Brands

Overhead Stirrers Accessories

<h2>What Are Overhead Stirrer Accessories?</h2>
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Overhead stirrer accessories are modular components that attach to an overhead stirrer motor unit to adapt it for specific applications, vessel formats, and chemical conditions. The core accessories are impellers (the mixing head), drive shafts (which connect the motor to the impeller), chuck or collet adapters (which secure the shaft in the motor's output), and support stands with clamps or crossbar assemblies that position the motor above the vessel at the correct height. Additional accessories include vessel holders and clamp stands for securing round-bottom or Erlenmeyer flasks during mixing, PTFE sleeves for shaft sealing in closed-vessel applications, and digital speed display controllers that retrofit onto analog motor units. Because overhead stirrer motor chucks accept shafts within a defined diameter range (commonly 6 mm, 8 mm, 10 mm, or 12 mm), confirm shaft diameter compatibility with the motor before ordering any impeller-and-shaft combination. Before ordering any accessory, confirm three things: motor chuck bore diameter, required shaft length for your vessel depth, and whether the impeller geometry matches the flow regime your application needs.
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<h2>What You Will Find:</h2>
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<ul>
<li>Stainless steel and PTFE (Teflon&reg;) propellers compatible with overhead stirrers for a variety of mixing applications.</li>
<li>One-line propellers designed for efficient agitation in low- to medium-viscosity liquids.</li>
<li>Paddle propellers with flat holes for enhanced fluid circulation and blending performance.</li>
<li>Centrifugal impellers that promote radial flow and effective mixing of liquid samples.</li>
<li>Four-arm propellers available in stainless steel or PTFE for versatile stirring across diverse laboratory workflows.</li>
</ul>
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<h2>How to Choose Overhead Stirrer Accessories</h2>
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Impeller geometry
Impeller type determines mixing regime and is the primary accessory selection decision. Propeller impellers (two- or three-blade marine propeller) generate axial flow, drawing fluid from above and directing it downward, suited for general liquid blending, cell suspension, and low-viscosity mixing. Paddle and anchor impellers sweep tangentially near the vessel wall, appropriate for high-viscosity materials that resist axial flow. Dispersing disc impellers (flat disc with serrated edge or teeth) generate radial high-shear flow for emulsification, pigment dispersion, and fine particle suspension. Ribbon impellers are used for highly viscous, thickening batches where conventional impellers fail to move material from the vessel walls.
Shaft length and diameter
The shaft length must extend from the motor chuck to the correct immersion depth in the vessel. Standard lengths range from 200 mm to 600 mm; longer shafts are available for deep vessels or pilot-scale bioreactors. Shaft diameter must fit within the motor's chuck bore (confirm before ordering). Thicker shafts (10 mm to 12 mm) are more rigid and reduce wobble at high speed; thin shafts (6 mm) suit small-volume vessels and lower-torque motors.
Material: stainless steel vs. PTFE
Stainless steel (316L is preferred for chemical resistance over 304) is the standard for shafts and impellers in aqueous buffers, culture media, alcohols, and mild organic solvents. PTFE shafts and impellers are required for corrosive acids, bases (concentrated NaOH, HCl, HF), halogenated solvents, and any application where metal ion contamination of the sample must be avoided. Stainless steel and PTFE impellers are not interchangeable from a torque-transfer standpoint; PTFE is softer and suitable for lower-torque applications.
Support stands and clamps.
Support stands must be rigid enough to prevent shaft wobble at maximum operating speed. Confirm that the stand's vertical travel range accommodates the vessel height plus the motor unit. Crossbar clamp assemblies allow the motor unit to be raised and lowered without removing the shaft from the vessel. Heavy-duty stands with a wide base footprint are recommended for motors above 40 Ncm and for operation above 500 rpm.
Chuck and collet adapters
Motors accept shafts with a specific bore range. Collet adapters reduce or increase the effective chuck bore to fit a different shaft diameter. Confirm the motor's chuck diameter (manufacturer-specific) and the shaft outer diameter before ordering a collet or chuck adapter; a mismatched fit can cause shaft slippage during mixing.
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<h2>Specifications Context</h2>
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Impeller diameter should be 30 to 50% of the vessel inner diameter for most mixing regimes. A blade diameter that is too small leaves dead zones at the vessel wall; too large generates excessive shear and can damage shear-sensitive samples. For autoclave-compatible setups, confirm that the shaft, impeller, and any sealing sleeve are rated for 121 degrees C steam sterilization. Shaft straightness should be verified at the stated operating speed; a bent or unbalanced shaft generates vibration that compounds with any sample viscosity increase to stress the motor bearings.&nbsp;
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Looking for the right propeller for your process? Explore our overhead stirrer accessories and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote today.

