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Why choose us?
Shanghai Pinxing's Expertise in High-Voltage Motor Manufacturing
Shanghai Pinxing Explosion-proof Motor Co., Ltd. has developed specialized capabilities in high-voltage electric motor production through two decades of focused research and industrial application. Our manufacturing facility incorporates dedicated production lines for high-voltage motor assembly, with particular emphasis on insulation system application, precision rotor balancing, and comprehensive testing protocols. The company maintains certification for producing motors up to 13.8kV, with frame sizes extending to 1000mm mounting height.
Technical Development and Quality Assurance
Our engineering team has implemented proprietary design methodologies for high-voltage motor optimization, including finite element analysis for thermal management, electromagnetic field simulation for performance prediction, and vibration analysis for mechanical reliability. Quality control procedures exceed standard industry requirements, with each motor undergoing individual testing that includes partial discharge measurement, insulation resistance verification, and load performance validation under simulated operating conditions.
Industry Recognition and Standards Compliance
Shanghai Pinxing's high-voltage motor production adheres to multiple international standards including IEC 60034, IEEE 841, and GB/T standards for Chinese market requirements. The company's manufacturing processes have received certification from independent testing laboratories, confirming compliance with efficiency classifications from IE1 through IE4 depending on specific customer requirements and application needs.
Popular Industries And Applications
Industrial Power Generation
High-voltage motors serve as primary drivers for critical equipment in power generation facilities, including boiler feed pumps, forced draft fans, induced draft fans, and circulating water pumps. These applications demand motors capable of continuous operation with minimal maintenance intervals, often in environments with elevated ambient temperatures and varying load conditions.
Mining and Mineral Processing
In mining operations, high-voltage motors power crushers, grinding mills, conveyor systems, and ventilation equipment. The harsh operating conditions in mining applications require motors with enhanced protection against dust ingress, mechanical shock resistance, and the capability to withstand frequent starting cycles under load.
Water and Wastewater Management
Municipal water treatment plants and industrial wastewater facilities utilize high-voltage motors for large pumping stations, aeration systems, and sludge handling equipment. These applications often involve motors operating in humid or corrosive environments, necessitating specialized protective coatings and corrosion-resistant materials.
Petrochemical Processing
Refineries and chemical plants employ high-voltage motors for centrifugal compressors, process pumps, and large mixing equipment. The explosive atmospheres present in many processing areas require motors designed with appropriate explosion-proof certifications and enhanced reliability features to prevent production interruptions.
Cement Manufacturing
Cement production facilities utilize high-voltage motors for kiln drives, raw mill operation, and finish grinding applications. These motors must accommodate high inertia loads, frequent start-stop cycles, and operation in dusty environments while maintaining consistent performance over extended service periods.
Hardcore Parameters
| Parameter Category | Specification Range | Measurement Standards |
| Voltage Rating | 3kV, 6kV, 10kV, 13.8kV | IEC 60038, ANSI C84.1 |
| Power Range | 200kW to 10,000kW | Continuous duty rating |
| Frequency | 50Hz, 60Hz, or dual frequency | ±5% tolerance |
| Frame Sizes | H355mm to H1000mm | IEC 60072-1 dimensions |
| Efficiency Class | IE2, IE3, IE4 available | IEC 60034-30-1 |
| Insulation Class | Class F (155°C) standard, Class H (180°C) optional | IEC 60085 |
| Protection Degree | IP54, IP55, IP56 standard | IEC 60529 |
| Cooling Methods | IC611, IC81W, IC416 | IEC 60034-6 |
| Mounting Arrangement | IM B3, IM B35, IM V1 | IEC 60034-7 |
| Service Factor | 1.0 standard, 1.15 available | Continuous operation rating |
| Ambient Temperature | -20°C to +40°C standard | Higher ranges available |
| Altitude | Up to 1000m standard | Derating above 1000m |
| Bearing Types | Deep groove ball bearings, cylindrical roller bearings | SKF, FAG, NSK available |
| Vibration Level | Grade A per ISO 10816-3 | Lower grades available |
1-Minute Selection Guide
Insulation Material Selection
Insulation material selection depends on operating voltage, ambient conditions, and reliability requirements. For standard industrial applications, mica-based tape insulation with epoxy VPI treatment provides balanced performance. In environments with high moisture or chemical exposure, polyesterimide or polyamide-imide materials offer enhanced resistance. For applications requiring maximum thermal endurance, materials rated for Class H (180°C) operation with inorganic components provide extended service life in elevated temperature environments.
Bearing System Configuration
Bearing selection considers load characteristics, speed, and lubrication requirements. For motors with horizontal mounting, deep groove ball bearings typically support the non-drive end while cylindrical roller bearings handle radial loads on the drive end. In vertical mount applications, angular contact bearings or specially configured thrust bearings accommodate axial loads. Bearing materials range from standard chrome steel for most applications to stainless steel or ceramic hybrids for corrosive or electrically problematic environments.
Structural Material Options
Frame construction materials include cast iron for standard applications requiring vibration damping, fabricated steel for customized dimensions or special mounting requirements, and aluminum for weight-sensitive installations. Surface treatments range from standard painting systems to specialized epoxy coatings for chemical resistance or zinc-rich primers for corrosion protection in marine environments.
Customized services
Custom Engineering Services
Shanghai Pinxing provides comprehensive custom engineering for high-voltage motor applications. Our technical team collaborates with customers to develop motor specifications addressing specific voltage requirements, starting characteristics, cooling constraints, and mounting configurations. Modification services include custom shaft extensions, specialized terminal box configurations, auxiliary device integration, and compliance with customer-specific documentation requirements.
Prototype Development and Testing
For unique application requirements, we offer prototype development with full testing validation. The process includes design review, material selection, manufacturing oversight, and comprehensive performance testing. Prototype motors undergo the same rigorous testing procedures as production units, with additional verification of application-specific performance parameters.
Batch Production Flexibility
Our manufacturing facilities support production quantities ranging from single units to batch orders of 50+ identical motors. Production planning incorporates customer scheduling requirements while maintaining quality consistency across the production run. Documentation packages are tailored to customer needs, with options for extended warranty periods and technical support agreements.
