Rollers & Rotators

Rollers & Rotators Accessories

<h2>What are rollers and rotators accessories?</h2>
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Rollers and rotators accessories are the interchangeable tube holders, clip assemblies, wheel inserts, and platform adapters that allow a base roller or rotator instrument to securely hold and mix different tube sizes and formats. A single rotator or roller body with the appropriate accessory set can handle blood collection tubes of various sizes, standard 1.5 mL and 2 mL microcentrifuge tubes, 15 mL and 50 mL centrifuge tubes, and bottles of different diameters. Without the correct holder, tubes may not sit securely during rotation, may not be mixed effectively due to poor contact with the roller surface, or may become unsecured and spill during the mixing cycle.
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<h2 dir="ltr">What you will find: </h2>
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Interchangeable Tube Carousels: Specialized discs for holding different diameters of test tubes and vials.
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Universal Rotating Plates: Versatile platforms that allow for a mix of clips to be mounted simultaneously.
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Replacement Roller Bars: Durable, easy-to-clean bars to maintain or expand the capacity of your tube rollers.
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Vessel Clips &amp; Clamps: Secure mounting hardware for larger flasks and specialized containers.
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Horizontal &amp; Vertical Tube Holders: Adapters that allow you to change the angle of rotation for specific protocols.
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Stacking Kits: Hardware designed to safely tier multiple rotators to save valuable bench space.
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<h2>How to choose rollers and rotators accessories</h2>
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Match tube holder specifications to your exact tube dimensions
Tube holders and clips are designed for specific tube outer diameters and lengths, and a holder designed for one tube format may not securely retain a different tube size. Blood collection tube holders are typically sized to match standard 13 &times; 100 mm or 16 &times; 100 mm Vacutainer-type tubes, while microcentrifuge tube clips hold 1.5 mL and 2 mL tubes by their caps.
Confirm holder compatibility with your specific roller or rotator model
Tube holders and wheel inserts from different manufacturers may not be interchangeable between roller and rotator models, since the mounting mechanism, wheel diameter, and rotation geometry differ. Confirm that the specific accessories you need are listed as compatible with your instrument model before purchase.
Choose the right wheel format for your mixing application
End-over-end rotators typically use a flat wheel with individual tube positions or a drum format with clip-type holders around the perimeter. Wheels with fewer positions hold tubes more securely at higher rotation speed; high-capacity drum formats allow more samples per rotation cycle at the cost of per-position security at higher speeds.
Consider multi-format holder sets for flexibility across tube sizes
Labs mixing different tube sizes benefit from a set of holders covering common formats &mdash; blood tube, microcentrifuge, and conical tube &mdash; allowing the same rotator to be reconfigured for different sample types without separate instruments per format.
Check that the roller surface contact area matches the bottle or tube being mixed
For tube rollers, the tube or bottle must contact both driving rollers simultaneously for uniform rolling. Bottles or tubes much wider or much narrower than the roller spacing may not roll uniformly, and roller spacing adjustment or specific bottle roller inserts that match the bottle diameter are needed to ensure even, controlled rolling.
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<h2>Specifications context</h2>
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Secure tube retention during rotation prevents tubes becoming loose and interrupting mixing. Rotator manufacturers design holders to specific torque and speed limits; exceeding the rated speed risks retention failure. As of 2026, multi-format rotator kits covering blood tubes, microcentrifuge tubes, and 50 mL conical tubes are the standard first accessory purchase, providing flexibility without separate orders per tube type.
Not sure which clip or carousel is compatible with your current hardware? <a href="https://mbpinc.net/contact-us">The MBP team is here to assist</a>&mdash;reach out for a custom quote on the accessories you need.

Roller & Rotator Accessories

1 x 15ml tube holder, pack of 2

R4040-150 by Benchmark Scientific is a vertical tube holder for a single 15mL tube, sold in a pack of 2, for use with the RotoBot Mini and RotoBot Standard programmable rotating mixers.

Manufacture

1 x 50ml tube holder, pack of 2

The R4040-500 by Benchmark Scientific is a vertical tube holder for a single 50mL tube, sold in a pack of 2 as an accessory for the RotoBot line of programmable rotating mixers.

