Contact us
Laboratory equipment

Boost your productivity with easy, reliable particle sizing solutions

Don’t let your particle size analysis be the bottleneck in your laboratory. Our test sieves and manual sieve shakers deliver proven high-productivity size determination reliably and simply, thanks to ergonomic and efficient engineering. Cost-effective, accurate and durable – these sieve shakers and sieves won’t let you down.

Home/.../Laboratory equipment/Size determination

Key benefits of our particle sizing solutions

  • Consistent, reliable sieving

    Our sieve shakers and sieves are built to the highest international standards to achieve consistent size determination, whatever your operation. The durable construction ensures long-term performance for precise particle analysis.

  • Increase laboratory productivity

    With ease-of-use a core design priority, these sieve shakers ensure testing is completed quickly and efficiently.

  • Range of solutions to meet your needs

    Our range of 200mm and 300mm diameter manual sieve shakers and the availability of a wide range of aperture and sieve sizes ensures you will find the sieving technology to meet your needs.

Test Sieves

Essa® Test Sieves provide accurate and efficient particle size analysis. They are made to meet international ISO 3310 standards and have been developed using high-quality stainless steel to provide long life and ensure accurate and efficient particle size analysis. These certified test sieves are also issued with unique serial numbers and a certificate of compliance for full product traceability.

Consistent and reliable – Essa Test Sieves are built on an exact rigid stainless-steel frame that is rugged, uniform and ensures a long lifespan. The frame is complemented by a screen that is constructed of strong stainless-steel wire mesh or a square-hole perforated plate. Both are inherently durable and corrosive resistant.

Ergonomically designed for ease of use – The large radius, sturdy rim and smooth edging makes them easy to handle.

Highly productive – This high-quality test sieve is constructed with no crevices to trap materials during the sieving process. The natural fillet ensures that the sample can flow freely onto the wire mesh or perforated plate.

Range of sizes – The test sieves come in a range of common diameters, including 100 mm, 200 mm, 300 mm and 450 mm, to suit most industry applications and all are certified to meet the extremely high international standards with ease.

Manual sieve shakers

Our manual sieve shakers use a shaking motion to move particles down through a series of test sieves in a stack. The coarser materials are retained higher in the stack and the finer materials fall to the bottom. All our manual sieve shakers deliver consistent, efficient and repeatable results that are substantially more reproducible and quicker than hand sieving. Even and consistent sieving – The vibratory, circular, and shaking motion of our manual sieve shakers, and the high quality of our sieves, ensures consistent and reproducible results and precise particle analysis. Minimal maintenance – Our manual sieve shakers are designed to operate well under heavy-duty use and require very little maintenance, making them cost-effective solutions. In-built flexibility – Our manual sieve shakers have been designed to accommodate sieves with different diameter and height sizes. The flexibility to match sieves and materials results in optimum sample processing.

Suited to all types of sieving tasks, our Octagon 200 Sieve Shaker is lightweight enough to be portable but has also proven its capability as a robust performer.

Using an innovative electromagnetic drive combined with a 3D sieving motion, the Octagon 200 is fast and efficient. A digital display and quick-release clamping system combine to make operation easy for laboratory personnel, and to further speed up sample processing. The Octagon 200 Sieve Shaker accepts up to 8 full-height or 16 half-height 200mm (8”) diameter sieves and is suitable for dry or wet sieving.

Our manual RO-TAP Sieve Shakers provide reliable, accurate and consistent particle size analysis. We have two models available – the RX-29 is designed for testing with 200 mm (8”) diameter test sieves, either six full-height or 13 half-height, and the RX-30 is designed for testing with 300 mm (12”) diameter test sieves, either four full-height or eight half-height. Both models require sieves to be manually loaded for each test run, and the initial sample and the resulting fractions weighed out by hand.

 Our RO-TAP Sieve Shakers are suited to laboratory setting applications which require a rotary shaking and tapping action. Manufactured from high-quality materials, they are very durable machines and have proven their ability to perform long-term.

HP-SST Fully Automated Sieve Shaker

Fully automatic screening of lump ores and other samples - for maximum accuracy and process reliability.

Developed for ISO-compliant sieving in the mining industry, the HP-SST enables the effective determination of the particle size distribution of a sample by means of screen sieving. The machine can accommodate up to 8 full-height 450mm sieves of different mesh sizes. The machine was developed for integration in robot laboratories and ensures, for example, the determination of the particle size fractions of iron ore samples in accordance with ISO 4701.

The HP-SST is designed for optimized processes. The sample is fed into the HP-SST by the robot via a hopper and the sieving process is started by means of oscillation movements. At this point, the screens are firmly and securely clamped by the clamping unit. Once the sieving process is complete, the clamping unit is automatically moved so that the screens can be removed by the robot.

The screens are automatically emptied and cleaned. The discarded oversize particle fractions are weighed to determine the respective particle size fraction. The emptied sieves are then placed on a separate scale to determine if there are any plugged particles in the sieve. If a certain limit value for the acceptable percentage of plugged particles is exceeded, the sieve can be discharged into a magazine for manual cleaning by the operator. Otherwise, the emptied and cleaned screens are temporarily stored and then reloaded into the automated sieve shaker by the robot in reverse order. The HP-SST is then ready for the next sample.

Models

Compare particle sizing equipment

Key Features
Made from high-quality stainless steel, Meets ISO 3310 standards, Corrosion resistant, Smooth edges for easy handling
3D sieving motion, Electromagnetic drive, Digital display, Lightweight and portable, 10 amplitude settings and digital timer
Applications
Particle size analysis, Sieving of minerals, ores, and other materials
Dry or wet sieving for particle size determination
Sizes
Available in diameters of 100 mm, 200 mm, 300 mm, and 450 mm
Accepts up to 8 full-height 200mm (8”) diameter sieves or up to 16 half-height 200mm (8”) diameter sieves
Special notes
Certified with unique serial numbers and certificates of compliance
Quick-release clamping system for ease of use

Want to talk? Reach out to our experts

Contact us

Frequently asked questions

FAQs for particle sizing equipment

The main purpose of particle sizing is to determine the distribution of particle sizes within a material sample. This is critical because the size of particles can affect the physical and chemical properties of materials.

Particle size by sieve analysis is a method where a sample of material is separated into fractions by passing it through a series of sieves with different mesh sizes. Each sieve retains particles larger than its mesh size, while smaller particles pass through to the next sieve. The mass of material retained on each sieve is weighed, and the particle size distribution is determined based on these weights. Sieve analysis is widely used in industries like mining, construction, and pharmaceuticals due to its simplicity and reliability.

A sieve shaker is a machine used to automate the process of sieve analysis. It shakes or vibrates a stack of sieves containing a material sample to ensure particles are evenly distributed and can pass through the appropriate sieve sizes. The shaking motion replicates manual sieving but with greater consistency and efficiency. Sieve shakers are commonly used in laboratories for particle size analysis in industries such as mining, agriculture, and pharmaceuticals.