Overhead Stirrer Accessories

Optional propeller, Teflon paddle with flat holes

IPS2050-P-T3 by Benchmark Scientific is a PTFE-coated flat paddle propeller with three holes, measuring 350 mm long with a 68 mm blade diameter and a 6 mm shaft, compatible with the Benchmark OS-20L and OS-40L overhead stirrers. The flat-hole paddle geometry produces low-shear axial flow for gentle to mid-speed mixing of corrosive, protein-containing, or foam-sensitive fluids where metal-free contact and minimal turbulence are required.

Length

Diameter

Shaft Diameter

Material

Manufacture

Optional propeller, stainless steel centrifugal impeller

The IPS2050-P-S2 by Benchmark Scientific is a 316 stainless-steel centrifugal impeller propeller (400 mm length, 90 mm diameter) for the Benchmark Scientific OS-20L and OS-40L overhead stirrers, designed for mid- to high-speed mixing in small-mouth, round-bottom flasks.

Optional propeller, stainless steel one line

IPS2050-P-S1 by Benchmark Scientific is a 316 stainless steel one-line (single flat-blade) propeller, 400 mm long with a 60 mm blade diameter and an 8 mm shaft, designed for low-viscosity, mid-to-high-speed mixing on the Benchmark OS-20L and OS-40L overhead stirrers. The single-blade axial flow pattern suits rapid buffer homogenisation, reagent dissolution, and suspension maintenance in aqueous process fluids up to 20 L capacity.

Optional propeller, stainless steel paddle with flat holes

IPS2050-P-S3 by Benchmark Scientific is an optional stainless steel flat paddle propeller with 3 flat holes for the Benchmark IPS2050 OS-20L and OS-40L overhead stirrers. Designed for gentle, mid to low-speed mixing, its paddle geometry minimizes shear stress — suited for fragile cell suspensions, viscous samples, and slow-dissolution applications where the standard 4-arm propeller would cause damage or foaming.

