Globe Scientific

Large Volume Centrifuge Tubes

<h2 data-section-id="kb9bww" data-start="0" data-end="42">What Are Large Volume Centrifuge Tubes?</h2>
&nbsp;
Large volume centrifuge tubes are polypropylene conical-bottom vessels available in 250 mL and 500 mL formats, designed for preparative and process-scale centrifugation at speeds of up to 6,000&ndash;7,500 &times; g in compatible swing-bucket or fixed-angle rotors. These tubes are used for applications such as cell harvesting from bioreactors, viral vector and vaccine production, large-scale protein precipitation, gradient preparation, and clarification of culture supernatants where 50 mL tubes are insufficient.
Polypropylene construction provides resistance to most organic solvents, stability across a temperature range of &minus;80 &deg;C to +120 &deg;C, and full autoclavability for sterile processing workflows.
Use 250 mL or 500 mL centrifuge tubes for process-scale volumes above 50 mL when compatible large-capacity rotors and support systems are available.
&nbsp;
<h2 dir="ltr">This section contains:</h2>
&nbsp;
<a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes/250ml-centrifuge-tubes" title="250mL Centrifuge Tubes">250mL Centrifuge Tubes </a>&ndash; Optimized for pilot-scale harvesting and efficient mid-range sample concentration.
<a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes/500ml-centrifuge-tubes" title="500mL Centrifuge Tubes">500mL Centrifuge Tubes</a> &ndash; Industrial-strength vessels designed for bulk bioprocessing and high-capacity separations.
&nbsp;
<h2 data-section-id="1riycx1" data-start="904" data-end="950">How to Choose Large Volume Centrifuge Tubes</h2>
&nbsp;
250 mL vs 500 mL
Choose 250 mL tubes when process volumes per tube run 150&ndash;240 mL &mdash; overfilling beyond ~80% of rated volume risks spill and cap failure. 500 mL tubes are used for volumes from 300&ndash;480 mL, common in vaccine and viral vector production, large-scale mammalian cell culture harvest, and preparative density-gradient centrifugation. The 500 mL tube has a larger diameter (95 mm) and shorter height (146 mm) than the 250 mL tube (60 mm &times; 160 mm), requiring a different rotor adapter.
Support Cushions and Rotor Compatibility
Large volume centrifuge tubes require properly fitted rotor support cushions (typically made from polyetherimide or similar materials) unless the rotor is specifically designed for direct tube support. These cushions prevent tube wall deformation under centrifugal force. Without correct support, tube failure may occur. Compatibility between tubes, cushions, and rotor buckets must always be confirmed before use.
Cap Type: Plug-Seal vs Flat Screw Cap
Plug-seal screw caps made from high-density polyethylene (HDPE) provide an internal sealing mechanism that improves leak resistance during high-force centrifugation, especially with viscous or biohazardous materials. Flat screw caps are generally used for lower-risk applications involving mixing or storage. Large volume polypropylene tubes are typically supplied with plug-seal caps rated for reliable containment under pressure conditions.
Sterility and Certification
Sterile large volume centrifuge tubes are gamma-irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶ and are required for applications such as viral vector production, vaccine manufacturing, and primary cell culture workflows. Non-sterile RNase-free and DNase-free tubes are suitable for chemical processing steps and downstream analytical procedures where sterility is not critical.
&nbsp;
<h2 data-section-id="1xe8cvr" data-start="3019" data-end="3066">Compare Large Volume Centrifuge Tube Formats</h2>
&nbsp;
250 mL polypropylene conical centrifuge tubes are designed for intermediate process-scale applications. These tubes typically measure around 60 mm in diameter and 160 mm in height and are rated for centrifugal forces up to approximately 6,000&ndash;7,500 &times; g. They are commonly supplied sterile with HDPE plug-seal caps and are packaged in bags, often in case quantities of around 70 tubes per case.
500 mL polypropylene conical centrifuge tubes are intended for large-scale processing applications involving high culture volumes or bulk precipitation workflows. These tubes typically measure around 95 mm in diameter and 146 mm in height and are rated up to approximately 6,000 &times; g. They are supplied sterile with HDPE plug-seal caps and are commonly packaged in case quantities of around 40 tubes per case.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3881" data-end="3906">Specifications Context</h2>
&nbsp;
Large volume polypropylene centrifuge tubes are manufactured from high-clarity polypropylene resin and are certified sterile, RNase-free, DNase-free, and pyrogen-free. Sterile lots are typically gamma-irradiated to SAL 10⁻⁶ in accordance with ISO 11137 standards. Molded graduations allow approximate volume estimation without removing tubes from the centrifuge rotor.
As of 2026, MBP stocks both 250 mL and 500 mL large volume centrifuge tube formats. Support cushions and rotor-specific accessories are typically required and must be verified for compatibility prior to ordering.
Ready to secure your high-volume runs? <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Reach out to the Molecular Biology Products Inc. team</a> for a custom quote today.

<h2>What Are 250 mL Centrifuge Tubes?</h2>
&nbsp;
250 mL centrifuge tubes are large-volume polypropylene conical tubes designed for processing sample volumes that exceed the capacity of standard 50 mL conical tubes. They are commonly used for cell culture harvests, density-gradient separations, protein precipitation, viral workflows, and other preparative laboratory applications.
These tubes provide an efficient solution for handling medium- to large-scale samples while remaining easier to manage than 500 mL formats. Most models feature leak-resistant caps, molded graduations, and compatibility with swing-bucket centrifuge rotors designed for large-volume processing.
&nbsp;
<h2>What we offer at MBP:</h2>
&nbsp;
<ul>
<li>250 mL centrifuge tubes with leak-proof caps and molded graduations</li>
<li>Tubes with transfer-cap configurations for closed-system fluid handling</li>
<li>Gamma-irradiated sterile tubes for biopharmaceutical and cell culture applications</li>
<li>Autoclavable polypropylene vessels for repeated sterilization cycles</li>
<li>RNase-free and DNase-free tubes for molecular biology workflows</li>
<li>Large-volume centrifuge tubes designed for demanding processing applications</li>
</ul>
&nbsp;
<h2>How to Choose 250 mL Centrifuge Tubes</h2>
&nbsp;
Rotor Compatibility Verify that your centrifuge system supports 250 mL tubes and any required adapters or support cushions. Proper rotor compatibility is essential for safe and reliable operation during centrifugation.
Sterility Requirements Sterile, gamma-irradiated tubes are recommended for cell culture, viral, and sensitive biological applications. Non-sterile options are suitable for general laboratory processing and chemical workflows where sterility is not required.
Graduations and Visibility Molded graduations provide convenient approximate volume measurements and should remain visible after repeated use and sterilization procedures.
Packaging and Supply Planning Large-volume centrifuge tubes are often supplied in moderate case quantities. Laboratories with frequent processing requirements may benefit from maintaining regular inventory levels to avoid workflow interruptions.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
250 mL centrifuge tubes are typically manufactured from high-clarity polypropylene and fitted with secure, leak-resistant caps for safe sample handling. Many products are autoclavable and suitable for temperature ranges commonly encountered in laboratory storage and sterilization procedures.
Sterile versions are available with certifications such as RNase-free, DNase-free, and non-pyrogenic status to support molecular biology and bioprocessing applications. Proper accessories, including compatible rotor cushions and adapters, should always be verified before use.
As of 2026, MBP offers large-volume centrifuge tubes for research, clinical, and bioprocessing laboratories. <a href="https://mbpinc.net/contact-us">Contact the Molecular Biology Products Inc. team</a> for product information and technical support.

