Contour grinding
KERN-LIEBERS specializes in the precision grinding of pump, injector and other precision parts – typical tolerances for thickness and flatness are less than one micron at an average surface roughness of less than ra < 0,1.
The ground parts can be biconcave (concave on both sides), with a flatness tolerance of 1.5 to 2.5 microns, for example to ensure tightness in injectors, allowing reliable sealing against high pressure with a sealing length of less than 1 mm.
For the machining of precision outer diameters, we use centerless grinding, allowing us to grind even very thin discs or rings cost-effectively in a continuous process. We can achieve tolerance classes of up to IT 5.
Where only sections of parts need to be ground, we use plunge cut grinding. In this process, the part is inserted into the open grinding area and the profiled disc is then applied.
Industry applications
Automotive
Electrical engineering
Building services engineering
Consumer goods
Mechanical engineering and equipment manufacturing
Medical technology
Other