It can grind and polish flat edge with arrises. It adopts mechanical stepless speed adjustment and can be adjusted to suit different thickness glass. Major Technical Specification Speed 0.5-5(m/min) Max. Grinding Amount 3(mm) Glass Thickness 3-25(mm) Min. Glass 80x80(mm) Total Power 22.8(Kw) Dimension 6.6x1.1(M) Weight 2850(kg) Max. Glass 3000x3000(mm)