Brands

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
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Universal centrifuge accessories are the interchangeable components that determine the range of applications a universal centrifuge can perform. These include swing-out rotor buckets for blood tubes, conical tubes, microplates, and large bottles; fixed-angle rotors for high-speed pelleting; hematocrit and cytospin rotors; tube adapters; and aerosol-tight bio-containment lids. Selecting the appropriate accessories allows a single centrifuge to support multiple laboratory workflows efficiently and safely.
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<h2 dir="ltr">What you will find:</h2>
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Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
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Fixed-angle and swing-out rotors for varied centrifugation applications
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Lids and sealed buckets for safe and reliable operations
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PCR adapters and microplate carriers for high-throughput workflows
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Centrifuge tubes, holders, and supporting aids for efficient and complete setups
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<h2>How to Choose Universal Centrifuge Accessories</h2>
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Swing-Out Bucket Selection by Application
Choose swing-out buckets according to the sample formats used in your laboratory. Blood tube buckets support routine clinical applications, conical tube buckets are suitable for cell culture and molecular biology, microplate carriers enable high-throughput workflows, and large-bottle carriers accommodate large-volume sample processing.
Fixed-Angle Rotors
Fixed-angle rotors provide higher centrifugal forces for microtube, PCR tube, and small-volume sample processing. Ensure that both the rotor and centrifuge motor specifications support the required operating speeds and sample formats.
Cytospin Clip Rotors
Cytospin rotors are designed for preparing microscope slides from low-cellularity samples such as body fluids. Verify compatibility with the required funnel sizes and use bio-containment features when processing potentially infectious materials.
Bio-Containment Lids
Aerosol-tight lids help contain biological samples during centrifugation and support safe laboratory practices. Regular inspection of sealing components and O-rings ensures reliable containment and long-term performance.
Reducing Adapter Inserts
Adapter inserts allow smaller tubes to fit securely within larger bucket positions. Using properly matched adapters improves balance, prevents movement during operation, and helps maintain consistent centrifugation results.
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<h2>Specifications Context</h2>
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Modern universal centrifuge systems support interchangeable accessory configurations that enable rapid transitions between clinical, research, cell culture, and cytology workflows. Swing-out buckets, fixed-angle rotors, and microplate carriers provide flexibility while maintaining compatibility with a broad range of vessel formats.
Routine inspection and maintenance of accessories, including adapters, lids, and sealing components, help ensure safe operation and extend equipment lifespan. Advances in bio-containment systems and modular rotor designs continue to improve laboratory efficiency and versatility.
Time to upgrade your universal centrifuge accessories. <a href="https://mbpinc.net/contact-us">Contact the expert team </a>of Molecular Biology Products Inc. (MBP) and the find perfect match today.

10 x 50ml conical insert for Z496-1000-RBUK 2/pk

The Z496-1000-A50 by Hermle is a 2-pack of 50 ml conical tube inserts (10 tubes per insert) for the Z496-1000-RBUK rectangular bucket on the Z496-K centrifuge, enabling batch runs of up to 40 x 50 ml tubes at 4,200 rpm / 3,964 xg.

Manufacture

10 x 50ml round bottom insert for Z496-1000-RBUK 2/pk

Z496-1000-A50R by Benchmark Scientific is a 10 × 50 ml round-bottom tube insert for the Z496-1000-RBUK rectangular swing-out bucket on Hermle Z496-K and Z496-K-UC centrifuges, rated to 4,200 RPM / 3,964 × g. Sold 2 inserts per pack. Order at mbpinc.net/quickorder or contact <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a>.

10-15ml round insert for 85ml rotor, 2/pk.

The Z326-85-A15R by Hermle is a 2-pack of 10-15 ml round-bottom tube inserts for the Hermle Z326-0685 (6 x 85 ml) fixed-angle rotor on Z326/Z326K/Z32-HK/Z36-HK/Z366 centrifuges. Enables smaller-volume round-bottom tube runs in the 85 ml rotor without a rotor change.

