Sponsored By
Norbert Sparrow

May 11, 2016

1 Min Read
Heat is on for contract molder of PEEK parts for medical devices

Toolcraft (Georgensgmünd, Germany), a supplier of precision parts, assemblies, molds and injection molded parts to the medical, aerospace, automotive and other sectors, has invested in a mold heat controller that maintains a constant temperature level, thus improving product quality in an environmentally responsible manner. The system is specifically intended for the processing of polyetheretherketone (PEEK).

PEEK has a melting point between 370° and 400°C, notes toolcraft, and the material can be processed in its liquid state during injection moulding. Because it is autoclavable, biocompatible and radiolucent, the material is used in a number of medical applications, including hearing aids, which toolcraft produces in a two-shot molding process at its EN ISO 13485–certified facility.

Toolcraft was using cartridge heaters to bring the mold to the required temperature of at least 200°C. Since these heaters are electrical, however, they are slow at conducting heat, making the temperature difficult to control.

"The new equipment enables the tool to be consistently heated to 200°C, the ideal temperature for injection molding PEEK," says Thomas Lender, Head of Injection Molding. Moreover, the system maintains a consistent level of heat using a minimal amount of energy, thus improving the company's environmental footprint while improving repeatability and product quality and reducing cycle times.

About the Author(s)

Norbert Sparrow

Editor in chief of PlasticsToday since 2015, Norbert Sparrow has more than 30 years of editorial experience in business-to-business media. He studied journalism at the Centre Universitaire d'Etudes du Journalisme in Strasbourg, France, where he earned a master's degree.

www.linkedin.com/in/norbertsparrow

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