Tube Rotator

A tube rotator (also known as a rotating mixer or end-over-end mixer) provides gentle, continuous 360° rotation for samples in sealed centrifuge tubes. Designed for workflows commonly performed on tube rotators from Thermo Fisher, Benchmark Scientific, DLAB and Labnet. Ideal for immunoprecipitation, protein binding, nucleic acid extraction, blood mixing, cell suspension mixing, hybridization, Western blot sample preparation, bead-based assays, and NGS sample preparation.

How to Choose Your Tube Rotator – Quick Selection Guide

Not sure which rack orientation or configuration fits your protocol? Email info@hawach.com with your tube type and application – we will recommend the best setup.

What Is a Tube Rotator?

A tube rotator is a laboratory mixer that rotates sample tubes continuously through a 360° end-over-end motion to keep suspensions, blood samples, protein solutions, and cell cultures uniformly mixed. Unlike vortex mixers that create high shear forces, tube rotators provide gentle mixing suitable for sensitive biological samples – essential for immunoprecipitation, blood anticoagulation, and protein binding studies.

Tube Rotator Product Overview – End-Over-End Laboratory Mixer

The tube rotator (rotating mixer) is a laboratory mixing device designed for gentle, continuous end-over-end rotation of sample tubes. Powered by a DC motor with microcomputer control, it provides stable speed regulation, low noise, and reliable long-term operation. The modular tray system accommodates interchangeable double-sided racks for 1.5 mL, 2.0 mL, 5 mL, 10 mL, 15 mL, and 50 mL centrifuge tubes. Combined rotation + inversion + programmable pause cycles ensure uniform mixing without damaging sensitive biological samples.

Key Features – Tube Rotator

• LCD display– Real-time speed and timer status.
• Speed range:10-100 rpm
• Timer range:10 minutes to 99 hours 59 minutes; automatic alarm on completion.
• DC motor drive– Stable, quiet, maintenance-free, long service life.
• Knob-based control– Easy operation.
• Programmable modes– Rotation, inversion, pause (single or combined cycles).
• Modular tray system– Interchangeable double-sided racks for flexible tube configuration.
• Vertical or horizontal installation– Choose orientation based on sample type.

Vertical vs Horizontal Installation – Which Orientation to Choose?

• Vertical installation (18101112, 18101114, 18101116, 18101118)– Tubes rotate end-over-end with maximum stability. Recommended for dense sample holding, viscous liquids (blood, glycerol), and when tube stability is critical.
• Horizontal installation (18101113, 18101115, 18101117, 18101119)– Tubes rotate horizontally, improving fluid-air interface and mixing efficiency for less viscous samples. Ideal for gentle mixing of biological samples, preventing blood coagulation, and maximising sample contact with reagents.

Main Unit Specifications – Tube Rotator

Modular Tray Rack System – Complete Ordering Information

Tube Rotator Applications by Sample Type

Select the appropriate speed and orientation based on your sample type for optimal mixing performance.

Tube Rotator vs Roller Mixer – Which One Do You Need?

Typical Applications of Tube Rotator

• Immunoprecipitation (IP) & Co-IP– Gentle end-over-end rotation of antibody-bead suspensions (1.5 mL tubes, 10-30 rpm).
• Protein binding assays & pull-down– Uniform mixing of protein lysates with affinity resins.
• Nucleic acid extraction (DNA/RNA)– Spin-column binding and washing steps.
• Blood sample mixing & anticoagulation– Preventing coagulation in blood collection tubes (15 mL/50 mL, 20-50 rpm, horizontal orientation).
• Cell suspension mixing– Gentle resuspension of cells without damage.
• Hybridization– Uniform mixing for nucleic acid hybridisation assays.
• Western blot sample preparation– Mixing protein samples before gel loading.
• Bead-based assays– Uniform suspension of magnetic or agarose beads.
• NGS sample preparation– Library preparation and bead clean-up steps.

Why Procurement Teams Choose Hawach Tube Rotators

• Designed for workflows commonly performed on tube rotators from Thermo Fisher, Benchmark, DLAB and Labnet– Use existing methods – no revalidation required.
• Modular tray system– One main unit covers 1.5 mL to 50 mL tubes. Reduces equipment inventory and procurement cost.
• Cost-effective alternative– Competitive pricing compared to premium laboratory brands.
• DC motor -maintenance-free – Quiet, long service life (5-10 years).
• Programmable timer (99 h 59 min)– Unattended overnight mixing, reproducible timing.
• Vertical & horizontal rack options– One instrument adapts to different sample types.
• In-stock– Main unit (18101003) and all racks ship within 3-5 business days.
• OEM & private label– Custom branding, packaging, and custom rack configurations for distributors and volume buyers.
• Evaluation samples available for qualified laboratories and distributors.

Related Laboratory Mixers

• Roller Mixer for Blood Tube Mixing
• Vortex Mixer for Single Tubes
• Multi-Tube Vortex Mixer for High-Throughput Batch Mixing
• Benchtop Centrifuges

Frequently Asked Questions