Kingfisher Plastics

<h2 data-section-id="144nuix" data-start="0" data-end="40">What Are KingFisher Flex Consumables?</h2>
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KingFisher Flex consumables are specialized plates, tip combs, and accessories designed specifically for Thermo Scientific KingFisher magnetic particle processors, including the KingFisher Flex, Apex, Duo Prime, and Presto systems. These consumables are engineered to support automated magnetic bead-based purification workflows for DNA extraction, RNA isolation, protein purification, cell isolation, and other molecular biology applications. Their precise dimensions and well geometries ensure accurate magnetic rod movement, efficient bead transfer, and consistent purification results across high-throughput laboratory workflows.
Unlike standard deep well plates, KingFisher consumables are manufactured from low-binding polypropylene to minimize the loss of nucleic acids and proteins during extraction and washing steps. This helps maximize sample recovery, improve purity, and maintain reproducibility in research, clinical diagnostics, biobanking, and next-generation sequencing (NGS) applications.
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<h2 dir="ltr">At MBP, You can discover:</h2>
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6 Deep-Well Plates for KingFisher Flex and Presto systems
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24-Well Deep Well Plates for high-volume extraction
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96-Format Plastic Tip Combs for magnetic bead collection
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U-bottom Square Well Plates for minimal volume
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10.4 ml 24-well plates for large-scale purification
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Medical-grade Polypropylene Plates for chemical stability
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Sterile, DNase/RNase-free consumables for sensitive assays
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High-recovery extraction plates for maximum specimen yield
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<h2 data-section-id="1h779p8" data-start="1262" data-end="1306">How to Choose KingFisher Flex Consumables</h2>
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Instrument Configuration
Consumable selection depends on the instrument model and processing head installed. Most KingFisher Flex systems use a 96-well head designed for medium-throughput sample processing, while certain applications require a 24-well head for larger sample volumes. Always verify your instrument configuration before ordering consumables.
Sample Volume Requirements
The 96-well format is ideal for routine DNA and RNA extraction from blood, plasma, swabs, tissue lysates, and cultured cells. Applications requiring larger input volumes, such as circulating cell-free DNA isolation, environmental testing, or stool sample processing, often use the 24-well format, which accommodates significantly larger volumes per well.
Sterility Requirements
Non-sterile consumables are commonly used for standard nucleic acid purification and protein extraction workflows. Sterile plates and sterile plate-tip comb combination packs are recommended for cell-based applications, sensitive RNA workflows, and any procedure requiring aseptic processing conditions.
Individual Components vs. Combination Packs
Many laboratories purchase plates and tip combs separately to match workflow requirements. Combination packs containing both sterile plates and matching sterile tip combs simplify inventory management and ensure compatibility between components.
Downstream Application
For PCR, qPCR, sequencing, and library preparation workflows, purified samples are typically transferred into 96-well microplates with smaller working volumes. Applications requiring larger elution volumes may use deep well plates for the final collection step.
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<h2 data-section-id="1jl751w" data-start="3463" data-end="3488">Specifications Context</h2>
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KingFisher consumables are manufactured from high-purity, low-binding polypropylene to reduce non-specific adsorption of DNA, RNA, proteins, and magnetic beads. They are produced under strict quality control standards to ensure dimensional consistency and compatibility with automated magnetic particle processors.
These consumables are widely used in molecular diagnostics, genomics, biobanking, pharmaceutical research, and clinical laboratories. Their standardized design supports reproducible extraction performance while maintaining compatibility with automated sample preparation workflows.
For laboratories requiring more general automation-compatible sample processing plates, deep well plates provide SBS-format compatibility with liquid handling systems from Hamilton, Tecan, Beckman Coulter, and other automation platforms. Immunoassay and ELISA workflows, however, require specialized assay plates designed for optical detection rather than magnetic bead processing.&nbsp;
Lock your combs, load your plates, and let the automation handle the precision. Request a quote from <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">the team at Molecular Biology Products Inc</a> today.

Kingfisher Flex Consumables

10.4 ml 24-well Deep Well Plate, U-Bottom, Square well, non-sterile, 5/pk, 50/cs

504302 is a 24-well deep well plate with 10.4 mL per-well capacity, U-bottom square wells, non-sterile, in SBS-standard footprint. Suitable for high-volume extraction, microbial culture, and compound dilution workflows. Supplied 5/pk, 50/cs.

