Wienerberger Eisenberg now de-airing roof tiles with variable-speed Atlas Copco pump

New vacuum pump saves 70 % energy

Photos/Fotos: Atlas Copco

»1 The GHS 585 VSD⁺ has a variable-speed motor that adapts its output to the momentary vacuum requirement

Photos/Fotos: Atlas Copco

»2 The pump generates a partial pressure of roughly 30 mbar absolute in the de-airing chamber

»3 Here, the body is shredded and adjusted to the proper moisture content on its way to the de-airing extruder

»4 The de-airing extruder with upstream vacuum chamber

»5 Plant manager Ralf Link at the vacuum chamber

»6 Products on drying supports

»7 Ralf Link with a dry roof tile

»8 In the Palatine municipality of Eisenberg, Wienerberger produces diverse clay roof tiles, including small quantities of plain tiles and other historical models

»9 Ralf Link: “With our new Atlas Copco vacuum pump, we are now saving 70 % on energy!“

Wienerberger produces clay roof tiles at their plant in Eisenberg, Rhenish Palatinate. Prior to shaping, the company de-airs the body with a variable-speed vacuum pump, type GHS 585 VSD⁺ by Atlas Copco, thus saving nearly 70 % on energy for that step of production.

At their plant in Eisenberg, Wienerberger produces all kinds of clay roof tiles, including small quantities of historical tiles like plains for the French market. Along with diverse uniques, such tiles are produced for certain sites on special order. However, the major share of the plant‘s overall output consists of standard-type pressed-clay roof tiles. At plant 3 in Eisenberg, they are produced in a wide variety of sizes, colours and finishes. That is where the new Atlas Copco rotary screw vacuum pump is now on duty, because that is where it achieves its best possible efficiency.