low voltage induction motor
Voltage range：380V±5%
Power range：45-800kW
Protection level：IP23
Application：YRQ(JR) series medium-sized motors can drive a variety of different machinery, such as fans, compressors, water pumps, crushers, ball mills, cutting machine tools, transportation machinery and other equipment, and can be used in coal mines, machinery industries, power plants and various industrial and mining enterprises. Used as prime mover.
Advantage: The JR series medium-sized motors have very powerful driving capabilities and can not only drive conventional mechanical equipment, but also some complex mechanical equipment. For example, it can drive heavy machinery such as ships, cranes, and wind turbines, as well as small household appliances, purifiers, compressors, etc.
Others： SKF, NSK, FAG bearings can be replaced according to customer requirements.
- Product Description
Low Voltage Induction Motor Manufacturer and Supplier
Low voltage induction motors serve as the backbone of countless manufacturing processes, driving everything from conveyor systems to heavy-duty crushers. However, many facilities struggle with inconsistent motor performance, excessive energy consumption, and inadequate technical support when challenges arise. Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd. (XCMOTOR) addresses these concerns by delivering robust motor solutions backed by over 20 years of industry expertise. Our YRQ series wound rotor motors operate within 380V±5% voltage range, offering power outputs from 45kW to 800kW with IP23 protection. These motors meet demanding industrial requirements while maintaining exceptional reliability.
Pain Points vs. Solutions
Your Challenge: Equipment failures during critical production periods cost you time and revenue.
Our Solution: We supply motors featuring SKF, NSK, and FAG bearings that extend operational lifespan and reduce unplanned downtime.
Your Challenge: High starting currents damage your facility's electrical infrastructure.
Our Solution: Wound rotor design with external starting resistors significantly reduces inrush current, protecting your power grid during heavy-load startups.
Your Challenge: Finding motors that withstand harsh industrial environments.
Our Solution: IP23 protection level ensures reliable performance in coal mines, power plants, and manufacturing facilities where dust and moisture are present.
Your Challenge: Limited flexibility when driving varied mechanical loads.
Our Solution: Stepped speed regulation through rotor circuit resistors adapts to different operational requirements without expensive variable frequency drives.
Technical Advantages of low voltage induction motor
Our products deliver exceptional performance through carefully engineered design elements. The wound rotor construction generates high starting torque while maintaining low starting current—ideal for ball mills, crushers, and conveyor systems. The slip ring and brush assembly enables external resistance connection, giving you precise control during startup sequences.
Heat dissipation receives special attention in our design. Optimized cooling air ducts prevent overheating during continuous operation. The three-phase asynchronous configuration provides stable power transmission with minimal vibration. Strong shock load resistance makes these motors perfect for mining hoists and metallurgical equipment where sudden load changes occur frequently.
Production Process
Quality begins with component selection. We source bearings exclusively from SKF, NSK, and FAG—brands known for precision and durability. Our SAP factory management system tracks every production stage, ensuring consistency across all units.
Stator and rotor windings undergo rigorous winding procedures with premium-grade copper conductors. Insulation materials meet international thermal class standards. Each motor passes multiple inspection points including balance testing, insulation resistance measurement, and no-load running verification.
Before shipment, comprehensive performance testing validates torque characteristics, efficiency ratings, and thermal behavior under simulated load conditions. This thorough approach guarantees you receive motors ready for immediate installation.
Industry Applications
Mining Operations: Drive ball mills, hoists, and heavy conveyors where high starting torque is essential.
Power Generation: Support auxiliary equipment in power plants requiring dependable performance under continuous duty.
Metallurgy: Power winches, crushers, and material handling systems that face frequent load variations.
Port Facilities: Operate lifting equipment and cargo handling machinery in demanding maritime environments.
Manufacturing: Run compressors, cutting machine tools, and transportation machinery across diverse industrial sectors.
Customization Capabilities
Every facility presents unique requirements. We adjust motor dimensions to fit your installation constraints. Bearing specifications can be modified based on load characteristics and maintenance preferences. Voltage tolerances adapt to your local power grid conditions.
Terminal box positioning changes according to your piping and cable routing needs. Mounting configurations—from horizontal to vertical or flange arrangements—match your machinery layout. Our engineering team collaborates with you to determine optimal specifications before production begins.
Reliability Testing & Certifications
All low voltage induction motors from XCMOTOR carry essential quality certifications. Our products comply with CCC and CE standards, demonstrating conformity with Chinese and European safety requirements. ISO9001:2000 certification validates our quality management systems.
Railway applications benefit from CRCC certification. CQC quality management and ZDHY environmental management certifications reflect our commitment to comprehensive excellence. We also hold China energy-saving production certification, confirming our motors meet national efficiency targets.
Why Choose XCMOTOR
Established Relationships: We are in partnership with more than 30 motor manufacturers like ABB, Siemens, Wolong, NEC, and SIMO, which gives us access to authentic components and technical expertise.
Complete Solutions: In addition to motors, we can also give brand ideas, series recommendations and particular model choices for your application.
Competitive Advantages: Genuine parts from reputable companies. Fast shipping. 30-day return policy. Dedicated assistance – even on the weekends.
Technical Skills: Our seasoned R&D department rapidly handles intricate pre-sales and post-sales problems, reducing your operating downtime.
Flexible Logistics: We provide customized transport options according to your delivery needs, including sea freight, land transport, air shipping, and multimodal combinations.
FAQ
Q：What is JR series low voltage wound rotor motor?
A：JR series are general industrial low voltage three-phase wound rotor aSynchronous Motors, equipped with slip ring and brush assemblies. External starting resistors can be connected to the rotor. They fit 380V industrial power grids and are mainly applied to heavy-load startup conditions.
Q：What core advantages does JR motor have compared with cage motors?
A：High starting torque and low inrush starting current effectively reduce voltage drop impact during heavy startup. Stepped speed regulation is realized by series resistors on rotor circuit. Strong capacity to resist shock loads suits frequent startup and loaded-start machinery. Stable operation and low failure rate benefit heavy mining and metallurgical equipment.
Q：Is direct short-circuit startup of slip rings allowed for JR series motor?
A：Direct slip ring short-circuit startup is strictly prohibited. All starting resistors must be connected to rotor circuit before startup, and resistors shall be cut off step by step during acceleration. Direct short-circuit will generate huge surge current and burn stator and rotor windings. Slip rings can only be short-circuited for continuous operation after the motor reaches rated speed.
Q：What application fields and equipment are JR motors suitable for?
A：Applicable to mining ball mills, mine hoists, heavy belt conveyors, metallurgical winches, crushers, and port lifting equipment. Not recommended for ordinary fans, water pumps, or long-term light-load variable frequency speed regulation scenarios.
Q：What regular maintenance items are required for JR wound rotor motor?
A：Clean carbon powder from slip rings and brushes, check wear and calibrate spring pressure. Refill high-temperature grease regularly in bearings, listen for abnormal noise and test vibration. Check terminal overheating and resistance sheet ablation in rotor starting resistance cabinet. Measure winding insulation resistance every half year under humid conditions. Clean dust accumulated in cooling air ducts to avoid overheating and overload.
Contact Us
Ready to enhance your low voltage induction motor facility's power transmission reliability? Our technical team stands ready to discuss your specific motor requirements and recommend optimal solutions.
Email: xcmotors@163.com
