The aircraft applicable to the processing and outside diameter hole 150-500mm circular  glass  outside  edge  or  forming,  such  as  can  be  ground  into  a
cylindrical-edge, round edge, such as duck-mouth. It will be a vacuum on the glass adsorbed  on  the  sucker.  Step-less  speed  regulation  of the  machines
with mechanical motors, drive turntable rotation, the wheel speed during working hours  can be  azbitzary  speed,  speed  sraootb.  The  aizczaft  can  also  use
the der to promote a semi-automatic grinding.First Binding different
thickness of glass, cylinder grinder can use its rapid movements to change
rapidly grinding wheel position or replacement wheel. Replacement of coarse
grinding wheel can be carried out, accurate grinding and polishing.