250ml Centrifuge Tubes

<h2 data-section-id="57m9pt" data-start="0" data-end="36">What Are 500 mL Centrifuge Tubes?</h2>
&nbsp;
500 mL centrifuge tubes are large-format polypropylene conical vessels used for process-scale centrifugation applications where sample volumes exceed approximately 300 mL per tube. These tubes typically have standard dimensions of 95 mm outer diameter and 146 mm height, and feature a conical bottom that enables efficient pellet formation and recovery. They are rated for use up to 6,000 &times; g in a compatible swing-bucket rotor system equipped with polyetherimide (PEI) support cushions.
These tubes are commonly used in large-scale mammalian cell culture harvesting from bioreactors, viral vector production (including AAV and lentivirus), vaccine manufacturing workflows, large-volume density-gradient separations, and preparative-scale protein or nucleic acid precipitation.
500 mL centrifuge tubes are used when process volumes are 300&ndash;480 mL per run and a 250 mL tube would require multiple centrifugation cycles.
<h2 dir="ltr">&nbsp;</h2>
<h2 dir="ltr">The MBP Quality Standard:</h2>
&nbsp;
<ul>
<li dir="ltr">High-capacity 500ml vessels for industrial-strength bulk concentration.</li>
<li dir="ltr">Bi-directional transfer caps with silicone tubing for closed-system fluid handling.</li>
<li dir="ltr">Gamma-irradiated sterile containers validated for aseptic processing.</li>
<li dir="ltr">Chemical-resistant construction for durability against aggressive buffers.</li>
</ul>
&nbsp;
<h2 data-section-id="1njhdwk" data-start="971" data-end="1011">How to Choose 500 mL Centrifuge Tubes</h2>
&nbsp;
Rotor Compatibility First
500 mL centrifuge tubes require a compatible swing-bucket rotor system that can accommodate a 95 mm tube diameter along with appropriate PEI support cushions. Common compatible systems include Thermo Fisher TX-750 and equivalent swing-bucket rotor models. It is essential to confirm both rotor bucket compatibility and correct cushion part numbers before use.
Using 500 mL tubes without proper support cushions or in incompatible rotors can lead to tube deformation or failure even at relatively low centrifugal forces.
Sterility for Bioproduction Workflows
Sterile 500 mL centrifuge tubes are gamma-irradiated to a sterility assurance level (SAL) of 10⁻⁶ and are certified RNase-free, DNase-free, and non-pyrogenic. These are required for bioproduction applications such as viral vector manufacturing, vaccine production, and primary cell culture workflows.
Non-sterile tubes may be used for downstream processing steps, chemical precipitation, or other laboratory applications where sterility is not required.
Cap Integrity and Leak Prevention
500 mL tubes are equipped with HDPE plug-seal screw caps that create an internal compression seal within the tube neck. This design provides leak resistance up to 95 kPa (14 psi), which is important for handling biohazardous or high-risk samples such as BSL-2 cell lines or viral vectors.
Proper cap closure is critical before centrifugation; caps must be fully tightened without cross-threading to ensure safe operation.
Pack Size and Ordering Considerations
These tubes are typically supplied in packs of 5 tubes per bag and 8 bags per case, totaling 40 tubes per case. Because of the relatively low number of tubes per case compared to smaller formats, laboratories performing high-throughput bioprocessing often maintain standing purchase orders to avoid supply interruptions.
&nbsp;
<h2 data-section-id="1hsndwv" data-start="2893" data-end="2933">Specifications Context</h2>
&nbsp;
500 mL polypropylene centrifuge tubes are manufactured from high-clarity polypropylene resin and are certified RNase-free, DNase-free, and non-pyrogenic. Sterilization is performed via gamma irradiation in compliance with ISO 11137 standards, achieving a sterility assurance level of 10⁻⁶. Molded graduations on the tube body allow approximate volume measurement without removing the tube from the centrifuge rotor.
As of 2026, MBP supplies 500 mL large volume centrifuge tubes; availability, brand options, and lot-specific details may vary. Support cushions are required for safe operation and must be confirmed as compatible with the selected rotor system prior to ordering.
Secure your research and your results. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with the experts at Molecular Biology Products Inc.</a> for a quote.

500ml Centrifuge Tubes

Flyer

6334 by Globe Scientific is a 225 mL polypropylene centrifuge tube with an attached HDPE plug-seal cap, rated to 7,500 × g. Gamma-irradiation sterilized (SAL 10⁻⁶, ISO 11137), DNase/RNase-free, non-pyrogenic, autoclavable at 121°C, and freezable to −40°C. Manufactured under ISO 13485:2016 and ISO 9001:2015 in a Class 100,000 cleanroom. 48 tubes/case (6/bag).

Manufacture

Centrifuge Tube, 225mL Large Volume, Attached White Screw Cap, PP, 6/Bag, CS/48

Centrifuge Tube, 250mL Large Volume, Attached White Screw Cap, PP, 6/Bag, CS/48

Centrifuge Tube, 500mL Large Volume, Attached White Screw Cap, PP, 6/Bag, CS/36

ELISA Plates

<h2 data-section-id="471ror" data-start="0" data-end="25">What Are ELISA Plates?</h2>
&nbsp;
ELISA plates are specialized 96-well flat-bottom polystyrene microplates designed specifically for enzyme-linked immunosorbent assays (ELISA) and related immunodetection applications. Each well features a surface treatment that promotes efficient adsorption of proteins such as capture antibodies and antigens, creating a stable solid-phase platform for binding, washing, detection, and signal generation steps within an ELISA workflow.
These plates are engineered with optical-grade flat bottoms to provide accurate absorbance, fluorescence, or luminescence measurements and conform to SBS/ANSI microplate standards, ensuring compatibility with automated plate washers, liquid handling systems, incubators, and microplate readers. Typical well capacities range from 300&ndash;400 &micro;L, making them suitable for both manual and high-throughput laboratory testing.
&nbsp;
<h2 dir="ltr">At MBP, you can find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
96 Well ELISA Plates with high-optic clarity for precise readings
</li>
<li dir="ltr" aria-level="1">
Microtitration 96-Well Plates for versatile incubation and testing
</li>
<li dir="ltr" aria-level="1">
Lids for Microtitration Plates available in sterile and non-sterile options
</li>
<li dir="ltr" aria-level="1">
Standard 12x8 configuration plates for easy workflow integration
</li>
<li dir="ltr" aria-level="1">
Alpha-numeric indexed wells for accurate sample tracking
</li>
<li dir="ltr" aria-level="1">
Polystyrene assay plates optimized for antigen-antibody complexes
</li>
<li dir="ltr" aria-level="1">
Surface-treated plates for reliable in-vitro diagnostic results
</li>
<li dir="ltr" aria-level="1">
Clear-bottom plates for enhanced signal detection
</li>
</ul>
&nbsp;
<h2 data-section-id="10hv8xq" data-start="1101" data-end="1130">How to Choose ELISA Plates</h2>
&nbsp;
Surface Binding Capacity
The surface binding characteristic is one of the most important selection criteria. High-binding plates are the standard choice for sandwich ELISA, indirect ELISA, and most commercial assay kits because they efficiently immobilize antibodies and antigens. Medium-binding plates are better suited for smaller proteins and peptides that may lose activity on highly adsorptive surfaces. Ultra-high-binding plates are available for low-abundance biomarker detection where maximum protein capture improves assay sensitivity.
Plate Color
Plate color should be matched to the assay detection method. Clear plates are the industry standard for colorimetric ELISA assays using substrates such as TMB that are measured at 450 nm. White plates enhance signal intensity in chemiluminescent assays by reflecting emitted light, increasing sensitivity. Black plates minimize background fluorescence and light scatter, making them ideal for fluorescence-based ELISA and immunoassay applications.
Detachable vs. Solid-Frame Format
Detachable strip plates contain individual 8-well strips that can be removed and used independently. This format reduces reagent consumption and lowers costs when processing fewer than 96 samples. Solid-frame plates provide greater structural rigidity and are preferred for automated workflows involving robotic washers and readers where consistent positioning is critical.
Lot Consistency and Quality Control
For validated methods, regulated environments, and diagnostic applications, consistent plate performance is essential. Laboratories should consider plates supplied with lot-specific quality documentation and low well-to-well variation. Parameters commonly evaluated include protein-binding capacity, background absorbance, and coefficient of variation (CV) across wells and manufacturing lots.
Instrument Compatibility
Most ELISA plates are manufactured to standard SBS dimensions and are compatible with major microplate readers and automated washers. Laboratories using automated systems should verify compatibility with specific washer manifolds, readers, and robotic platforms, particularly when using detachable strip formats.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4234" data-end="4259">Specifications Context</h2>
&nbsp;
ELISA plates are typically manufactured from high-quality USP Class VI polystyrene and undergo specialized surface treatment to achieve consistent protein adsorption across all wells. Standard 96-well formats generally provide working volumes of approximately 300 &micro;L per well and include alphanumeric indexing to support sample tracking and laboratory workflow management.
High-binding ELISA plates commonly achieve protein adsorption capacities exceeding 400 ng IgG/cm&sup2;, while ultra-high-binding variants may approach 800 ng/cm&sup2;. These characteristics help ensure strong analyte capture and reproducible assay performance across research, clinical, pharmaceutical, biotechnology, and diagnostic laboratories.
The MBP range provides the mechanical strength and surface consistency required to ensure your high-stakes diagnostic data that must remain error-free. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Contact us</a> and get your quote now.

