WCA May 2012

Technology news

Electrostatic powder coating machine from Rolf Schlicht

The electrostatic powder coating machine model RSC of Hamburg, Germany-based Rolf Schlicht GmbH was designed for an even, finely dosable and absolutely dust free powdering of cables, wires, hoses and profiles with powders like talc, stearate, lac powder, swellable powder, etc. By the electrostatic charging of the powder a strong adhesive and even layer on the surface is reached. The electrostatic also makes sure that no powder falls from the product outside of the dusting chamber. Depending on extrusion speed and product diameter, one to four powder guns of 100kV each are used. In the machine there is a fluidised powder hopper out of which the powder is sucked by pneumatic venturi pumps and blown to the guns. For an optimal adjustment of the powder quantity the operator can adjust the power of the electrostatic charging from 0-100kV, the powder quantity and the speed of the dust cloud. Depending on the product the powder gun can be equipped with different powder nozzles. In the machine there is a fully automatic and maintenance-free filter system that is cleaned off by a special process. Thanks to this filter system a strong and constant vacuum is generated in the machine, guaranteeing no escape of the powder. If there is not enough space in the line to place the machine Schlicht can deliver a free-standing dusting

chamber which is connected to the machine by hoses. For an extremely fine powdering of slowly running products Schlicht offers a fine dosing device to make sure that only a minimal amount of powder is transported to the guns. ▲ ▲ Extremely fine powdering from Schlicht machines Rolf Schlicht GmbH – Germany Fax : +49 406 799 4211 Email : info@schlicht-gmbh.de Website : www.schlicht-gmbh.de

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Wire & Cable ASIA – May/June 2012