Materials of lens acceptable: 

mineral glass/plastic/polycarbonate

Selecting switch to change the rotating direction.

5 types wheels options

Input Voltage:                

110/60Hz or 220V/50Hz

Power:                        

150W for A grade,120W for B grade,100W for C grade

dimensions:                   

360(L)x200(W)x288(H)

Weight:                        

8kgs(net)

Wheel options:

35W:

Width 35mm,right rough grinding 16mm(180#),left fine grinding 19mm(240#,280# or 320# for choosing)

35WV:

Width 35mm,right rough grinding 16mm(180#),left fine grinding 19mm(240#,280# or 320# for choosing),edge trueing groove

35V:

Width 35mm,large surface fine grinding(240#,280# or 320# for choosing),trimming by trueing groove

30V:

Width 30mm,large surface fine grinding(240#,280# or 320# for choosing),trimming by trueing groove

30:

Width 30mm,large surface rough&fine grding(180#,240#,280# or 320# for choosing)

20:

Width 20mm,Usual rough grinding(180#,240#,280# or 320# for choosing)