With CE certification, good qualiIty with best price. Offset printing machine, grinding machine,roll grinder Introduction:This three roll mill/grinder/mixer adopts ... (rpm): 400Main motor power (kW): 55Pressure of hydraulic system (MPa): 6.3 x 2Pressure power (kW): 2.2Machine weight (kg): 5 ... rolls mill/grinding machines/roll grinder,three roll mill.. Offset Printing Machine-Three Roll Mill