Profile: Ningbo Jirun Electric Machine Co., Ltd. specializes in the manufacture of AC and DC electric motors. We supply motors according to IEC and NEMA standards. Our products include YEJ Series AC squirrel cage brake motors, YB2 series explosion-proof three phase induction motors, YZR,YZ series for cranes & metallurgical industry, Y2 EFF1/EFF2 series AC motors, NEMA frame ODP & TEFC high efficiency AC motors, medium voltage, & high voltage high power AC motors. We design and manufacture different kinds of A.C. and D.C. motors according to the requirement. The Z4 series DC motors are dominant products of our factory. The products are widely used in various machinery such as mill auxiliary in metallurgical industry, metal cutting machine tool, paper making, print textile, painting & dyeing, cement-making, plastic extruding machine, and woodwork machine. ZFQZ often starting and braking DC motors are developed on the basis of Z4 series and ZZJ-800 series DC motor. The motors are suitable for direct and reversal rotation, & start and stop in high frequency in a bad working circumstance. ZZJ-800 motors are a kind of DC motor used for metallurgy & hoisting. These are available for steel rolling machine, crane, elevator and electric excavator. The motors have lower moment of inertia(GD), higher overload capacity, and quicker speed response so that it is possible to undergo frequent starting, braking, and repeated change of direction of rotation. The motors are reliable, perform well in speed regulating, and can be operated suitably on thyristor continue rolled supplies.