Lids for Microtitration Plates, PS

129930 by Globe Scientific is a clear polystyrene lid for 96-well microtitration plates, compatible with Globe Scientific 120030 and 120330 microtest plates and standard SBS 96-well formats. Available sterile or non-sterile; supplied 150 per case. Suitable for ELISA incubations, cell culture, and microbiology plate assays.

Lid, for Microtest Plates, PS, 150/Cs

Lid, for Microtest Plates, PS, STERILE, Individually Wrapped, 150/Cs

Magnetic Stirrers

<h2>What Are Laboratory Magnetic Stirrers?</h2>
&nbsp;
A laboratory magnetic stirrer uses a rotating permanent magnet or electromagnet installed below a flat work surface to create a spinning magnetic field above the plate. A PTFE (polytetrafluoroethylene)-coated magnetic stir bar placed inside a vessel couples to this field and rotates, mixing the liquid from within. Because there is no physical contact between the stirrer and the contents of the vessel, the technique is contamination-free, amenable to closed-vessel operation, and compatible with corrosive, biological, and hazardous reagents. Magnetic stirrers are used without heating for buffer and media preparation, titrations, pH measurement, enzyme inhibition assays, hybridization reactions, and dissolution studies. Multi-position magnetic stirrers drive multiple stir bars simultaneously on a single unit, enabling parallel sample processing in analytical laboratories, pharmaceutical quality control, and environmental testing workflows. Use a standalone magnetic stirrer (no heat) when you need uniform mixing without thermal input: titrations, pH measurement, cold-room work, and mixing heat-labile reagents.
&nbsp;
<h2 dir="ltr">What You Will Find:&nbsp;</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Digital hotplate magnetic stirrers offer precise temperature control up to 550&deg;C and dual LED displays, making it easy to monitor both heat and speed at a glance.
</li>
<li dir="ltr" aria-level="1">
High-capacity magnetic stirrers are designed to handle larger volumes with ease, providing the powerful torque needed for consistent mixing in bigger batches.
</li>
<li dir="ltr" aria-level="1">
Compact and ultra-flat stirrers provide a space-saving solution for crowded benchtops, featuring low-profile designs and PET surfaces that are tough and easy to clean.
</li>
<li dir="ltr" aria-level="1">
Multi-channel magnetic stirrers allow you to stir up to 10 samples simultaneously with uniform speed, perfect for boosting your lab&rsquo;s productivity.
</li>
<li dir="ltr" aria-level="1">
Analog and classic stirrers bring reliable, straightforward performance to your workstation with durable stainless steel or ceramic-coated plates that resist wear and tear.
</li>
<li dir="ltr" aria-level="1">
Auto-reverse and timer functions give you professional-level control over your mixing cycles, ensuring your samples get exactly the treatment they need.
</li>
</ul>
&nbsp;
<h2>How to Choose a Magnetic Stirrer</h2>
&nbsp;
Single-position vs. multi-position
Single-position stirrers are the most common format for benchtop chemistry and biology work, accommodating one vessel at a time. Multi-position magnetic stirrers (2, 6, 10, or 15 positions on a single plate) are used for high-throughput applications such as dissolution testing, parallel reaction screening, and environmental sample preparation, where identical mixing conditions across multiple vessels are required simultaneously.
Digital vs. analog control
Analog (dial-control) magnetic stirrers are reliable, low-maintenance, and appropriate when mixing speed precision is not critical. Digital stirrers display speed in rpm, maintain the setpoint with a feedback motor controller, and provide reproducible speed settings session to session, which is important for protocols requiring a specific agitation rate (e.g., OD600 turbidity assays, viscosity studies). Some digital models log rpm and run-time data via USB.
Speed range and stir bar compatibility
Most magnetic stirrers cover 100 to 1500 rpm. Microplate and high-throughput models reach up to 1500 rpm with small stir bars. For large-volume vessels (3 L and above), a lower maximum speed (300 to 500 rpm) with a large stir bar (60 mm to 80 mm) is more appropriate than attempting high speed with an undersized bar. PTFE stir bars are available in lengths from 3 mm (for microcentrifuge tubes) to 80 mm (for large vessels); octagonal, cross-shaped, and egg-shaped bars improve mixing in round-bottom flasks compared to standard cylindrical bars.
Plate size and chemical resistance
Plate dimensions determine the largest vessel the stirrer can stably support. A 135 mm x 135 mm plate accommodates a 1 L beaker; larger plates (200 mm x 200 mm and above) are needed for 3 L to 5 L vessels. PTFE-coated plates or ceramic tops offer the highest chemical resistance for work with acids, bases, and organic solvents. Stainless steel tops provide stronger magnetic coupling for viscous materials.
Cold-room and CO2 incubator use
Magnetic stirrers designed for cold-room use (2 degrees C to 8 degrees C) or for operation inside a CO2 incubator use sealed, humidity-resistant motor housings and are rated for continuous operation under those environmental conditions. Standard benchtop stirrers are not rated for cold-room or high-humidity incubator use; using them in these environments shortens motor life.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Motor type affects long-term reliability: brushless DC motors require no maintenance and last longer than brushed motors, which need periodic brush replacement in continuous-use settings. PTFE stir bars should be replaced when the PTFE coating chips or shows wear; bare metal exposure contaminates the solution and interferes with magnetic coupling. For regulated applications (pharmaceutical QC, ISO 17025 labs), specify a stirrer with a digital speed display and speed accuracy of plus or minus 1 rpm to support protocol documentation requirements. Related equipment:&nbsp;<a href="https://mbpinc.net/equipments/temperature-control-equipment/hotplate-and-stirrers"></a>
&nbsp;
Ready to find the perfect spin for your lab? Browse our magnetic stirrer collection and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote today.

