Jr Series Wound Rotor Slip Ring Motor Ball Mill Motor

• Application: Industrial
• Operating Speed: Constant Speed
• Number of Stator: Three-Phase
• Species: Jr /Jr2
• Rotor Structure: Winding Type
• Casing Protection: IP23
• Model NO.: Jr1510-8-570kw
• Number of Poles: 8
• Starting Mode: Serial Rotor Resistance Starting
• Certification: ISO9001, CCC, Ce
• Brand: China Mtoor
• Protection: IP23
• Voltage: 380V/415V/660V/3kv/6kv/10kv
• Nsulation Class: F
• Stator Winding: 100%Red Copper
• Driving: Ball Mill,Steel Rolling Mill,Sugar Rolling Mill
• Cooling Method: IC01
• Rotor Winding: 100%Red Copper
• Advantage: Strong Ability for Instantaneous Overload
• Frequency: 50Hz/60Hz
• Transport Package: Plywood Case
• Trademark: ZCL
• Origin: Shijiazhuang, China
• HS Code: 8501530090
• Production Capacity: 500 PCS Slip Ring Motors Per Month

Product Description

The series JR is a wound rotor 3-phase asynchronous motor meeting technical specifications of ministerial standard JB563-64, which can drive ventilator, compressor, water pump, crusher, ball mill, cutting machine, transportation machinery and other equipment and can be used as a primary mover in mechanical industry, power station and various industrial & miming enterprises. The ratings of the series are based on the values in continuous duty (S1): power 50HZ, rated voltage 220V/380V, 380V, 3000V & 6000V. And we can design motors with voltage rating 3300V/10000V as required by customers.
This series adopts a protection class IP23 for its enclosure; a cooling mode IC01; and ordinarily adopts a structuring and mounting mode IMB3. And we can design it into a vertical mount as required by customers.
he series JR guarantees, at rated voltage, the ration of the maximum torque to rated torque not less than 1.8.
 A starting rheostat must be connected into the rotor circuit in advance before the series JR is started, the starting mode based on short direct connection to rotor windings may not be allowed.

Motor power range: 80KW-900KW
Rated voltage: 380V/415V/660V/690V/3000V/33000V/6000V/10000V
Number of poles: 6/8/10/12
Rated frequency: 50Hz/60Hz
Protection level: IP23
Cooling method: IC01
Working system: S1
Insulation class: B
Wiring method: △
Installation method: B3 (horizontal installation)
Ambient temperature: ≥ -15 ° C and ≤ 40 ° C
      The deviation of the rated voltage of the YRQ ball mill motor does not exceed 5%, the allowable deviation of the frequency is 1%, and the sum of the absolute values of the deviations does not exceed 5%.

YRQ ball mill motor adopts rotor string resistance full-voltage start-up, which has the advantages of small starting current, large starting torque, high efficiency, low noise, low vibration, good ventilation performance, reliable operation and convenient installation and maintenance.


There are many types of motor products manufactured and sold by our company. The main products are high- and low-voltage three-phase asynchronous motors. The motor structure types include squirrel-cage type and winding type. Among them, high-voltage synchronous motors mainly support air compressors and mine ball mill equipment. use. We adhere to the service tenet of "focus on products, service with heart" and provide high-quality motor products to customers.


1. The outer packaging of the products are all standard export-oriented wooden plywood packaging.
2, the product packaging is protected by moisture, water plastic soft packaging
3. For products with special transportation requirements (such as temperature, fragile, variability, and easy to get wet), the packaging protection measures will be strengthened, and the target mark will be printed on the package.
4. There are obvious signs and symbols on the packing box that must be paid attention to during transportation and storage (such as position, moisture, rain, shockproof, lifting position, etc.).


ZCL Electric Motor Technology Co., Ltd. is a company mainly engaged in the manufacture, research and development and sales of motor products. The company has many types of motor products, including IEC standard motors. It is a professional IEC motor manufacturer. Related motor products have passed the product certification in China, the United States, Canada, Europe, the Middle East and other regions, and the products are exported to all over the world. Companies adhere to the "focus on products, service" business philosophy, is committed to improving the quality of safe motor products and services for customers around the world.