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KERN-LIEBERS technology: the best thing that can happen to a spring.
From innovative product development to reliable processes for high volume production with a high level of vertical integration.
Wire springs are manufactured for the most part from spring tempered round wires and profiles. The winding or coiling of the spring introduces high internal bending stresses that have a negative impact on the spring properties in terms of service life and usable spring force. Most of these stresses can be removed with a heat treatment process adapted to the material, at the same producing an increase in the initial strength and an increase in the elastic yield strength in the material.
We set the properties of the springs to their optimum values with defined heat treatment regimes. We have a wide range of heat treatment systems in place, including convection, inert gas and vacuum furnaces.
For special materials, for use for example in high-temperature applications, we can offer systems with temperatures of up to 1,350° C. We can also offer springs with special individual or mixed goods hardening processes on customer request.