Manufacturer

Cryo Boxes

<h2>What Are Cryo Boxes?</h2>
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Cryo boxes are lidded, gridded storage containers designed to organize cryogenic vials, microcentrifuge tubes, and centrifuge tubes inside ultra-low temperature (ULT) freezers at &minus;80&deg;C, vapor-phase liquid nitrogen refrigerators (&minus;150 to &minus;190&deg;C), and cryogenic dewars. The two primary materials are water-resistant coated cardboard (economical, single-use) and rigid polycarbonate or polypropylene (reusable, autoclavable, transparent). Standard well configurations&mdash;25 (5&times;5), 81 (9&times;9), and 100 (10&times;10)&mdash;in 2-inch and 3-inch box heights match common cryogenic vial sizes. The alphanumeric grid on the lid helps with sample tracking in LIMS systems. Cardboard cryo boxes are vapor-phase LN2 rated only; polycarbonate is required for autoclave use or liquid-phase LN2 immersion.
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<h2>What you will find:</h2>
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&bull; Standard cryo boxes for cryogenic vial storage &bull; Freezer storage boxes for ultra low temperature use &bull; Cardboard cryo boxes for cost effective storage &bull; Polypropylene cryo boxes for durability and reuse &bull; Grid format boxes for easy sample organization &bull; Hinged lid cryo boxes for quick access &bull; Color coded storage boxes for sample identification &bull; Cryo storage boxes for 1.5 mL and 2.0 mL vials
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<h2>How to Choose Cryo Boxes</h2>
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Material: Cardboard vs. Polycarbonate vs. Polypropylene
Cardboard cryo boxes are economical and used for long-term storage at &minus;80&deg;C or vapor-phase LN2. They are single-use and not autoclavable. Polycarbonate (PC) boxes are durable, transparent, and autoclavable at 121&deg;C, making them suitable for frequent handling. Polypropylene (PP) boxes also tolerate autoclaving and offer higher chemical resistance than PC. Choice depends on reuse frequency and sterilization needs.
Well Count and Vial Size
81-well (9&times;9) boxes fit standard 1.8&ndash;2.0 mL cryogenic vials up to ~13 mm outer diameter. 100-well (10&times;10) boxes are used for smaller 1.2&ndash;1.5 mL vials and microcentrifuge tubes up to ~12 mm OD. Always match vial diameter with box well size before ordering.
Box Height: 2-Inch vs. 3-Inch
2-inch boxes are standard for 1&ndash;2 mL cryovials and are most commonly used in biobanking. 3-inch boxes are for larger 3&ndash;5 mL vials and certain centrifuge tubes where extra depth is required.
LN2 Phase Compatibility
Both cardboard and hard-wall boxes can be used in vapor-phase LN2. Only polycarbonate or polypropylene boxes should be used for liquid-phase LN2 because cardboard can break down when submerged.
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<h2>Specifications Context</h2>
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Cryo boxes are typically rated from &minus;196&deg;C to +121&deg;C depending on material. Cardboard is suitable for vapor-phase LN2 only, while hard-wall plastic boxes can handle more demanding workflows. Proper selection depends on vial size, storage temperature, and how frequently samples are accessed.
Eliminate the risk of thermal damage. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Connect with the experts at Molecular Biology Products Inc.</a> to find the perfect storage solution for your high-value specimens.

3050-Group-Cryogenic Vial Brochure

100 Place BioBox for Internal Thread Only 1 & 2mL Cryogenic Vials

Globe Scientific BioBOX 100 (SKU 3050) — 100-place (10×10) polycarbonate cryogenic storage box for internal thread 1.0 mL and 2.0 mL CryoCLEAR vials only. Rated -196°C to +121°C. Printed numerical grid lid, vent holes, frosted writing surface, and CryoCLEAR vial picker included. Available in blue, green, red, yellow, and white; sold in packs of 5.

BioBOX 100, for 1.0mL and 2.0mL Internal Threaded CryoCLEAR vials, Polycarbonate (PC), Holds 100 vials (10x10 format), Printed Lid, Pack Includes a CryoClear Tube Picker, BLUE , CS/40

BioBOX 100, for 1.0mL and 2.0mL Internal Threaded CryoCLEAR vials, Polycarbonate (PC), Holds 100 vials (10x10 format), Printed Lid, Pack Includes a CryoClear Tube Picker, GREEN, CS/40

BioBOX 100, for 1.0mL and 2.0mL Internal Threaded CryoCLEAR vials, Polycarbonate (PC), Holds 100 vials (10x10 format), Printed Lid, Pack Includes a CryoClear Tube Picker, RED, CS/40

BioBOX 100, for 1.0mL and 2.0mL Internal Threaded CryoCLEAR vials, Polycarbonate (PC), Holds 100 vials (10x10 format), Printed Lid, Pack Includes a CryoClear Tube Picker, WHITE, CS/40

BioBOX 100, for 1.0mL and 2.0mL Internal Threaded CryoCLEAR vials, Polycarbonate (PC), Holds 100 vials (10x10 format), Printed Lid, Pack Includes a CryoClear Tube Picker, YELLOW, CS/40

1000ml round bucket for Z496-1000-AC 2/pk

The Z496-1000-1L by Hermle is a 2-pack of 1,000 ml round-bottom buckets for the Z496-1000-AC swing-out rotor on the Z496-K floor centrifuge, reaching 4,600 rpm / 5,203 xg — a higher g-force ceiling than the rectangular-bucket RBUK configuration.

