A H:  Auto cross feed (stepper motor), hydraulic longitudinal feed, manual vertical feed. It is economical model and can meet the minimum grinding requirements.

AHR: Auto cross feed (stepper motor), hydraulic longitudinal feed, rapid vertical feed (motor).It can improve the efficiency of tool setting , loading and unloading .

AHD: Auto cross feed (stepper motor), hydraulic longitudinal feed, automatic vertical feed (servo motor). Siemens 7”PLC+HMI with built-in program. It is so easy to realize auto grinding