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When to Sieve and When to Filter

February 6, 2015

What is the difference between sieving and filtration while processing liquids?

Russell Finex don’t just specialize in the sieving of powders, but also handle a wide range of liquid applications. Russell Finex filter and sieve a vast array of liquids, including chemicalsinkspaintswaterliquid chocolatehoney and even malt whisky.

However, when faced with a specific application Russell Finex engineers must decide on the best machine for the job – a Russell self-cleaning filters or a check screening machine.

The range of industrial filters offer the following benefits:

  • Fully enclosed system
  • Can operate under pressure – meaning increased throughputs
  • Continuous cleaning of the screen
  • Quieter in operation than a screening machine
  • Robust screens

The range of sieves offer the following benefits:

  • Open system, which is sometimes preferred for screen inspection
  • Can handle large volumes of oversize material
  • Low and high speed versions available depending on product viscosity
  • Multi-screen separations can be achieved on one unit
  • Screens can be re-meshed – cost effective


Both types of unit come in a range of sizes to suit your throughput requirements and can be stripped down without tools for ease of cleaning. Sometimes your specific application could be served equally well by both units, but in most cases your application needs will dictate that one type of unit may have the edge over the other. Use the Machine Selector to find the right machine for your application or Contact Us with your specific needs.

That is where Russell Finex’s 90 Years of experience in sieving and filtration comes into play. Put experienced engineers to the test who will help find the right machine for you. With specialized test and research facilities in the UK, US, Belgium, India and China, you are able to test material and equipment under controlled conditions to provide you complete peace of mind before purchase. These technology centres can adapt to a wide range of testing conditions, recreating your processing environment as closely as possible. Test videos of trials can also be provided for review by you and your colleagues. Alternatively equipment is also available for testing at your production facilities where the separation equipment will ultimately be installed.

Contact us

Our team of experts are ready to help find you solutions tailored to your specific needs.