Speed designed:100m/minute Manual adjust the rotate speed of type Pderailleur in order to change the length of cardboard needed. There are clearance adjustment set and tear parallet set in the gear in the adge roller,thereby assure move placidly,improve precision. Adopt double brace high speed outfit,to make the edge shaft run in non-equality speed,the instantaneous cutting off edge working speed are invariables with the moving speed of cardboard. The rotary shear is driven by a drive shaft from the main drive,in-phase effect is fine,cutting precision is high. Paper cutting range:600-2400mm Cutting off precision:?.5mm(in steady speed) Expiry width:1400mm-2200mm