Magnetic Stirrer, 100-240v, 50/60Hz, with US, UK and EU plugs, 300-2000rpm, Retort stand, PET surface

GSE by Globe Scientific is a 300-2000 rpm magnetic stirrer with analog dial control, PET chemical-resistant surface, brushless DC motor, integrated retort stand with probe clamp, and universal 100-240V input with US, UK, and EU plug adapters included. Max stirring volume approximately 1.5 L. No heating function.

Magnetic Stirrer, Low Profile, 100-240V, 50/60Hz, with US, UK, EU Plugs, 25 to 1500rpm, Auto-Reverse Function, IP65 rating, PET surface

GSF by Globe Scientific is a 15 mm (0.6 in) low-profile magnetic stirrer with universal voltage (100–240 V), included US/UK/EU plug adapters, IP65 ingress protection, chemical-resistant PET surface, and auto-reverse mix mode. cTUVus certified. ISO 9001:2015 manufacturer.

Hotplate & Stirrer

<h2>What Are Laboratory Hotplates and Stirrers?</h2>
&nbsp;
Laboratory hotplates are electrically heated work surfaces used to warm flasks, beakers, and vessels containing reagents, culture media, buffers, and reaction mixtures. Magnetic stirrers use a rotating magnetic field beneath the plate to spin a PTFE-coated stir bar inside the vessel, providing uniform mixing without mechanical contact. Combination hotplate-stirrer units integrate both functions in a single instrument and are the most common format in chemistry, biology, and pharmaceutical labs. Standalone magnetic stirrers (without heating) are used for room-temperature mixing, pH measurement, and buffer preparation. Applications include chemical synthesis and recrystallization, cell culture media preparation, buffer and reagent preparation, dissolution testing, enzyme assays, protein and nucleic acid precipitation, and polymer synthesis. Digital hotplate-stirrers with PID temperature control, external probe inputs for actual solution temperature monitoring, and PTFE-coated ceramic or aluminum plates are the standard in research-grade instruments. Choose a combination hotplate-stirrer for most bench chemistry and biology work; choose a standalone magnetic stirrer for room-temperature mixing where a heating element would be a contamination or safety risk.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/equipments/temperature-control-equipment/hotplate-and-stirrers/magnetic-stirrers" title="Magnetic Stirrers">Magnetic Stirrers</a> provide powerful, quiet rotation using high-quality magnetic bars to ensure your liquids are blended perfectly every time.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/equipments/temperature-control-equipment/hotplate-and-stirrers/hotplate-and-stirrer-accessories" title="Hotplate &amp; Stirrer Accessories">Hotplate &amp; Stirrer Accessories</a> include everything from extra stir bars to external temperature probes, helping you customize your setup for better accuracy.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/equipments/temperature-control-equipment/hotplate-and-stirrers/multi-position-hotplate-stirrers" title="Multi-Position Hotplate Stirrers">Multi-Position Hotplate Stirrers</a> allow you to process several samples at once with uniform heat and speed, making your high-throughput days much more manageable.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/equipments/temperature-control-equipment/hotplate-and-stirrers/overhead-stirrers" title="Overhead Stirrers">Overhead Stirrers</a> deliver the high-torque power needed for thick, high-viscosity liquids that standard magnetic stirrers just can't handle.
</li>
</ul>
&nbsp;
<h2>How to Choose a Lab Hotplate or Stirrer</h2>
&nbsp;
Hotplate-only vs. stirrer-only vs. combination unit
Hotplates without a stirring function are used for applications requiring only controlled heating: drying samples, warming baths, or maintaining solution temperature without agitation. Standalone stirrers (no heating) handle room-temperature mixing, titrations, and sample homogenization without thermal risk. Combination hotplate-stirrers serve both purposes in one instrument and are the standard choice for chemistry and cell biology benches where both heating and mixing are regularly needed.
Plate material: ceramic vs. stainless steel vs. aluminum
Ceramic top plates resist corrosive chemical spills, provide a white surface ideal for titrations and colorimetric work, and withstand temperatures up to 550 degrees C. Stainless steel plates offer stronger magnetic coupling and higher stirring force, preferred for dense suspensions or high-viscosity liquids. Aluminum plates heat and cool faster than ceramic, making them suitable for applications requiring rapid temperature changes. PTFE-coated plates are chemically resistant but limited to lower temperatures.
Temperature range and accuracy
Standard combination units reach 300 degrees C to 380 degrees C on the plate surface. Digital PID-controlled units with an external temperature probe monitor actual solution temperature (not plate temperature) and maintain the solution within plus or minus 1 degree C at setpoint, which is important for temperature-sensitive enzyme reactions, crystallization protocols, and culture media preparation. Analog units without external probes rely on plate surface temperature, which can differ significantly from solution temperature.
Stirring speed and stir bar volume
Stirring speed ranges from 100 rpm for gentle mixing to 1500 rpm for vigorous suspension. Match stir bar size to vessel volume: a 10 mm bar for tubes and small vials, a 25 mm to 40 mm bar for 50 mL to 500 mL beakers, and a 50 mm to 80 mm bar for 1 L to 5 L vessels. Using a stir bar too large for the vessel prevents rotation; too small causes inefficient mixing.
Safety features
For work with flammable solvents, specify an explosion-proof or EX-rated hotplate with enclosed heating elements that do not produce sparks. Digital models with over-temperature alarms and contact temperature sensors on the plate surface prevent runaway heating events. Some models include motor auto-shutoff if the stir bar decouples, reducing the risk of unattended overheating.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Maximum plate temperature (300 to 550 degrees C) is a surface rating; actual solution temperature depends on vessel geometry, fill volume, and heat loss. Use an external temperature probe (PT1000 or thermocouple) inserted into the solution for accurate setpoint control. Plate dimensions (typically 135 mm x 135 mm to 300 mm x 300 mm) determine the vessel sizes the unit can safely support; oversized vessels extending beyond the plate perimeter are unstable. PTFE stir bars should be inspected for wear periodically, as chipped PTFE releases particles into the solution; replace any stir bar showing surface damage.&nbsp;
&nbsp;
Ready to stir things up? Take a look through our hotplate and stirrer collection and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a friendly quote today.

Hotplate & Stirrers

Magnetic Stirrer, Square, with Custom Labels, 100-240v, 50/60Hz, with US, UK and EU plugs, 300-2000rpm, Retort stand, PET surface

GSE-S by Globe Scientific is a square magnetic stirrer with a 120 × 115 mm chemical-resistant PET surface, operating at 300–2,000 rpm via a brushless DC motor at just 7.2 W total power. The unit weighs 0.3 kg (150 × 144 × 54 mm), runs virtually silently, accepts 100–240V with US, UK, and EU plugs included, and ships with a retort stand and four interchangeable custom-label overlays. Maximum stirring capacity is 1.5 L (water), with a 2-year warranty.