Microcentrifuge Accessories

<h2>What Are Microcentrifuge Accessories?</h2>
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Microcentrifuge accessories maintain performance, extend tube-format versatility, and ensure safe operation of benchtop microcentrifuges. These include replacement fixed-angle rotors for 12&ndash;24 &times; 1.5/2.0 mL tube positions, tube adapters for 0.5 mL and 0.2 mL formats, aerosol-tight sealed rotor lids for biocontainment of infectious specimens, balance tubes for partial-load runs, and specialty rotors for PCR strips or 5.0 mL tubes where supported by the centrifuge model. All microcentrifuge accessories are model-specific, as rotor coupling systems and tube bore dimensions differ between manufacturers and even between models within the same brand, making exact model verification essential before ordering.
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<h2>What You Will Find:</h2>
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<ul>
<li>High-quality adapters and rotors for precise and reliable tube fit</li>
<li>Multiple formats including PCR strips, microtubes, plates, and spin columns</li>
<li>Specialized and high-capacity rotors for enhanced compatibility</li>
<li>Swing-out and sealed options for reliable and contamination-free processing</li>
</ul>
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<h2>How to Choose Microcentrifuge Accessories</h2>
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Replacement Rotor Identification
The rotor model number is typically printed on the rotor body or listed in the centrifuge user manual. Cross-reference it with the manufacturer's accessory catalog to confirm that the coupling system matches the centrifuge motor shaft. For standard 12-position rotors, verify compatibility with both 1.5 mL and 2.0 mL microtubes.
Tube Adapter Sizing
For 0.5 mL adapters, ensure the outer diameter closely matches the rotor bore so the tube remains secure during operation. For 0.2 mL adapters, confirm that PCR tubes are positioned correctly to achieve the intended centrifugal force while maintaining stability throughout the run.
Aerosol-Tight Sealed Lids
Choose sealed lids rated for the rotor's maximum operating RCF. O-rings should be inspected regularly for flattening, cracking, or discoloration and replaced immediately if any signs of wear appear. Maintaining replacement O-rings for frequently used lids helps ensure continued safe operation.
Specialty Rotors
Some microcentrifuge models support optional rotors for 5.0 mL tubes, PCR strips, or microplates. These accessories expand workflow flexibility but may operate at lower maximum RCF values than standard 1.5 mL rotors. Always verify the rated speed and force limits before use.
Balance Tubes
Balance tubes help maintain proper rotor balance during partial-load runs. They should closely match the mass and dimensions of the sample tubes being processed. Proper balancing reduces vibration, minimizes bearing wear, and supports long-term centrifuge performance.
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<h2>Specifications Context</h2>
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Many modern fixed-angle rotors and polypropylene adapters are autoclavable, although specific sterilization requirements vary by manufacturer and material. Always follow the OEM maintenance and decontamination guidelines for each accessory. Rotor service life is generally determined by cumulative operating hours and manufacturer recommendations rather than visual appearance alone.
Sealed rotor lid systems with one-touch release mechanisms have become standard in modern molecular diagnostic laboratories, providing improved safety, easier maintenance, and enhanced biocontainment for regulated workflows.
Stop wasting time searching. The best microcentrifuge accessories are right here at MBP Products. <a href="https://mbpinc.net/contact-us">Connect with our expert team</a> to get your equipment accessories today.

Optional rotor with carriers for deep well plates up to 35mm tall (speed: 1500rpm)

C2000-DWMP by Benchmark Scientific is an optional rotor with carriers for the C2000 PlateFuge&#8482; MicroPlate MicroCentrifuge, rated to 1,500&nbsp;rpm, designed to spin deep well plates up to 35&nbsp;mm tall. It replaces the standard C2000 rotor for deep-well plate centrifugation in nucleic acid extraction, protein precipitation, and high-throughput liquid handling workflows.

Laboratory Aspirator Accessories

<h2>What Are Laboratory Aspirator Accessories?</h2>
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Laboratory aspirator accessories are the consumable and replacement components that keep a benchtop vacuum aspirator operating safely and efficiently. These include hydrophobic/antibacterial in-line filters, 2-liter polycarbonate collection bottles with overflow protection, silicone tubing, and handheld aspiration tools with adapters.
The in-line filter is the most critical safety component, acting as the primary barrier between biohazardous waste and the vacuum pump. Tubing and collection bottles are regularly replaced to maintain performance and prevent contamination or leaks during operation.
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<h2>What you will find:</h2>
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<ul>
<li>Hydrophobic filters: for controlling contamination and system protection</li>
<li>Single-channel adapters: for precise aspiration tasks</li>
<li>Multi-channel adapters: for higher performance output</li>
<li>Handheld vacuum controllers: for controlled liquid removal</li>
<li>Silicone tubing sets: for flexible connection of the system</li>
<li>Quick disconnect kits: for easy setup and maintenance</li>
<li>Collection bottles: with lids for safe liquid storage</li>
<li>Silicone O-rings: for secure sealing and preventing leaking</li>
</ul>
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<h2>How to Choose Laboratory Aspirator Accessories</h2>
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In-Line Filter Replacement
Replace the in-line filter immediately if it becomes wet, discolored, or saturated. A compromised filter can no longer block aerosols effectively and may allow contamination to reach the pump system. Always use OEM-compatible filters to ensure proper fit and hydrophobic performance.
Collection Bottle Condition
Inspect collection bottles regularly for cloudiness, cracks, or malfunctioning overflow valves. Replace bottles that show wear or damage to maintain safe waste containment. Avoid using solvents that may degrade polycarbonate material.
Tubing Integrity
Silicone tubing should remain flexible and free from kinks or permanent deformation. Replace tubing when it becomes stiff, damaged, or no longer forms secure connections. Autoclaving is typically supported, but repeated use may require periodic replacement.
Handpiece and Adapter Selection
Ensure handpieces and adapters match your application needs. Standard tip adapters are used for general aspiration, while fine stainless-steel capillary tips are required for microplate and precise liquid removal tasks.
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<h2>Specifications Context</h2>
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Modern laboratory aspirator systems use oil-free vacuum pumps with adjustable pressure ranges, hydrophobic in-line filters, and overflow-protected collection bottles to ensure safe and reliable liquid handling. These systems are widely used in cell culture, clinical workflows, and general laboratory applications.
Routine replacement of consumables such as filters, tubing, and bottles is essential for maintaining performance, preventing contamination, and extending instrument lifespan. Using manufacturer-approved accessories ensures compatibility and consistent operation.
 Grab the best quality laboratory aspirator accessories today. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;"> Contact the expert team </a> of Molecular Biology Products (MBP) now.

