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Steinhaus - Perforated Plates
Perforated sheets are manufactured with matching apertures at regular intervals by means of punching, drilling or milling. Any material, e.g. steel, stainless steel, copper, aluminium or plastic, can be perforated in virtually any technically feasible geometry.
As a standard value, the hole diameter and the bridge width should be no smaller than the thickness of the material used. The perforated sheets can be manufactured with or without an unperforated edge.
Punched perforated sheets always have a slight conical widening on the punch outlet side, causing a punching burr. Burr fineness can only be ensured by additional aftertreatment.
Particularly in the chemical and foodstuff industries, micro-perforated plates have made a significant contribution to solving difficult separation problems, e.g. with centrifuges. They now supplement fine-screen plates made from punch-perforated plates or wire mesh for separating processes that call for the highest precision and optimum throughput.
STEINHAUS supplies micro-perforated plates in the form of sheets and as segments of all kinds in dimensions of up to 1000 x 1000 mm, and thicknesses of 0.07 to 0.75 mm.
The surfaces of micro-perforated plates can, if required, be finished in hard chrome.