Working area

Maximum volume

Maximum magnetic bar length

Motor Output Power

Motor Type

Speed Range

Spill Protection

Voltage

Power

Dimensions (WxDxH)

Weight

Operating Temperature

Permissible Relative Humidity

Warranty

Pipette Controller

<h2 dir="ltr"> What Are Pipette Controllers?</h2>
 A pipette controller (also called a pipetting aid, motorised pipette filler, or pipette boy) is a battery-operated instrument that accepts and drives 1&ndash;100 mL glass or plastic serological pipettes, replacing the rubber bulb, Pi-pump, and manual mouth-pipetting techniques. A motorised rotating wheel or roller generates controlled airflow to aspirate and dispense liquid at variable speeds; a hydrophobic 0.2 &micro;m inline filter prevents liquid and aerosol from reaching the motor. Controllers accept all standard serological pipette diameters (1 mL to 100 mL) through a silicone or rubber cone adapter. They are the standard dispensing tool for media preparation, cell culture reagent transfer, serial dilutions in large volumes, and reagent bottle-to-flask transfers. The disposable consumables used in the instrument. A pipette controller is required for safe, ergonomic use of serological pipettes in any volume from 1 mL to 100 mL &mdash; the rubber bulb is not a recommended alternative.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Electronic pipette controllers for precise liquid control
</li>
<li dir="ltr" aria-level="1">
Manual pipette controllers for routine laboratory use
</li>
<li dir="ltr" aria-level="1">
Lightweight ergonomic pipette controllers
</li>
<li dir="ltr" aria-level="1">
Adjustable speed pipette controllers for controlled dispensing
</li>
<li dir="ltr" aria-level="1">
Controllers compatible with glass and plastic serological pipettes
</li>
<li dir="ltr" aria-level="1">
Sterile-use pipette controllers for sensitive applications
</li>
<li dir="ltr" aria-level="1">
High-precision aspirating controllers for accurate volume handling
</li>
</ul>
<h2 dir="ltr"> How to Choose a Pipette Controller</h2>
 Power Source: Battery vs Rechargeable vs Mains Battery-powered controllers (AA or rechargeable internal battery) provide cordless flexibility across the bench and BSC. Rechargeable lithium-ion controllers offer 8&ndash;10 hours of continuous use per charge and charge from a base stand. Mains-powered controllers provide continuous operation without charge interruption &mdash; preferred in high-throughput cell culture facilities. Speed Control Two-speed controllers offer slow (for precise fill) and fast (for rapid dispense) modes. Variable-speed controllers with a continuous-pressure or stepless trigger allow fine-tuned flow rate adjustment for viscous media, delicate cell suspensions, or filling against gravity into narrow-neck vessels. Filter: Inline 0.2 &micro;m Hydrophobic Filter A 0.2 &micro;m hydrophobic inline filter is the critical protection component &mdash; it prevents liquid from entering the motor during accidental over-aspiration. Filters should be replaced when liquid reaches the filter or when flow resistance increases noticeably; replacement filters are sold separately for most models. Universal Cone Compatibility Confirm the controller's cone adapter accepts your pipette brand's tip diameter. Most controllers use a silicone or rubber cone that accommodates 1&ndash;100 mL serological pipettes from Falcon, Globe Scientific, and Nest Scientific without adapters. Autoclavability Controllers intended for BSC and sterile cell culture use should have an autoclavable cone, nose piece, and filter assembly. They have autoclavable lower sections; the battery/electronic module is not autoclavable. 
<h2 dir="ltr"> Specifications Context</h2>
 Standard pipette controllers accept serological pipette diameters from 1 mL (narrow shaft) through 50 mL and 100 mL (wide-body). Replacement 0.2 &micro;m hydrophobic filters are sold in packs; filter replacement interval is typically every 6&ndash;12 months or immediately after liquid ingress. It has a runtime of approximately 8 hours per charge on a single lithium-ion battery.&nbsp; 
&nbsp;
Control your workflow with ease&mdash;designed for smooth aspiration, consistent dispensing, and dependable performance at every step. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Contact the MBP Team now.</a>

Manual Serological Pipette Controllers

3375 by Globe Scientific is a manual serological pipette controller compatible with plastic and glass pipettes from 1mL to 100mL. A squeeze bulb and analog side lever provide variable-speed aspiration; a blow-out button completes dispensing. An internal 3µm hydrophobic filter (Item 3375-FIL) protects the mechanism and is field-replaceable. Available in five colors for multi-user bench identification.

Pipette, Manual Serological Pipette Controller, Blue

Pipette, Manual Serological Pipette Controller, Green

Pipette, Manual Serological Pipette Controller, Light Blue

Pipette, Manual Serological Pipette Controller, Red

Pipette, Manual Serological Pipette Controller, Yellow

Filter, 3.0um, for # 3375 Manual Serological Pipette Controllers

Weighing Dishes

<h2 data-section-id="1dr6xip" data-start="0" data-end="41">What Are Laboratory Weighing Dishes?</h2>
&nbsp;
Laboratory weighing dishes (also called weigh boats or pour boats) are shallow, flat-bottomed, flexible disposable containers molded from a special grade of antistatic polystyrene (PS), rated from &minus;10&deg;C to +80&deg;C, used to hold solid or liquid samples on an analytical or top-loading balance pan during mass measurement. After weighing, the flexible PS walls are bent to form a pour spout for transferring the sample into a flask, beaker, or tube with minimal loss. Globe Scientific antistatic PS weighing dishes are ISO 9001:2015 certified, contaminant-free, biologically inert, and resistant to dilute acids, aqueous solutions, alcohols, and bases, available in square, hexagonal, and pour-boat styles at capacities from 10 mL to 350 mL. Weighing dishes are single-use disposables: washing removes the antistatic treatment. Choose black dishes for light-colored samples and white dishes for dark or colored samples.
&nbsp;
<h2 data-path-to-node="2">What you will find:</h2>
&nbsp;
<ul data-path-to-node="3">
<li>
Plastic weighing dishes (20 mL to 100 mL+) for routine lab use
</li>
<li>
Antistatic weighing boats for handling fine powders
</li>
<li>
Aluminum weighing dishes for heating and moisture analysis
</li>
<li>
Square and hexagonal dishes for easy pouring
</li>
<li>
Pour-spout weighing boats for controlled transfer
</li>
<li>
Micro weighing dishes for low-volume samples
</li>
</ul>
&nbsp;
<h2 data-section-id="19fhpr8" data-start="963" data-end="1008">How to Choose Laboratory Weighing Dishes</h2>
&nbsp;
Shape
Square dishes with smooth sloping sides and recessed rounded corners provide clean pour-outs with minimal retained sample&mdash;the standard choice for most powder and liquid weighing. Hexagonal dishes have a six-sided profile that resists sliding on balance pans and provides a positive grip point during transfer; the molded perimeter adds stability for larger sample masses. Pour-boat dishes have a molded spout for precise dispensing of liquid or gel-like samples into vessels after weighing.
Capacity
Use 10&ndash;20 mL square dishes for micro-scale weighing under 2 g (reagents, standards, APIs) on analytical balances with 0.1 mg readability. Use 50&ndash;100 mL for preparative weighing of 2&ndash;20 g on top-loading analytical balances. Use 200&ndash;350 mL for large-sample or bulk-powder weighing requiring a wide base to fit the balance pan.
Color
White dishes are the default for most applications. Black dishes in 10 mL square format improve visibility of white, cream, or fluorescent powders&mdash;confirming that all sample material has been transferred before recording the net weight. Both colors resist the same chemical exposure and have identical material specifications.
Temperature Range
Antistatic PS is rated to +80&deg;C, covering all ambient and moderate-warm sample conditions. For moisture determination at 105&deg;C (oven drying) or incineration applications, aluminum weighing dishes are the correct format&mdash;polystyrene will deform above 80&deg;C.
&nbsp;
<h2 data-section-id="hx13ys" data-start="3132" data-end="3159">Specifications Context</h2>
&nbsp;
Globe Scientific antistatic polystyrene weighing dishes are manufactured from a specialized PS formulation that provides controlled antistatic behavior, distinguishing them from standard polystyrene labware. Larger formats typically use a wall thickness of approximately 12 mil (&asymp;0.3 mm) to maintain structural rigidity on balance pans during weighing. As of 2026, 20 mL and 100 mL square weighing dishes are the most commonly stocked formats in pharmaceutical QC and academic analytical chemistry laboratories due to their versatility across micro and preparative weighing workflows. In addition to weighing applications, these dishes are also commonly used as temporary trays for snap-freezing small samples on dry ice during preparation steps. Explore funnels and the weighing dishes &amp; funnels category for complementary consumables.
<a href="https://mbpinc.net/consumables/weighing-dishes-and-boats/weighing-dishes" title="Connect with the MBP team" style="color: #236fa1; text-decoration: underline;">Connect with the MBP team</a>&nbsp;today to explore our full range of dimensions and material specifications, and find the perfect weighing dish for your laboratory&rsquo;s daily demands.