<h2>What is a 50 bp DNA ladder?</h2>
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A 50 bp DNA ladder provides reference bands spaced at 50-base-pair intervals, most commonly covering 50 bp to 1000 bp (or up to 1500 bp in some extended formats), making it suitable for gel electrophoresis experiments where samples are very small DNA fragments that a 100 bp ladder cannot resolve accurately because 100 bp band spacing is too coarse. Common applications include microsatellite and STR genotyping, analysis of small restriction digest products, multiplex or nested PCR amplicons, and other short-fragment applications in the 50&ndash;500 bp range where precise size discrimination is needed.
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<h2>What you will find:</h2>
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ZR 50 bp DNA Marker for precise analysis of smaller DNA fragments&nbsp;
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Azura PureView&trade; 50 bp DNA Ladder for high-resolution gel results in electrophoresis
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Accuris SmartCheck&trade; 50bp DNA Ladder for size determination of PCR products
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<h2>How to choose and use a 50 bp DNA ladder</h2>
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Use a 50 bp ladder when your fragments differ by less than 100 bp and are below 500 bp
The primary reason to use a 50 bp ladder over a 100 bp ladder is when your samples include fragments with size differences of less than 100 bp that need to be resolved, such as microsatellite alleles or closely-sized PCR amplicons from multiplex reactions.
Run small-fragment gels on 2&ndash;4% agarose or polyacrylamide for adequate resolution
High-percentage agarose (2&ndash;4%) or polyacrylamide gels are needed to resolve very small DNA fragments as distinct bands rather than all migrating together near the gel front, since standard 1% agarose does not provide sufficient resolution for fragments below approximately 200 bp.
Use a reference band at a convenient size for quick orientation
Many 50 bp ladders include a brighter reference band at a convenient, easy-to-remember size such as 250 bp or 500 bp, which serves as an anchor for identifying surrounding bands without counting from the well each time.
Confirm the 50 bp ladder's smallest band is detectable with your staining system
Very small DNA fragments, especially below 100 bp, can be difficult to detect or may run off the gel front quickly, and confirming that the ladder's smallest defined bands are visible under your staining and imaging setup helps ensure the full ladder range is usable.
Consider polyacrylamide gels for the highest resolution of fragments below 200 bp
Polyacrylamide gel electrophoresis provides substantially higher resolution than high-percentage agarose for fragments below 100&ndash;200 bp, making it the preferred format when single-base or very fine size discrimination is needed in this range, such as for SSR or STR genotyping.
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<h2>Specifications context</h2>
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Standard 50 bp DNA ladders typically cover from 50 bp to 1000 bp with bands at 50 bp intervals, and many include a brighter reference band at 250 bp or 500 bp for quick orientation. As of 2026, the 50 bp ladder remains the standard small-fragment size reference for microsatellite and STR genotyping workflows, whether on standard agarose or capillary electrophoresis platforms where defined size standards are loaded alongside samples.
<a href="https://mbpinc.net/contact-us">Contact the expert team of Molecular Biology Products Inc. (MBP)</a> and get premium-quality 50bp DNA ladders for your next experiment.

50bp DNA Ladders

100bp DNA Marker

100bp DNA Marker (DM01-00) by MBP is a DNA ladder of 11 fragments from 100 to 1500 bp in multiples of 100 bp. The 500 bp fragment has increased intensity as a reference band. Available in 50 µl (DM01-00), 0.5 mL (DM01-01), and 5&times;0.5 mL (DM01-02).

100bp DNA Marker, 50μl

100bp DNA Marker, 0.5 mL

100bp DNA Marker, 5x0.5 mL

MSDS

DNA Marker Guide

100bp Opti-DNA Marker

Unit Quantity

Concentration

Application

Storage Condition

Shipping condition

100bp Plus Opti-DNA Marker

100ml insert for Z306-100 2/pk.

Z306-100-A100 by Benchmark Scientific is a 100 ml tube insert for the Z306-100 (4 × 100 ml) swing-out rotor on Hermle Z306 and Z326 centrifuges, rated to 4,500 RPM / 3,350 × g. Sold 2 per pack.

100ml insert for Z327-200-BUK, 2/pk

The Z327-200-A100 by Hermle / Benchmark Scientific is a 100&nbsp;ml swing-out insert for the Z327-200-BUK bucket on Hermle Z307 and Z327 Universal Centrifuges, sold 2 per pack. It enables 100&nbsp;ml sample centrifugation within the 200&nbsp;ml bucket without additional rotor hardware. Compatible with standard Hermle Z327-series instruments used across academic and research labs.

100ml insert, 2/pk.

Z366-250-A100 by Benchmark Scientific is a 100 ml insert for the Z366-250 (4 × 250 ml) swing-out rotor on Hermle Z366 universal centrifuges, sold 2 per pack. Each insert fits one rotor bucket and holds a single 100 ml conical tube.