Technical parameter: 1.Design speed: 100-250M/min 2.Avaiable width: 1400-2500mm Characteristics: The dia. of up drive roll is 900mm, the lower roll is 650mm with mid-high design, covered with wear-resistant rubber.Driving gear box with oblique gear for strong torque, that makd of alloy steel, and the surface is heated and grinded, low voice.Bearing part with pump oil lubrication, gear is auto-splash lubrication.Main drive is inverter motor, large speed scope and drive stable.Single driving box, two axis drive separate, bigger one ensure the double facer stability and dependability in high speed.The main shaft of the driving gear box equipped synchronism device, keeping same pace with double facer.