Trust cylinder guarantee the equal pressure left & center & right it drives accurate pick up rate.Variety working-Dyeing & finishing & impregnating of textile.High efficient inverter motor, speed controllerDigital tachometer control a precise rotating speed in low speed & high speed.Front air regulator makes user be able to adjust air pressure through precise pressure gauge.Ergonomic shape & compact design.Safety device-Two protector between roller and emergency stop switch & bar.