Optional single channel adapter, extra long (80mm) stainless steel

V1002-1SL by Benchmark Scientific -- extra-long 80 mm stainless steel single-channel adapter (Adapter D) for the Aspire? V0020 Lab Aspirator and V1002 Handheld Controller. Twice the reach of the standard 40 mm Adapter C; ideal for 50 mL conicals, deep-well plates, and narrow-neck bottles.

Homogenizer Accessories

<h2>What are homogenizer accessories?</h2>
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Homogenizer accessories are the interchangeable tools, replacement parts, and supporting vessels and hardware that enable a laboratory homogenizer to be used across different sample volumes, sample types, and processing conditions beyond what the base instrument alone provides. For rotor-stator homogenizers, the critical accessories are the generator head and dispersing tool (the probe tip with rotating blade inside a stator tube), available in different sizes to match different sample volumes. For ultrasonic probe homogenizers, the primary accessories are the sonic probe tip or microtip, which is the consumable component that transmits ultrasonic energy and eventually wears or fatigues. Additional accessories include cleaning stations, jacketed vessels for temperature control, and support stands.
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<h2>What you will find:</h2>
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<ul>
<li>Rotor-stator homogenizer generator probes</li>
<li>Rotor-stator homogenizer probe tips and microtips</li>
<li>Bead kit and bead grinding media for bead mill homogenizers</li>
<li>Sample tube adapters and holders for homogenizers</li>
<li>Stands, clamp attachments, and supports</li>
<li>Cup horns and flow cells for ultrasonic homogenizers</li>
<li>Sound chamber enclosures for noisy ultrasonic homogenizers</li>
<li>Seals and other replaceable homogenizer parts </li>
</ul>
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<h2>How to choose homogenizer accessories</h2>
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Match the generator head size to your sample volume
Rotor-stator generator heads (dispersing elements) are designed for specific volume ranges: the S10N generator head suits 0.5&ndash;30 mL, S18N suits 5&ndash;150 mL, and S25N suits 50&ndash;500 mL volumes in common IKA Ultra-Turrax style instruments. Processing a 2 mL sample with a large S25N head gives poor energy density; processing 200 mL
Check ultrasonic probe tip diameter against the sample vessel and volume
Ultrasonic probe homogenizer tips are available in standard (12.7&ndash;19 mm) and micro (3&ndash;6 mm) diameters, with the micro-tip providing higher acoustic intensity for small volumes and the standard tip covering larger volumes. The tip diameter should be approximately 1/4 to 1/3 of the diameter of the sample container for effective cavitation throughout the sample.
Replace ultrasonic probe tips before pitting becomes severe
Ultrasonic probe tips erode at the vibrating face through cavitation, and a pitted tip delivers less energy, generates metal particles contaminating the sample, and risks mechanical failure. Inspect the tip face regularly for pitting and replace at the first signs of significant erosion to maintain energy delivery.
Use a water-jacketed vessel for temperature-sensitive samples
Water-jacketed homogenization vessels circulate cold water around the sample vessel during homogenization, limiting the temperature rise in the sample from frictional and ultrasonic heating. This is particularly important for enzyme preparations, RNA isolation, and other applications where sample heating above a few degrees above ambient can cause degradation.
Invest in a probe cleaning station for high-throughput work
Probe cleaning stations hold cleaning and rinse solutions in sequence for rapid cleaning between samples, reducing cleaning time and ensuring consistent decontamination in labs processing many samples per session compared with manual cleaning.
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<h2>Specifications context</h2>
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Ultrasonic probe tip replacement is a consumable cost, with tip lifespan typically 50&ndash;200 hours before pitting degrades performance. Manufacturers specify replacement tip models compatible with each horn assembly; non-specified tips risk poor energy coupling or damage. Titanium alloy probe tips remain the standard material for their combination of acoustic properties, corrosion resistance, and fatigue resistance under repeated ultrasonic cycling.
<a href="https://mbpinc.net/contact-us">Contact us to receive a quotation</a> on our homogenizer accessories from our expert staff at Molecular Biology Products Inc.

