Canadian Plastics

Multi-component machine produces polycarbonate windows

A German company is using swivel-platen technology combined with multi-component injection molding to produce polycarbonate automotive side windows and sunroofs. Freeglass GmbH & Co, KG, in Schwaikhei...

October 1, 2003   Canadian Plastics



A German company is using swivel-platen technology combined with multi-component injection molding to produce polycarbonate automotive side windows and sunroofs. Freeglass GmbH & Co, KG, in Schwaikheim, is using a Krauss-Maffei swivel-platen machine in an expansion-compression molding process to manufacture the parts. The swivel-platen machine allows extremely long material flow paths into the mold-fixing area, providing the ability to produce large-area parts which are virtually free of internal stresses. A post-molding operation applies a coating for UV-protection and scratch resistance.

Substituting polycarbonate for glass provides significant weight savings. The polycarbonate sunroofs produced by Freeglass weigh over three kilograms less than a conventional glass module.

Krauss-Mafei Corp. 859-283-0200

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