6 x 1.5/2.0ml tube holder, pack of 2 (Installed for vertical or horizontal mixing)

R4040-1520 by Benchmark Scientific is a dual-orientation tube holder for 6 x 1.5/2.0mL microtubes, sold as a pack of 2, compatible with the RotoBot Mini (R4040) and RotoBot Standard (R4045). Each holder can be installed for either vertical (end-over-end) or horizontal mixing.

6 x 15ml horizontal rotisserie, 1 ea

R4040-HZ15 by Benchmark Scientific is a horizontal rotisserie attachment that holds 6 x 15mL tubes lying flat, designed for the RotoBot Mini and RotoBot Standard programmable rotating mixers.

6 x 50ml horizontal rotisserie, 1 ea

R4040-HZ50 by Benchmark Scientific is a horizontal rotisserie accessory that holds 6 x 50mL tubes lying flat, designed for the RotoBot Mini and RotoBot Standard programmable rotating mixers.

Mini rocking platform with rubber mat, 4.5 x 3 in (R2024 and H2024 Only)

The R2020-RP by Benchmark Scientific is a 4.5 x 3 in. mini rocking platform with rubber mat for the Roto-Mini Plus (R2024) and Roto-Therm Plus (H2024) rotators. Mounts on the rotisserie to enable rocking (see-saw) and oscillating Mix mode on these variable-speed units. Not compatible with standard fixed-speed R2020 or H2020 models. Verify H2024 compatibility with Benchmark Scientific before ordering.

Rocking platform for RotoBot Mini, 6 x 5.5"

R4040-RP by Benchmark Scientific is the 6 x 5.5 inch flat mat rocking platform accessory for the R4040 RotoBot Mini programmable rotator. Enables 2D platform rocking via the PP mode on the R4040 for blot washing, gel staining, and membrane incubations. RotoBot Mini sold separately.

Rocking platform for RotoBot, 6 x 10"

R4045-RP2 by Benchmark Scientific is a 6 x 10 inch non-slip rocking platform that attaches to the RotoBot Standard (R4045) or RotoBot Mini (R4040) and converts the rotator into a platform rocker by selecting the PP (platform) mode.

Tube holder, 11 x 1.5/2.0, 2/pk (1 pack included)

R2020-1520 by Benchmark Scientific is a microtube holder panel (11 x 1.5 ml or 2.0 ml capacity, 2 panels/pack, 1 pack included) for the Roto-Mini (R2020, R2024) and Roto-Therm (H2020, H2024) tube rotators. Swaps without tools to switch tube formats. Order via <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a> or contact <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a>.

Tube holder, 4 x 10-15ml, 2/pk (1 pack included)

R2020-150 by Benchmark Scientific is a tube holder for 10–15 ml conical and round-bottom tubes (16–17 mm OD), designed for the Roto-Mini (R2020, R2024) and Roto-Therm incubated rotators (H2020, H2024). Capacity is 5 × 10–15 ml tubes per holder on the Roto-Mini and 4 × 10–15 ml on the Roto-Therm. Two holders are included per pack (1 pack per order). Used in nucleic acid purification, immunoprecipitation, hybridization, histochemistry, and end-over-end mixing workflows in 15 ml conical tubes.

Tube holder, 5 x 5-7ml, 2/pk (1 pack included)

R2020-0507 by Benchmark Scientific is a tube holder for 5 x 5-7mL tubes, sold as a pack of 2 holders, compatible with the Roto-Mini (R2020, R2024) and Roto-Therm (H2020, H2024) rotator series.

Tube holder, 6 x 50ml, 1 each (1 pack included)

The R2020-500 by Benchmark Scientific is a 50 mL tube holder accessory for Roto-Mini (R2020, R2024) and Roto-Therm (H2020, H2024) rotators. Holds 6 x 50 mL conical tubes and 24 x 0.5 mL tubes simultaneously. Sold individually (1 pack); one pack ships with standard R2020 and H2020 rotators. Compatible with both vertical end-over-end and horizontal rolling orientations.