The camshaft controls the intake and exhaust valves of a piston engine with the help of mechanical stroke movements. Nowadays, camshafts are made of cast iron and also partly of forged steel. Due to the high mechanical load, these components are surface-hardened.

The high surface hardness is a high challenge to economical grinding processes. EHWA has taken on this issue and developed a special bond for the economical grinding of camshafts. The EHWA specification showed an up to 18% higher stock removal rate with simultaneous high dimensional stability and high surface quality compared to the competition.