8326-Group-Weigh Dish Brochure

Micro Aluminum Weighing Dishes

8326 by Globe Scientific is a rectangular micro aluminum weighing dish, 25 x 7 x 7 mm, 1.12 mL capacity, with crimped walls and smooth flat base. Oil-free aluminum for microbalance use, elemental analysis, and pharmaceutical weighing. 100/box, 4,200/case. Stackable for easy dispensing.

Aluminum Micro Weigh Dish, Rectangle, 25L x 7W x 7H mm, 1.12ml, CS/4200

Aluminum Micro Weigh Dish,Rectangle, 25L x 7W x 7H mm, 1.12ml, with Handles, CS/4200

Aluminum Micro Weigh Dish,Round, 13mm x 3.5mm, .35ml, CS/2400

Aluminum Weigh Dish, U Round, 65 L x 18W x 9mmH, 10ml, CS/1600

Centrifuge Tubes

<h2>What Are Centrifuge Tubes?</h2>
 Centrifuge tubes are cylindrical laboratory containers with caps that are used to separate, pellet, and store biological or chemical samples through centrifugal force. They are commonly made from polypropylene (PP) or polystyrene (PS) and are available in sizes ranging from small 0.5 mL microtubes to larger 50 mL conical tubes. These tubes are widely used for cell pelleting, protein precipitation, DNA and RNA extraction, tissue homogenate clarification, and long-term sample storage. Depending on the material, they can withstand temperatures from &minus;80 &deg;C to +121 &deg;C.
In short, the best centrifuge tube depends on your centrifuge rotor, required g-force, sample volume, and sterility needs. 
<h2>What You Will Find: </h2>
<ul>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes" title="All Centrifuge Tubes">All Centrifuge Tubes</a>: Comprehensive selection of 15 mL and 50 mL conical tubes with clear graduations for daily lab workflows.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/oak-ridge-style-centrifuge-tubes" title="Oak Ridge Style Centrifuge Tubes">Oak Ridge Style Centrifuge Tubes</a>: High-speed, chemical-resistant tubes designed to withstand extreme RCF without deformation.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/centrifuge-bottles" title="Centrifuge Bottles">Centrifuge Bottles</a>: Heavy-duty, larger-capacity vessels engineered for bulk sample processing and high-velocity runs.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes" title="Large Volume Centrifuge Tubes">Large Volume Centrifuge Tubes</a>: Industrial-strength 250 mL and 500 mL tubes optimized for pilot-scale harvesting and bioprocessing.</li>
</ul>
&nbsp;
<h2>How to Choose Centrifuge Tubes</h2>
 Volume and Rotor Compatibility
Select a tube size that matches both your sample volume and centrifuge rotor. Microtubes ranging from 0.5&ndash;2 mL are commonly used in microcentrifuges and can typically handle speeds up to 20,000 &times; g. Midi tubes in the 5&ndash;10 mL range are suitable for intermediate sample volumes, while 15 mL and 50 mL conical tubes are commonly used in clinical, research, and preparative centrifuges.
Material: Polypropylene vs. Polystyrene
Polypropylene (PP) tubes offer excellent chemical resistance and can tolerate temperatures from &minus;80 &deg;C to +121 &deg;C. They are suitable for autoclaving and exposure to many laboratory solvents. Polystyrene (PS) tubes provide superior optical clarity, making it easier to visually inspect samples and liquid levels, but they have lower resistance to solvents and extreme temperatures.
Sterility and Contamination Control
Sterile centrifuge tubes are typically gamma- or E-beam-irradiated and certified free of RNase, DNase, and pyrogens. These tubes are recommended for RNA extraction, cell culture, and clinical applications where contamination must be minimized. Non-sterile tubes may still be RNase- and DNase-free and are often suitable for routine DNA work and general sample storage.
Cap Design
Attached screw caps help prevent cap mix-ups and sample contamination, especially in high-throughput laboratories. Separate caps can be quicker to open and may be preferred in workflows that require frequent access to samples. If tubes will be used with automated systems, cap dimensions should be verified for compatibility with liquid handling equipment.
Packaging Options
Racked tubes provide convenient organization and allow direct pipetting while the tubes remain in the rack. Bulk-bagged tubes offer a more economical option for laboratories that process large volumes of samples and already have tube storage systems in place.
<h2> Comparing Common Centrifuge Tube Types</h2>
 Microtubes (0.5&ndash;2 mL) are ideal for PCR preparation, microcentrifuge applications, and storage of small sample volumes. They can generally withstand centrifugal forces up to 20,000 &times; g.
Midi tubes (5&ndash;10 mL) are designed for intermediate sample volumes such as culture supernatants and can typically tolerate forces up to 16,000 &times; g.
Sterile 15 mL conical tubes are frequently used for cell pelleting, RNA extraction, and clinical sample processing, with typical ratings between 12,000 and 15,000 &times; g.
Sterile 50 mL conical tubes are commonly selected for larger-volume applications including tissue culture work, density gradient preparation, and large-scale sample processing.
Polystyrene conical tubes in 15 mL and 50 mL formats are often chosen when visual sample inspection is important and solvent exposure is minimal.
<h2> Specifications and Features</h2>
 Polypropylene centrifuge tubes from Globe Scientific and Nest Scientific are manufactured from USP Class VI virgin resin and do not contain plasticizers or processing additives. Sterile products are typically irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶. Most 15 mL tubes feature graduation marks at 1 mL intervals, while 50 mL tubes are usually graduated every 5 mL. MBP offers both bagged and racked centrifuge tube formats, including 15 mL and 50 mL conical tubes as well as smaller microtube and midi tube options.
MBP supports procurement departments by accepting purchase orders and offering institutional pricing for qualified high-volume customers. <a href="https://mbpinc.net/contact-us">Contact the MBP team today</a> for a customized quote.

