This model is designed for grinding inside radius of taper and parallel brake lining. Hydraulic clamping and slow in/fast out advance make it easy to operate and applicable in a wide range. Operations are completely automatic except brake lings loading or unloading manually. Adjustable clamp is suitable for different diameters and thickness diversities as well as for taper brake lining which the center of inside and outside radius varies. It is the most common used model in method of processing parallel brake linings.