Product category:
Valve Hardware (Filters, Flow Controls, Positioners etc)
News Release from: Tecan | Subject: Sieves and meshes
Edited by the Engineeringtalk Editorial
Team on 17 January 2005
High-accuracy sieves have super-fine
apertures
Sieves and meshes for the most demanding medical, pharmaceutical and bio-engineering needs are now available from Tecan.
Sieves and meshes for the most demanding medical, pharmaceutical and bio-engineering needs are now available from Tecan They can be produced in standard and bespoke forms to offer, screening, filtering and particulate processing accuracy levels which are unmathched in the industry
This article was originally published on Engineeringtalk on 13 Dec 2005 at 8.00am (UK)
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Mesh technology improves sieving
Tecan has developed technology that ensures fine particulate materials can be 100% accounted for during sieving processes.
Ultra-fine sieves offer durability boost
Hoganas' old woven-wire sieves would typically last just two to six weeks, as they are delicate and easily damaged during handling or cleaning.
By employing leading-edge photo electroforming (PEF) techniques, believed to be the most advanced in the world, the company is producing high-accuracy sieves with super-fine apertures which are highly consistent across the mesh.
The sieves can be supplied in ASTM (American Society for Testing and Materials) standard frames, and unlike traditional frames, can meet or exceed the standard's aperture tolerance requirements.
PEF produces highly accurate sieves with repeatable consistency, at the lowest possible cost.
Typical applications include medical, pharmaceutical and food processing markets demanding the highest standards.
The new sieves are fabricated in hard nickel, as opposed to the traditional soft nickel, this significantly boosts operational life, especially where abrasive materials are being processed, such as industrial diamonds.
Easy cleaning and long operational life are resultant advantages of PEF technology.
Unlike traditional woven products, the single-sheet sieves do not have crossover areas, such as those found in woven-wire sieves.
This brings a range of benefits, including the elimination of contamination due to trapped debris, no delamination at the edges, consistent cross-sectional thickness and consistently accurate aperture shapes and sizes.
If desired, the sieves can be gold-plated, in-house, for custom needs.
Sieves can be supplied in standard 3in polycarbonate diameter frames, or 8in stainless steel frames, the latter can be full-depth (2in) or half-depth (1in).
In all cases, the sieves may be specified with or without integral hard-nickel support grids.
Furthermore, the company can also supply sieves with no frames, again with or without integral support grids.
All apertures are highly accurate and, regardless of the aperture size, or shape (square/round), have tolerances of +/-2um.
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