Optional tube holder, 12x5ml tubes

D2400-R5V2 by Benchmark Scientific is a metal-ring tube holder for 12 × 5 mL screw-cap tubes, designed for the BeadBlaster™ 24 and BeadBlaster 24R microtube homogenizers (D2400 / D2400-R). Expands the BeadBlaster 24 platform to handle 5 mL tube format without additional instrument investment. Order via <a href="/quickorder">Quick Order</a> at mbpinc.net or email customerservice@mbpinc.net.

Electrophoresis System Accessories

Orange filter cover for mini LED transilluminator

E1200-OC by Accuris is the orange filter cover for the E1200 and E1201 myGel InstaView mini LED transilluminators. It blocks the 465 nm blue LED emission to enable safe, eye-protective DNA band viewing and gel band excision without additional safety glasses. Sold as one filter cover; can be positioned flat or angled over the illumination surface.

Imaging and Gel Visualization Accessories

Orange viewing cover

E5001-OC by Benchmark Scientific (Accuris) is the 18 × 18 cm orange PMMA viewing cover for the SmartDoc™ 2.0 gel imaging system. The orange PMMA material absorbs blue light from the SmartDoc 2.0's LED illuminator, enabling safe gel visualization and photography without UV goggles. The cover can be angled forward for direct gel access during band excision. Available as a replacement for the cover included in the E5001-SDB complete system.

Orbital Shaker

<h2>What are orbital shakers?</h2>
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Orbital shakers are laboratory mixing platforms that move their platform surface in a horizontal circular (orbital) motion at controlled speed, agitating the contents of vessels clamped or placed on the platform by inertial forces as the platform traces a circular path. The circular orbit creates a mixing pattern in flask liquids that promotes oxygen transfer from the headspace into the culture broth, which is the rate-limiting step for aerobic bacterial and yeast cultures grown in shaking flasks. Orbital shaker speed, orbit diameter, and fill volume together determine the mixing intensity and oxygen transfer rate in a culture.
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<h2 dir="ltr">What You Will Find:</h2>
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<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/equipments/agitation-equipment/orbital-shakers/orbital-shaker-accessories">Orbital Shaker Accessories:</a> A comprehensive range of universal spring platforms, adjustable roller bars for non-standard vessels, stacking decks, and toolless MAGic Clamp&trade; magnetic holders for flasks and microplates.
</li>
</ul>
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<h2>How to choose an orbital shaker</h2>
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Choose an incubated orbital shaker for bacterial, yeast, or mammalian culture
Incubated orbital shakers maintain above-ambient temperature inside an integrated chamber, allowing cultures to grow at their optimum temperature while being agitated. This format is commonly used for microbial culture, protein expression, fermentation screening, and other temperature-controlled applications.
Choose a refrigerated shaker for cold-temperature incubation or hybridization
Refrigerated orbital shakers maintain temperatures below ambient, typically from approximately 4&deg;C to room temperature, making them suitable for enzyme reactions, nucleic acid hybridization, and other temperature-sensitive workflows requiring agitation.
Match orbit diameter to your flask size and culture volume
Orbital shakers are available with different orbit diameters, commonly 1 cm, 2 cm, 3 cm, and 5 cm. Smaller orbits are generally used for smaller flasks and lower volumes, while larger orbits provide increased liquid movement and aeration for larger flasks and higher culture volumes.
Select a speed range appropriate for your application
Different applications require different shaking speeds. Microbial culture often operates at higher speeds to support oxygen transfer, while hybridization, staining, and washing procedures typically require gentler agitation. Selecting a shaker with a broad speed range increases flexibility across applications.
Confirm platform size and maximum load capacity
Platform dimensions determine how many flasks, bottles, or microplates can be processed simultaneously. Maximum load capacity should accommodate the combined weight of vessels and media to ensure stable operation during continuous shaking.
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<h2>Specifications context</h2>
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The oxygen transfer rate in a shaking flask depends on shaking speed, orbit diameter, flask geometry, and fill volume. Appropriate combinations of these variables improve mixing efficiency and culture performance. Stackable orbital shakers remain a common solution for laboratories that require multiple simultaneous culture conditions while conserving bench and floor space.
Ready to stabilize your shaking protocols? Explore our digital orbital shakers and dynamic platform accessories, and <a href="https://mbpinc.net/contact-us">contact the MBP team</a> for a quote today.