<h2 data-section-id="132783j" data-start="0" data-end="34">What Are Microcentrifuge Tubes?</h2>
&nbsp;
Microcentrifuge tubes are small-volume polypropylene or low-binding polypropylene vessels available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. They are designed for use in fixed-angle and variable-speed microcentrifuges and are commonly used for sample preparation, DNA and RNA isolation, protein purification, enzyme reaction setup, and cryogenic sample storage. Depending on the application, these tubes are available with either hinged snap caps or threaded screw caps that help protect samples from leakage, contamination, and evaporation during centrifugation and storage.
Microcentrifuge tubes are essential consumables in molecular biology, biochemistry, clinical chemistry, proteomics, and genomics laboratories. Among all formats, the 1.5 mL snap-cap tube remains the most widely used microcentrifuge tube in routine molecular biology workflows.
Use 1.5 mL snap-cap polypropylene tubes for general molecular biology applications, 2.0 mL tubes for bead-based extraction and precipitation workflows, screw-cap tubes for volatile or valuable samples, and low-binding tubes for dilute proteins or nucleic acids.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
0.5mL, 0.6mL, 1.5mL, 2.0mL, 5.0mL (for small-volume to high-volume applications)
</li>
</ul>
<ul>
<li dir="ltr" aria-level="1">
Tubes only: Snap-cap, one-hand use
</li>
<li dir="ltr" aria-level="1">
O-ring caps: Leak-proof, secure seal
</li>
<li dir="ltr" aria-level="1">
Sterile: RNase/DNase-free for sensitive work
</li>
<li dir="ltr" aria-level="1">
Non-sterile: Cost-effective for general use
</li>
</ul>
&nbsp;
<h2 data-section-id="1yp6iwa" data-start="1166" data-end="1204">How to Choose Microcentrifuge Tubes</h2>
&nbsp;
Volume: 0.5 mL / 1.5 mL / 2.0 mL
&nbsp;0.5 mL tubes minimize dead volume for concentrated or precious samples and fit compact block heaters. 1.5 mL is the universal format compatible with virtually all microcentrifuge rotors, heating blocks, and automated liquid handlers. 2.0 mL provides extra headspace for vortex mixing and bead-based extraction protocols; the slightly wider diameter is also compatible with most 1.5 mL rotor slots.
Cap Style: Snap Cap vs Screw Cap
Snap-cap microcentrifuge tubes feature hinged lids that allow quick one-handed operation and are preferred for high-throughput laboratory workflows involving frequent pipetting.
Screw-cap tubes equipped with O-rings or sealing rings provide a hermetic seal capable of withstanding centrifugal forces up to 20,000 &times; g. These tubes are recommended for volatile reagents, repeated freeze-thaw cycles, and long-term storage at ultra-low temperatures. Laboratories requiring enhanced sample security often select screw-cap formats for valuable or irreplaceable specimens.
Standard vs Low-Binding Polypropylene
Standard polypropylene microcentrifuge tubes are suitable for most routine laboratory applications. Low-binding polypropylene tubes are designed to reduce sample adsorption to tube walls and are particularly beneficial when working with dilute proteins, low-concentration nucleic acids, or single-cell samples where maximizing recovery is critical.
Bottom Geometry: Conical vs Self-Standing
Conical-bottom tubes concentrate pellets at the tip of the tube, improving sample recovery and simplifying resuspension after centrifugation.
Self-standing tubes feature a flat base that allows them to remain upright without a rack, making them convenient for sample handling, labeling, and storage. While they offer greater bench-top convenience, pellets may form slightly off-center compared with traditional conical-bottom designs.
&nbsp;
<h2 data-section-id="11skgd4" data-start="3407" data-end="3446">Compare Microcentrifuge Tube Formats</h2>
&nbsp;
Snap-cap conical polypropylene microcentrifuge tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. Rated to approximately 16,000 &times; g, they are the standard choice for molecular biology, PCR preparation, nucleic acid extraction, and enzyme reaction workflows.
Screw-cap polypropylene tubes with O-rings are offered in 1.5 mL and 2.0 mL formats with either conical or flat-bottom designs. These tubes can withstand centrifugal forces up to 20,000 &times; g and are commonly used for volatile samples, cryogenic storage, and biobanking applications.
Self-standing screw-cap microcentrifuge tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. Featuring sealing rings and flat-bottom construction, they provide stable rack-free storage and are often used in color-coded sample management systems. These tubes are typically rated up to 20,000 &times; g.
Amber polypropylene microcentrifuge tubes are available with either snap caps or screw caps in 1.5 mL and 2.0 mL sizes. Designed for light-sensitive compounds, they help protect samples from light exposure while supporting centrifugation up to approximately 16,000 &times; g.
Dispenser-box snap-cap microcentrifuge tubes are commonly available in 1.5 mL and 2.0 mL formats and are packaged for convenient bench-top dispensing. They are ideal for high-throughput laboratories that process large numbers of samples and require efficient access to consumables.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4881" data-end="4906">Specifications Context</h2>
&nbsp;
Globe Scientific microcentrifuge tubes are manufactured from USP Class VI virgin polypropylene and are certified RNase-free, DNase-free, and non-pyrogenic by lot under ISO 9001:2015 quality management standards. Nest Scientific microcentrifuge tubes are similarly manufactured to USP Class VI specifications and are available in self-standing formats with six cap color options for simplified sample organization.
Standard packaging configurations include 500 tubes per case for snap-cap formats and 500 tubes per case supplied in 50-tube packs for screw-cap variants. As of 2026, MBP stocks both dispenser-box snap-cap tubes and screw-cap microcentrifuge tube formats, with bulk purchasing options available for high-volume laboratories.
Achieve consistent results with secure, medical-grade centrifugation vessels. <a href="https://mbpinc.net/contact-us" title="Contact Molecular Biology Products Inc." style="color: #236fa1; text-decoration: underline;">Contact Molecular Biology Products Inc.</a> for a quote to upgrade your workflow.

Microcentrifuge Tubes

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
&nbsp;
The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
&nbsp;
What you will find:
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
</li>
</ul>
&nbsp;
<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
&nbsp;
Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
&nbsp;
<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
&nbsp;
Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
&nbsp;
<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
&nbsp;
Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

111564-Group-MicroTubos Centrifugos

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Natural, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag

111564 by Globe Scientific is a 1.5 mL PP microcentrifuge tube with attached snap cap, graduated, natural, lot-certified RNase-free, DNase-free, and pyrogen-free. Supplied 500 tubes per resealable stand-up zip lock bag; autoclavable. Available in 8 color variants across the 111564 series.

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Natural, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Assorted Colors, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Natural, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Assorted Colors, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Natural, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Amber, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Blue, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Green, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Orange, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Red, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Violet, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Yellow, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 2.0mL, PP, Attached Snap Cap, Graduated, Assorted Colors, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/5000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Amber, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Blue, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Green, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Orange, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Red, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Violet, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 1.5mL, PP, Attached Snap Cap, Graduated, Yellow, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Amber, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Blue, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Green, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Orange, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Red, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Violet, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

Microcentrifuge Tube, 0.5mL, PP, Attached Snap Cap, Graduated, Yellow, Certified: Rnase, Dnase and Pyrogen Free, 500/Stand Up Zip Lock Bag, CS/10000

111620-111642-Tubes, Caps & Racks Catalog

Microcentrifuge Tube, 2mL, PP, No Cap, Graduated, Natural, 500/Bag, 2 Bags/ Bag

111620 by Globe Scientific is a 2 mL PP microcentrifuge tube with no cap — graduated, natural/translucent, autoclavable at 130°C. Supplied as 1,000 tubes (500/bag × 2 bags). Cap-free format for flexible capping or sealing options.

