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

Tube holder, 96 x 0.2ml, 12 x PCR strips or one PCR plate (R2024 and H2024 Only)

R2020-PCR by Benchmark Scientific is a PCR-format tube holder for the R2024 Roto-Mini Plus. Holds 96 x 0.2 mL tubes, 12 PCR strips, or one 96-well plate; optimized for oscillating Mix mode for bead-based and plate-format sample preparation.

Manufacture

<h2>What are tube rollers and rotators?</h2>
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Tube rollers and rotators are low-speed mixing instruments that provide gentle, continuous agitation of tubes and bottles through rolling or inversion motion rather than high-speed shaking. A tube roller operates by rotating horizontal rollers that the tubes or bottles rest on, causing them to roll along their long axis in place, creating slow, even mixing of the tube contents without introducing air bubbles. A rotator (end-over-end mixer) clamps tubes in a wheel or drum that rotates at 5&ndash;30 rpm, inverting the tubes repeatedly through a full circle for thorough but gentle mixing.
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<h2 dir="ltr">What you will find:</h2>
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<a href="https://mbpinc.net/equipments/agitation-equipment/rollers-and-rotators">Rollers &amp; Rotators</a>:
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Mini &amp; Digital Rotators: Compact benchtop rotating mixers and programmable units designed for smooth, continuous sample inversion.
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Multi-Roller Tube Rollers: High-capacity 5-roller, 6-roller, and 10-roller systems engineered for uniform rolling of culture bottles and blood tubes.
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Temperature-Controlled Rotators: Special incubated models that combine steady sample rotation with precise temperature management.
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Platform Rockers: Basic single-platform shaking and rocking systems optimized for blot washes and gel staining procedures.
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<a href="https://mbpinc.net/equipments/agitation-equipment/rollers-and-rotators/roller-and-rotator-accessories">Roller &amp; Rotator Accessories:</a>
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<li data-path-to-node="4,0,0">Interchangeable Tube Holders: Snap-on racks and clips designed specifically to accommodate 1.5ml, 2.0ml, 15ml, and 50ml laboratory tubes.</li>
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<h2>How to choose rollers and rotators</h2>
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Choose a tube roller for blood collection and clinical tube mixing
Tube rollers are the standard instrument for homogenizing anticoagulated blood collection tubes before clinical testing, operating at 5&ndash;20 rpm to ensure even mixing of blood and anticoagulant without hemolysis from excessive speed. The roller format also suits other tubes and bottles that are too long for end-over-end rotation to work effectively in the space available.
Choose a rotator for antibody-bead incubations and immunoprecipitation
End-over-end rotators invert tubes through a full 360&deg; cycle, ensuring that beads settled at the tube bottom are continuously resuspended and that the bead surface is uniformly exposed to the solution throughout the incubation. This complete inversion is essential for immunoprecipitation, pull-down assays, and antibody-coupling incubations where beads must stay in suspension for efficient binding.
Consider the tube capacity and format each instrument accommodates
Tube rollers hold a fixed number of tubes of defined diameter on the roller surface; rotator wheels typically accommodate a defined set of tube positions for specific tube formats. Confirm that the instrument handles the tube diameter, length, and quantity you work with most commonly, and that accessories are available to accommodate additional formats.
Evaluate speed range against your mixing requirement
Blood sample homogenization requires gentle speed of 5&ndash;12 rpm to avoid hemolysis, while antibody-bead incubations can use faster rotation of 10&ndash;30 rpm for more active suspension maintenance. A variable-speed rotator provides flexibility across applications; a fixed-speed roller set at the correct blood mixing speed is adequate for dedicated blood handling.
Confirm whether incubator-compatible models are needed for your workflow
Rotator and roller incubations often require 37&deg;C for antibody binding or hybridization reactions. Models designed for incubator interior use have compact profiles and materials that tolerate incubator humidity and temperature, while standard bench models are not always rated for this environment.
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<h2>Specifications context</h2>
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Tube rollers used for blood sample mixing are typically operated at a fixed or low-speed range of 5&ndash;12 rpm, a range established from clinical literature showing that this rotation speed adequately homogenizes anticoagulated blood without inducing hemolysis from mechanical stress. As of 2026, compact benchtop tube rollers that fit inside standard incubators and cold rooms without taking up significant shelf space remain popular in clinical and research labs for routine sample preparation.
If you&rsquo;re unsure which rotation style or capacity fits your current workflow, the MBP team is here to help&mdash;<a href="https://mbpinc.net/equipments/rollers-and-rotators">contact us today for a custom quote.</a>

Product Literature

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

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

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

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

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

RotoMini™ and RotoMini PLUS Tube Rotators Accessories

Roto-Therm™ Incubated Rotators

The H2020 by Benchmark Scientific is the standard Roto-Therm Incubated Rotator: fixed 24 rpm, digitally controlled temperature chamber from ambient +5 to 60 degrees C, and interchangeable tube holders for 0.5 mL to 50 mL formats. Motion switches between vertical (end-over-end) and horizontal (rolling) by twisting the rotisserie. 115V; 230V model H2020-E. For variable speed and Rock/Mix modes, see H2024 (Plus model).

