... connected with electric motor,or gear reducer. electric screw lifts Detailed Informations:For easy installation, Every type worm gear ... motor drive revolutions are not exceed 1800 RPM.electric screw lifts Lifting Speed Formulas: V=R1*P/R2V=R1*TV ... Tunnel freezer systems,Oven lifters,Vacuum furnace lid lifters,Conveyor lifts,Air dampers,Theatre stages,Glass charging machines,Steel manufacturing ...