The right choice of materials and the individual components is key for the perfect functioning of machines and plants.
Knörzer springs made of “high-quality spring steel” correspond to material No. EN 10270-1 SH/DH (item No. 1 of the materials table for cold-coiled springs).
Knörzer springs made of “stainless steel” are corrosion-resistant and suitable for use with foodstuffs. They correspond to material No. EN 10270-3 (item No. 4 of the materials table for cold-coiled springs).
Knörzer volute springs are made of spring bronze (item No. 10 of the materials table for cold-coiled springs). Thanks to their good electrical conductivity they are particularly suitable as battery compartment springs. We recommend the materials from the table below for custom-made solutions available at short notice.