Rollers & Rotators

<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>

Instruction Manual

Product Literature

Horizontal Analog Tube Rotator with Adjustable Speed

The GTR-HA by Globe Scientific is a horizontal end-over-end analog tube rotator with 0-80 rpm variable speed, universal 120-240V power, and included clips for 1.5/2.0 mL, 15 mL, and 50 mL tubes (36 + 12 + 12 clips). US, UK, and EU plugs included. Stainless steel rotisserie platen with interchangeable clip-on tube holders for blood mixing, bead assays, and overnight extraction incubations.

Tube Cpacity

Sixteen (16)

Eight (8)

Speed Range

Operation Mode

Voltage

Power

Dimensions (W x D x H)

Weight

Operating Temperature

Permissible Relative Humidity

Protection Class

Warranty

Manufacture

Tube Rotator, Horizontal, Analog, Adjustable Speed, 120-240v, 50/60Hz, US, UK, EU Plugs (Includes Tube Holder Clips: 36 each 1.5/2.0mL, 12 each 15mL and 12 each 50mL Tubes)

Tube Holder for use with GTR-HA Series Tube Rotators, 12 each for 1.5mL Microcentrifuge Tubes

Tube Holder for use with GTR-HA Series Tube Rotators, 12 each for 15mL Microcentrifuge Tubes

Tube Holder for use with GTR-HA Series Tube Rotators, 12 each for 50mL Microcentrifuge Tubes

Horizontal Digital Tube Rotator with Adjustable Speed

GTR-HD by Globe Scientific -- horizontal digital tube rotator, 10-70 rpm adjustable, LCD speed and timer display (1-1,199 min), brushless DC motor, 100-240V, cold-room compatible (5-40degC). Supports 1.5/2.0 mL, 15 mL, and 50 mL tubes; 16 x 50 mL vertical holder included. 2-year warranty.

Tube Capacity

Speed Display

Timer Display

Timer

Tube Rotator, Horizontal, Digital, Adjustable Speed and Angle, 120-240v, 50/60Hz, US, UK, EU Plugs (Includes: 16-Place Tube Holder for 50mL Tubes)

Tube Holder for use with GTR-HD Series Tube Rotators, 48 Horizontal Places for 1.5mL Microcentrifuge Tubes

Tube Holder for use with GTR-HD Series Tube Rotators, 48 Horizontal Places for 15mL Microcentrifuge Tubes

Tube Holder for use with GTR-HD Series Tube Rotators, 24 Horizontal, Places for 50mL Microcentrifuge Tubes

Tube Holder for use with GTR-HD Series Tube Rotators, 32 Vertical Places for 1.5mL Microcentrifuge Tubes

Tube Holder for use with GTR-HD Series Tube Rotators, 16 Vertical Places for 15mL Microcentrifuge Tubes

Tube Holder for use with GTR-HD Series Tube Rotators, 16 Vertical Places for 50mL Microcentrifuge Tubes

User Manual

Industrial Digital Tube Rotator

The GTR-ID by Globe Scientific is an all-metal industrial digital tube rotator designed for high-demand labs that need durable end-over-end or rolling rotation without the broken plastic clamps common in lighter-duty models. Speed adjusts digitally from 10 to 70 rpm via LCD display, and tilt angle is continuously adjustable from 0 to 90 degrees using a graduated scale printed directly on the housing. Includes an 8-place 50 mL tube holder disk; optional disks for 1.5/2.0 mL and 15 mL tubes and disk-stacking rods are available separately. Compatible with cold rooms and incubators.

Tilt Angle

Motor Type

Tube Rotator, Industrial, Digital, Variable Speed and Angle, 120-240v, 50/60Hz, US, UK, EU Plugs (Includes: 8-Place Disk for 50mL Tubes)

Tube Holder Disk for use with GTR-ID Series Tube Rotators, 60-Place Disk, for 1.5mL Microcentrifuge Tubes

Tube Holder Disk for use with GTR-ID Series Tube Rotators, 16-Place Disk, for 15mL Centrifuge Tubes

Tube Holder Disk for use with GTR-ID Series Tube Rotators, 8-Place Disk, for 50mL Centrifuge Tubes

Tube Holder Disk Stacking Rods (allows for use of 2 x GTR-ID Series Tube Holders at once), 4 Each

Industrial Analog Tube Rotator

The GTR-IA by Globe Scientific is an all-metal industrial analog tube rotator with a fixed-angle Ferris Wheel disk for true end-over-end rotation. Analog speed control covers 0 to 80 rpm; no programming required. Includes 12 tube clips each for 1.5/2.0 mL, 15 mL, and 50 mL tubes (36 total), configurable in any combination on the same disk. DC motor, 100-240V 50/60 Hz, cold room compatible. 2-year warranty.

Dimensions (WxDxH)

Tube Rotator, Industrial, Analog, Variable Speed and Fixed Angle, 120-240v, 50/60Hz, US, UK, EU Plugs (Includes: Configurable Disk with Tube Holder Clips, 12 each 1.5/2.0mL, 12 each 15mL and 12 each 50mL)

Tube Holder Clips for use with GTR-IA Tube Rotator, 12 each for 1.5mL Microcentrifuge Tubes

Tube Holder Clips for use with GTR-IA Series Tube Rotators, 12 each for 15mL Centrifuge Tubes

Tube Holder Clips for use with GTR-IA Series Tube Rotators, 12 each for 50mL Centrifuge Tubes

Tube Roller, Digital, Variable Speed, 6 Rollers, 120-240v, 50/60Hz, US, UK, EU Plugs

GTR-DVS by Globe Scientific is a digital tube roller with 6 rollers and adjustable speed from 10 to 70 RPM, built for blood tubes, conicals, and round bottles up to 4 kg total load. The dual rolling-and-see-saw motion, DC brushless motor, and 1–1,199 minute timer support both quick mixing and extended overnight protocols. Universal 100–240 V / 50–60 Hz input with US, UK, and EU plugs included.

Amplitude

Motion

Max. Load Capacity

Number of Rollers

Roller Size (Length)

Time Setting Range

Tube Roller, Analog, Variable Speed, 6 Rollers, 120-240v, 50/60Hz, US, UK, EU Plugs

The GTR-AVS by Globe Scientific is a 6-roller analog variable-speed tube roller with dual rolling and see-saw motion, 10-70 rpm, 8.8 lb max load (10 x 15/50 mL tubes), DC brushless motor, 100-240V. US, UK, and EU plugs included. Cold room and incubator compatible. For exact speed documentation, use the GTR-DVS digital model.

United States

Texas

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