Double sided hollow grinding is used for blades of kitchen and steak knives, hunting and sports knives, pocket knives, and handtools e.g. saw blades
This type of machines utilizes 2 cup wheels, each wheel at an angle of 45° to the blade. This arrangement results in an consistent hollow bevel shape over the entire wheel life. Depending on the thickness of the blank, the bevel width, and edge thickness required, a grinding wheel with a suitable inside diameter and wall thickness is chosen so that the resulting outside diameter corresponds to one of the readily available sizes.
For more than 70 years, BERGER has been building grinding and polishing machines which are designed specifically for the demands of the cutlery and hand tool manufacturing industry, but also for utilization in other branches of metalworking.