How Do Vibratory Screeners And Rotary Sifters Compare

When it comes to safeguarding product quality and screening accuracy, the Russell Compact Sieve – a high-performance vibratory screener - is the most effective and hygienic solution

by Darren Ralphs | Friday 25 March 2016

With an increase in regulations and quality standards, manufacturers are having to review their processes, and seek new ways to optimize production. This means a change of approach in the way a factory operates, from how people work or how stock and space is utilized, to the introduction of alternative technologies. These changes lead to improved product quality, efficiency of production, reduced costs and compliance with environmental standards.

Choosing the correct sieving or screening machine is fundamental in ensuring that the product is processed efficiently and to the highest possible quality. There are numerous technologies available, however rotary sifters have commonly been used to remove oversized contamination from good product, particularly for raw ingredients in the food industry. This is due to their effectiveness at de-agglomerating powders at a high capacity, as well as generally being easy to install. The Russell Compact Sieve®, however, has provided a number of other advantages, and this high-performance vibratory sieve is the most hygienic solution.

Contamination Control
Contamination control is the biggest issue when operating a rotary sieve. In particular, the method of forcing material through the screen in a rotary sieve can cause damage to the mesh, which can be overlooked as the machines are so difficult to disassemble and inspect. This, as well as the constant loss of good product through an oversize outlet, means having to reprocess material, an unnecessary cost and use of time. The Russell Compact Sieve® facilitates sieving through a vibratory motion, which is far less strenuous on the mesh, and any ferrous contamination that does enter the pan can be removed by the addition of a Russell Easy-Clean Magnetic Separator™.

Improved Usability
Compared to the design of a rotary sieve, the Russell Compact Sieve® is considerably more operator-friendly. With an innovative quick-release clamping system, no tools are required to disassemble, meaning that changing the screen or cleaning the machine is quick and safe, reducing downtime. Also, maintenance costs are reduced, with fewer wearing parts that would have to be replaced regularly. In addition, with it’s a lower noise level (typically 70DBA), and enclosed sieving compartment, the benefits of this machine satisfies the requirements of quality and safety supervisors.

Sanitary Design
The Russell Compact Sieve® has been designed to provide the most hygienic solution possible. With fewer contact parts, and a fully stainless-steel design, the machine is easy to clean and maintain, an important factor in industries such as food and pharmaceutical. Rotary sieves can have many hidden areas and crevices that act as bug traps, and, being extremely difficult and time-consuming to take apart and clean, hygiene cannot be guaranteed.

High Capacity, Compact Design
The Russell Compact Sieve® delivers maximum efficiency during the production process. Its inline, compact design makes it half the height of a traditional sieving machine, fitting neatly into any part of the production line. Its compact design does not mean a sacrifice in production capacity, however, achieving higher throughput per unit mesh area than conventional screeners. In some cases, particularly when screening sticky powders, rotary sieves are prone to blinding. The Russell Compact Sieve® is better suited to these difficult powders, and with the optional upgrade of the Russell Vibrasonic® Deblinding System, enables even higher screening capacities, as well as accurate grading down to 20 micron. This fine mesh sieving technology prevents mesh blocking, and has revolutionized the way difficult powders are sieved.

A wide range of sizes and specifications means the Russell Compact Sieve® can be tailored to suit your exact needs, and is ideal for high capacity safety screening of powders and liquid slurries. For more information, contact us today.


Martin Chipperfield
Russell Finex Ltd
+44 20 8818 2000

Friday 25 March 2016 / file under Chemical | Environmental | Food and Beverage | Metals