JZ,JZR,YZ and YZR series are electric motors for hoister and metallurgical machines. YZ & YZR series three-phase asynchronous motors are new series products designed unitedly in China for hoisters and metallurgical machines. Compared with aeries JZ2 and JZR2, they have increased their efficiency by 1.88%, output by 9.35%, and starting torque slightly. The rating class and mounting dimensions ...