This machine is used to process the hemline and 2 chamfering of flat glass,can process double edge one time.Rough feed,fine feed and polishing can be finished by one time,include pneumatic polishing and PLC automatic controlling,can set the parameter in interface,It adopted of lead screw driving,and dovetail slider,belt driving adopt the inverter stepless reducer.It is easy to operate and has good quality grinding and high precision.