Test Sieves by Laarmann
The test sieves produced by Laarmann for Orthos are high quality and economically priced. The stainless steel frame has a rolled rim for strength so you can stack them easily without distortion. A chamfered corner from the body frame to the sieve mesh stops your material hanging up like it can do with some other sieves. The sieve mesh is accurately tensioned during manufacture and then soldered in place. To optimise external sealing e.g. for vacuum or liquid applications, Laarmann supply an O-ring seal. Every sieve comes with an individual inspection certificate (not just a general certificate of conformity) included at no extra change – does your current test sieve supplier do that for you?
Each Laarmann sieve has its size specification and serial number laser etched on the frame for hard-wearing, easy identification. You can choose from the following sieve body diameters: 45, 75, 100, 150, 200, 203 (8″), 250, 315, 400, 450mm. With mesh apertures between 20 micron and 125mm.
A range of accessories includes: sieve cover, collection pans (for dry or wet sieving) intermediate collection pan (for multiple sieving in one process) and intermediate cylinders (for increasing the space between sieves). Laarmann also produce sieve shaker machines as well, in three sizes depending on the size of test sieve you prefer.
Download the four page technical brochure (pdf)
…Orthos also offer a range of production-scale sieves from our partners Allgaier Process Technology
Sample Preparation General Information