Gebr. Becker Gmbh

Gebr. Beckey Gmbh

Bernhard Radermacher

Achim Von Kathen

Ulli Kriebel

Frank Diedrichsen

Artjom Kraft

Carsten Posser

Carsten Bender

Christian Radau

Markus Dabruck

Daniel Simon

A method for operating a metal printing device has an enclosure in which the metal printing is carried out, the enclosure having an inlet and an outlet, and a fan also being provided, with which the atmosphere in the enclosure can be regenerated, a device also being provided in order to be able to extract particles in particular after a printing process is complete. In a first method step, process gas is extracted from the enclosure and conducted through a regeneration device in order to clean the atmosphere in the enclosure. In a second method step after the printing process is complete, excess particles are removed from the enclosure. A suction fan having a suction line connection is provided, wherein the mode can be switched over using a switchover device connected upstream of the suction fan.

Method and apparatus for operating a metal printing device

An oil-lubricated rotary vane vacuum pump includes a rotary vane unit, having a rotary vane chamber and a rotary vane rotor, and an oil separator device having an air/oil separating unit that has a filter element with a plug-in ring that can be plug-connected on a housing side. The plug-in ring is designed for radial sealing and axial displaceability in a housing receptacle. The filter element has a moulding for bayonet mounting, which faces the end associated with the outer wall. A mounting wall of the housing, extending at a distance from the outer wall of the housing, is designed to interact with the moulding of the filter element and to form the bayonet mounting. A separate cover closes a mounting opening associated with the filter element in the outer wall of the housing. The cover form-fittingly interacts with the filter element to secure the filter element against rotation.

Oil-lubricated rotary vane vacuum pump

The invention relates to a radial fan (), preferably a high-speed radial fan, comprising a blower wheel (), a housing () which receives a rotor () and a stator () of an electrical drive () of the blower wheel shaft (), and a cooling system. The aim of the invention is to develop one such radial fan in terms of the cooling system required. To this end, paths () for a first cooling medium (K) and a second cooling medium (K) are provided in the housing (), the second cooling medium (K) being cooled by the first cooling medium (K) as provided for by the housing (), and the paths () are separated from each other by intact material walls () of the housing ().

Radial fan

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Mönchengladbach, Germany

Bernhard Radermacher