Temperature

Speed (H2020)

Speed (H2024)

Mixing Modes (H2024)

Dimensions

Weight (H2020)

Weight (H2024)

Electrical

Warranty

Roto-Therm™ Incubated Rotator with tube holders, 115V

Roto-Therm™ Incubated Rotator with tube holders, 230V

Roto-Mini Rotators

R2020 Roto-Mini by Benchmark Scientific is a fixed-speed tube rotator at 24 rpm with user-selectable vertical (end-over-end) or horizontal (rolling) motion. Includes holders for 1.5/0.2 mL, 5-7 mL, 10-15 mL, and 50 mL tubes (two sets each). Universal 100-240V input for global use.

Speed Range R2020

Speed Range R2024

Mixing Modes R2020

Mixing Modes R2024

Max Capacity

Dimensions (in)

Dimensions (cm)

Weight

Roto-Mini™ Rotator with tube holders, 115V

Roto-Mini™ Rotator with tube holders, 230V

TubeRoller with 10 rollers

R301000 by Benchmark Scientific is a 10-roller TubeRoller with a ±5° tilt mechanism that produces wave-like end-to-end mixing for tubes and vessels from 8–200 mm OD, including Vacutainers®, centrifuge tubes, and roller bottles. Available in 115 V (US) and 230 V (EU).

Speed

Motion

Operating Temp.

Individual Roller Dims

Vessels Accepted

Rolling Spacing

Number of Rollers

Dimensions (R3005)

Dimensions (R3010)

Power

TubeRoller with 10 rollers, 115V

TubeRoller with 10 rollers, 230V

RotoBot Programmable Rotator

R4045 by Benchmark Scientific is the RotoBot Programmable Rotator, a variable-speed tube rotator running 1-80 rpm with 10+ operating modes, including two custom C1/C2 programs, supplied with a starter set of tube holders for 1.5mL, 15mL, and 50mL tubes.

Speed Range

Max Capacity (R4040)

Max Capacity (R4045)

Timer

RotoBot Programmable Rotator, includes tube holders for 30x1.5ml, 8x15ml and 2x50ml

RotoBot Programmable Rotator, includes tube holders for 30x1.5ml, 8x15ml and 2x50ml, 240V

RotoBot™ Rotating Mixer

R4040 by Benchmark Scientific is the RotoBot™ Mini programmable rotating mixer — 1–80 rpm digital control, 10+ modes, two custom-programmable sequences (C1/C2), timer to 99 hrs 59 min, cold room and incubator safe (+2°C to +70°C). Includes 12 x 1.5 ml, 2 x 15 ml, and 2 x 50 ml tube holders. Universal voltage (100–240 V). Request a quote or order at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a>.

RotoBot Mini Programmable Rotator, includes tube holders for 12x1.5ml, 2x15ml and 2x50ml

RotoBot Mini Programmable Rotator, includes tube holders for 12x1.5ml, 2x15ml and 2x50ml, 240V

Roto-Mini™ Plus Rotator, Variable Speed

Roto-Mini™ Plus Variable Speed Rotators

Benchmark’s new Roto-Mini series of rotating mixers provides a wide range of mixing capabilities, suitable for an array of laboratory applications including resuspension, protein binding, nucleic acid purification, histochemistry, hybridization, etc.\r\n\r\nPlus models offer variable speed (5-70rpm), a “Mix” mode for enhanced mixing, a “Pause” function with intermittent stops, and a gentle rocking “Rock” mode. They include a 4.5 x 3-inch platform and a 96 x 0.2ml tube/strip/plate holder for PCR vessel mixing.

Weight 

Roto-Mini™ Plus Variable Speed Rotator with tube holders, 115V

Roto-Mini™ Plus Variable Speed Rotator with tube holders, 230V

Roto-Therm™ Plus Incubated Rotator

H2024 by Benchmark Scientific is the Roto-Therm Plus, a variable-speed incubated rotator that runs 5-70 rpm at digitally controlled temperatures of ambient+5 to 60C, with Mix, Pause, and Rock mixing modes and interchangeable tube holders for 0.5mL to 50mL tubes.

Roto-Therm™ Plus Incubated Rotator (variable speed) with tube holders, 115V

Roto-Therm™ Plus Incubated Rotator (variable speed) with tube holders, 230V

Rotating Mixer

The R5010 by Benchmark Scientific is a rotating mixer that provides gentle to vigorous mixing of samples up to 50mL, with adjustable speed, tilt angle, and a reversing mode, supplied with three rotisserie tube holders.

Tilt Angle

Ambient Operating Temp.

Rotating Mixer with rotisseries for 1.5/2.0, 15 and 50ml tubes, 115v

Rotating Mixer with rotisseries for 1.5/2.0, 15 and 50ml tubes, 230v

TubeRoller with 5 rollers

R300500 TubeRoller by Benchmark Scientific (mfr SKU: R3005) is a 5-roller variable speed tube roller at 2-80 rpm with a built-in 13 mm wave motion (±5° tilt) that ensures complete end-to-end mixing. Accepts tubes and bottles from 8 to 200 mm diameter. Rated +4°C to +40°C. 115V or 230V.