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The result of a sieve analysis can only be exact and reproducible when using a sieve shaker that fulfils all the necessary technical requirements. The RETSCH sieve shakers AS 200, AS 300 and AS 450 of the "control" series meet the demands for worldwide reproducible sieve analyses - even after short sieving times! 

The sieve shakers operate with a patented electromagnetic drive that produces a 3-D throwing motion and causes the spring-mass system to oscillate, thus giving the clamped sieves a horizontal to and fro movement. The 3-D effect ensures the optimal use of the open sieve area and lets the sample move equally over the whole sieving surface.

Further advantages:

• high stress capacity,
• extremely smooth operation,
• short sieving times with high separation efficiency
• sieving time and movement can be set digitally and are carried out reproducibly 

The working principle and operation of the RETSCH sieve shakers are now presented in an operation & application video which can be downloaded easily from the website www.retsch.com. It is available for potential buyers all over the world and only takes a few minutes to watch. In this video, the unique performance features of the "control" series are presented with the help of realistic computer animations.

Download brochure at www.retsch.com/as.

RETSCH also provides high-quality analytical sieves in various frame sizes which allow for contamination-free sieving thanks to a manufacturing technique which is unique in the world.  

Retsch is a global company dedicated to providing novel technologies and high quality tools for the sample preparation of solids used in R&D and QA applications as well as small scale production. For more information about Retsch's complete product line of mills and grinders, sample dividers, sieve shakers and test sieves, please contact us on phone + 49 2129/5561-0.