Orbital Shakers

Product literature

Stacking Platform, extra large 14"x12" with flat mat (3.0" separation)

Orbi-Blotter™ with non-slip rubber mat platform (14x12") Accessories

Orbi-Blotter™ with non slip rubber mat platform

The Benchmark Orbi-Blotter™ Series by Benchmark Scientific is a 3–70 RPM variable-speed orbital shaker with a 19 mm orbit, 14×12 in non-slip rubber mat platform, and 4 kg capacity — designed for Western blot washing, gel staining/destaining, and membrane incubation. The brushless motor operates in incubators and cold rooms (115 V or 230 V); 2-year warranty included. Available as BT30 (115V) and BT30-E (230V).

Speed Range

Orbit

Platform Size

Load Capacity

Ambient Operating Temp

Dimensions (in)

Dimensions (cm)

Weight

Electrical

Power

Warranty

Orbi-Blotter™ with non slip rubber mat platform(14x12"), 115V

Orbi-Blotter™ with non slip rubber mat platform(14x12"), 230V

Brochure

MAGic Clamp 3D Demonstration

Orbi-Shaker™ CO2 with remote controller and rubber mat platform (13"x12")

The Orbi-Shaker CO2 Orbital Shaker Series by Benchmark Scientific is the Orbi-Shaker™ CO2 — an orbital shaker built for continuous operation inside CO2 incubators. Speed range 30–300 rpm, 19 mm orbit, 13"×12" rubber mat platform (1×2 L or 5×1 L flask capacity), operating range 0–65°C / 100% humidity. Includes touch-screen remote controller. 115V or 230V, 2-year warranty. Available models: BT4001, BT4001-E.

Speed Increment

Timer

Operating Temp. Range

Cord Lenght

Orbi-Shaker™ CO2 with remote controller and rubber mat platform (13"x12"), 115V

Orbi-Shaker™ CO2 with remote controller and rubber mat platform (13"x12"), 230V

Product Literature

Orbi-Shaker™ CO2-MP with remote controller

The Benchmark Orbi-Shaker™ CO2-MP Series by Benchmark Scientific is an orbital microplate shaker for continuous use inside CO2 incubators, holding up to 6 microplates (standard or deep-well) on a 13 × 12 inch platform at 200–1,200 RPM with a 2 mm orbit. Rated 0–65°C and 100% humidity; includes a magnetic remote controller for external incubator operation. Dimensions 30 × 34 × 9 cm; weight 11.5 kg; 115V or 230V (BT4500-E), 600W; 2-year warranty. Available as BT4500 (115V) and BT4500-E (230V).