Handheld Rotor-Stator Homogenizer

What is the Handheld Rotor-Stator Homogenizer?

A handheld rotor-stator homogenizer is a portable motor unit with an interchangeable dispersing tool, held by hand or clamped on a stand. It suits tube- and beaker-scale homogenization of 0.1 to 500 mL for quick sample preparation and field use.

Overview

The handheld homogenizer combines a compact motor, typically 50 to 300 W, with a slender dispersing tool of 6 to 30 mm diameter. Speed ranges from 5,000 to 28,000 rpm with a dial or digital control, and some models are cordless with a rechargeable battery. The tool immerses in the sample, and the operator moves it gently to cover the volume. Weight is 0.5 to 1.5 kg, making the unit convenient, but the operator must hold it steady. Stand mounting removes that burden and improves repeatability. Dispersing tools are stainless steel or autoclavable, and some are sealed for harsh solvents. The design suits quick tasks such as homogenizing tissue fragments, emulsifying small batches, dispersing pigments and preparing samples for extraction. Because it is hand-operated, noise and vibration are higher and control is less precise than on benchtop models.

How does it work?

A high-speed homogenizer drives a rotor inside a fixed stator at speeds of roughly 5,000 to 30,000 rpm. The rotation creates suction that draws sample into the probe from below, then centrifugal force pushes it radially through slots in the stator. The narrow gap, often 0.15 to 0.5 mm, produces intense mechanical shear, turbulence and, at high speed, cavitation. These forces break tissue fragments, disperse solids and reduce droplets to a few micrometers. Energy transfers as heat, so cooling is often needed for biological samples. Main components are the motor, a drive shaft with dispersing tool, interchangeable rotor-stator generators, a speed controller and a support stand or handle. Probe diameter, slot design and speed determine the working volume, typically from 0.1 mL to 20 L, and the final particle size.

What are the key features?

• Compact motor unit weighing about 0.5–1.5 kg for easy handling
• Speed of roughly 5,000–28,000 rpm with dial or digital control
• Interchangeable dispersing tools of 6–30 mm diameter
• Stand-mount option for hands-free repeatable operation
• Cordless battery version for field and cabinet use
• Autoclavable stainless steel tools for sterile workflows

What are the technical specifications?

A typical handheld rotor-stator homogenizer configuration offers speed range of 5,000–28,000 rpm, working volume of 0.1–500 mL, motor power of 50–300 W, tool diameter of 6–30 mm, tip speed of Up to 20 m/s and weight of 0.5–1.5 kg. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Handheld Rotor-Stator Homogenizer is used in quick tissue disruption, small-batch emulsification, pigment and powder dispersion, field sample preparation and extraction sample preparation. Across the wider High-Speed Homogenizers class, laboratories also deploy it for tissue disruption for DNA, RNA and protein extraction, emulsion and cream preparation and pharmaceutical suspension dispersion.

Which standards and certifications apply?

Relevant standards and methods include IEC 61010-1, IEC 61010-2-051, ISO 13320, EN ISO 12100 and GB 4793.1. Certification candidates for this model are CE, RoHS and ISO 9001 manufacturing; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Keep the probe immersed to at least the minimum depth during operation to avoid air entrainment, splashing and seal damage. Clamp vessels securely, and use ice baths or short bursts to prevent heating of biological samples. Wear eye protection and guards, and always keep the probe stationary when lifting it from the sample. Clean the probe immediately after use by running it in water and then in detergent or solvent suitable for your sample. Inspect generators for wear, because damaged stators give inconsistent results. Follow IEC 61010-1 for electrical safety. For biological and infectious materials, use a biosafety cabinet or closed system and decontaminate the probe according to your biosafety procedures. Record speed, time and temperature to support reproducibility.

How do I select the right Handheld Rotor-Stator Homogenizer?

Choose a handheld homogenizer for quick, flexible sample preparation in tubes and beakers where portability matters. For repeatable protocols, choose a benchtop digital model. In the RFQ, state sample volume range, tool diameters, speed, battery versus mains power and autoclavability.

How does it compare with other High-Speed Homogenizers variants?

Choose a high-speed homogenizer by working volume, sample type, speed range and format. Handheld units are portable and suited to small volumes in tubes and beakers. Benchtop digital units provide precise speed, timer and torque feedback for reproducible protocols. Micro-volume models work with 0.1 to 10 mL samples in microtubes. Large floor-stand units process liters to tens of liters in pilot work. Disposable-probe systems prevent cross-contamination in clinical and molecular workflows. Consider the maximum speed and the generator options, and whether the probe materials such as 316L stainless steel or PTFE are compatible with your samples. Verify noise, vibration and safety features. Ask the supplier about tip speed, particle size results and cleaning procedures, and request a demonstration with your own sample where possible.