1. XZM9A is suitable for processing linear edge with 45 degree chamfer and slot on stone.
2. Rough grinding, fine grinding and polishing of bottom edge can be finished by one time processing.
3. Anti-skid slot can be finished easily on surface.
4. Synchro-lift system of input and output section for controlling the grinding amount of stone without adjusting each spindle individually.
5. Speed is adjusted by stepless variator with speed changing smoothly.