Rooted in industrial motor R&D and manufacturing, our company focuses on heavy-load supporting equipment for the building materials industry. Leveraging mature R&D, design and production capacity for high-power electric motors, we have successfully delivered a benchmark product - the 7,000 kW wound rotor three-phase asynchronous motor specially designed for cement ball mills.
This model is tailor-made for core heavy-load equipment of large cement production lines, featuring core advantages including 7,000 kW rated power, 1000 mm center height and integrated slip ring structure. It serves as the optimal driving solution for heavy-duty cement grinding mills.
Core Technical Parameters (IEC Standard Specification)
|
Item |
Technical Index |
|
Driven Equipment |
Cement Grinding Mill |
|
Product Type |
Wound Rotor Three-Phase Asynchronous Motor |
|
Center Height |
1000 mm |
|
Rated Power |
7000 kW |
|
Rated Voltage |
10,000 V |
|
Rated Speed |
995 r/min |
|
Rated Frequency |
50 Hz |
|
Degree of Protection |
IP55 (IEC 60529) |
|
Cooling Method |
IC611 (IEC 60034-6, closed-circuit air-to-air cooling) |
|
Slip Ring Layout |
Built-in Integrated Structure |
Integrated Built-in Slip Ring Design - Optimized Dust Resistance & Heat Dissipation
2.Directional Independent Cooling Air Duct Adopting IC611 closed circulation cooling system with dedicated ventilation branches, eliminating local hot-spot accumulation inside the motor.
3.Compact Integrated Layout Eliminates external independent slip ring housing, shortening the overall axial dimension, and providing superior installation solutions for technical renovation projects with limited foundation space.
4.Tool-free Slide Cover Maintenance Slide-type inspection hatches allow single-person carbon brush replacement without dismantling end shields, drastically cutting routine maintenance man-hours.

Heavy-Duty Base Frame Structure - Robust Mechanical Performance for 1000 mm Center Height

Reference Project Cases





Brand Strength & Outlook
With deep expertise in heavy-duty motor manufacturing, CNDK Shenyang Electric Manufacturing demonstrates outstanding technical capabilities through the successful commissioning of this 7,000 kW wound rotor motor. It fully proves that domestically manufactured high-voltage heavy-duty motors can fully substitute imported equipment and support high-end global industrial production lines.
Moving forward, CNDK Shenyang Electric Manufacturing will continue to focus on the R&D and production of large high-voltage motors, delivering reliable "Made-in-China" power drive solutions for industrial clients worldwide.