Microcentrifuge Tube, 2mL, PP, No Cap, Graduated, Natural, 500/Bag, 2 Bags/ Bag, BAG/1000

Microcentrifuge Tube, 1.5mL, PP, No Cap, Graduated, Natural, CS/10000

110540-Tubes, Caps & Racks Catalog

110540-TDS-110540

Microcentrifuge Tube, 6 x 47mm (400uL), LDPE, Attached Plug Cap, CS/18000

110540 is a 400–500 µL (0.5 mL) Beckman®-compatible LDPE microcentrifuge tube, 6 × 47 mm, with an attached plug cap. Non-graduated, non-sterile. Supplied as a case of 18,000 in bags of 1,000 for high-volume automated and manual workflows. Not autoclavable.

Microscope Accessories

<h2>What Are Microscope Accessories?</h2>
&nbsp;
Microscope accessories are supplementary components that configure, upgrade, or expand the function of a base microscope beyond its standard out-of-the-box specification. They fall into several categories: imaging accessories (cameras, camera adapters, camera relay lenses) for digital image capture and video documentation; optical accessories (additional or replacement objective lenses, eyepieces, auxiliary objectives for stereo microscopes) that change magnification or improve optical quality; fluorescence accessories (filter cube sets, LED fluorescence modules, mercury lamp adapters, UV/visible filter wheels) for adding or expanding fluorescence capability; stage accessories (multiwell plate holders, slide holders, cross-roller stages, motorized XY stage inserts, focus drives) that expand sample handling; illumination accessories (fiber optic illuminators, ring lights, polarizers, dark-field condensers) for alternative contrast methods; and maintenance and consumable accessories (immersion oil, lens paper, slide cleaning kits, replacement illuminator bulbs). Because accessory designs are instrument-specific (not all cameras, objectives, or stage inserts are universally compatible), identify the microscope model and manufacturer before ordering any accessory. Always identify the exact microscope model and manufacturer before ordering any accessory; thread standards, bayonet mounts, tube lengths, and connector formats vary significantly between brands and generations.
&nbsp;
<h2 class="PDq2pG_selectionAnchorContainer" data-section-id="bxblbi" data-start="0" data-end="23">What You Will Find:</h2>
&nbsp;
<ul data-start="25" data-end="548" data-is-last-node="" data-is-only-node="">
<li data-section-id="192mrl8" data-start="25" data-end="131">
Microscope Cameras for high-resolution image and video capture, including HD and 4K imaging options.
</li>
<li data-section-id="1om3e0r" data-start="132" data-end="232">
Photo Port Adapters and Camera Tubes for connecting digital cameras to compatible microscopes.
</li>
<li data-section-id="115dwii" data-start="233" data-end="331">
Microscope Adapters designed to support a wide range of imaging and mounting configurations.
</li>
<li data-section-id="1lr2i0i" data-start="332" data-end="437">
LED Illuminators that enhance specimen visibility and image quality across microscopy applications.
</li>
<li data-section-id="wc9g2" data-start="438" data-end="548" data-is-last-node="">
Digital Imaging Accessories that enable documentation, image analysis, teaching, and research workflows.
</li>
</ul>
&nbsp;
<h2>How to Choose Microscope Accessories</h2>
&nbsp;
Digital cameras and adapters
Microscope cameras attach to the trinocular port (or monocular camera port on some models) via a C-mount camera adapter with an integrated relay lens. The relay lens magnification (typically 0.35x, 0.5x, or 1x) determines the effective field of view on the camera sensor. Choose a CMOS camera with 5 to 20 megapixels for brightfield documentation and routine fluorescence; scientific CMOS (sCMOS) or cooled CCD cameras for low-light fluorescence quantification. Confirm the camera software is compatible with the microscope's control software (if motorized).
Objective lenses
Replacement or additional objectives must match the microscope's objective thread standard and tube length (160 mm finite or infinity-corrected). Never mix finite-optics and infinity-corrected objectives on the same nosepiece; the image-forming properties are incompatible. Plan-apochromat objectives in the same brand family as the microscope are the safest choice for optical performance and parfocality with the existing objective set.
Fluorescence filter cube sets
Fluorescence filter cubes contain an excitation bandpass filter, a dichroic mirror, and an emission bandpass filter, which are the three components that define which fluorescent dye or protein is imaged. Common filter sets: DAPI (Ex 360/40, Di 400LP, Em 460/50); FITC/GFP (Ex 470/40, Di 495LP, Em 525/50); TRITC/mCherry (Ex 550/25, Di 565LP, Em 605/70); Cy5 (Ex 620/60, Di 660LP, Em 700/75). Confirm the cube block type (Olympus U-MF2, Nikon B-2A, Zeiss 38HE, or other) matches the filter cube turret of the specific microscope model.
Stage inserts and sample holders
Stage inserts expand sample compatibility: multiwell plate holders (96-well, 384-well, 6-well) for high-content imaging; glass-bottom dish holders for live-cell imaging with oil-immersion objectives; slide holder adapters for larger or smaller slide formats; and universal stage inserts for non-standard containers. Confirm the stage insert dimensions match the microscope's mechanical stage cutout and that the height profile is compatible with the condenser working distance for transmitted illumination.
LED fluorescence modules
LED fluorescence modules replace or augment mercury arc lamps in the fluorescence port of existing microscopes, providing individual LED channels for DAPI, GFP, TRITC, and Cy5 excitation. LED upgrades are available as bolt-on add-ons for many research-grade inverted and upright microscopes and significantly extend the fluorescence illumination service life from 200 to 300 hours (mercury) to 50,000+ hours (LED). Confirm the LED module's mounting standard and control interface (USB, TTL, or software-triggered) is compatible with the microscope.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Immersion oil for oil-immersion microscopy must match the refractive index for which the objective is designed; standard immersion oil has a refractive index of 1.515 at 23 degrees C (per ASTM and DIN standards). Using oils with different refractive indices introduces spherical aberration. Viscosity matters for the application: low-viscosity oils (Type A, 150 mPas) spread easily and are used for fast scanning; high-viscosity oils (Type B, 1250 mPas) resist creep at elevated stage temperatures. Clean all residual immersion oil from objectives immediately after each use with lens tissue dampened with appropriate lens cleaning solution; dried immersion oil is difficult to remove and can permanently damage the objective coating.&nbsp;
&nbsp;
To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

Microscope Adapters

The EAE-5130 Microscope Adapter by Euromex is a universal SLR adapter for 23.2 mm trinocular photo ports with a built-in 2× optical lens for APS-C DSLR cameras — compatible with NexiusZoom, StereoBlue, and Delphi-X Observer models; requires a brand-specific T2 ring (sold separately).

Universal SLR adapter with built-in 2x lens for standard 23.2mm tube. Needs T2 adapter

T2 ring for Nikon D SLR digital camera

T2 ring for Canon EOS SLR digital camera

ELE-1973-Microscopes Catalog

ELE-5207-Microscopes Catalog

Microscope Illuminators

The ELE-1973 by Euromex is a 144-LED ring illuminator for stereo microscopes, delivering 23,000 lux at 100 mm, 6,500 K color temperature, 4-zone independent segment control, 25–61 mm inner ring diameter, 55–200 mm working distance, and 100–240V AC / 12V DC input — controlled via separate remote.

Ring illuminator with 144 LEDs with adjustable light intensity. External power supply 100-240VAC /  12VDC (50/60 Hz). With segment controller. Brightness of 23,000 Lux at 100mm distance and color temperature of 6500K. Mounting for stereo head with diameter from 25 to 61mm

Euromex Dual LED illuminator

United States

Texas

mbpinc