This machine is used to grind the hemline and two chamfering of flat glass .Rough feed,fine feed and polishing can be completed by one time process.It use felt wheel and cerium oxide to polish hemline which is as shiny as the surface of glass. It adopt the stepless motor adjust the speed,there are “quick” and “slow”two range of speed,can change speed smoothly in a big range,easy operation.It is the most popular in glass processing.