
Precision Coil for DC Drive Systems
Hangzhou Purun Science & Technology Co., Ltd. was founded in 2004. We have 22 years of coil manufacturing history. Our factory covers 2,500 square meters. We employ 32 people including skilled technicians and managers. We have our own R&D capabilities. We work with major domestic power equipment manufacturers like Harbin Electric and Dongfang Electric. We hold environmental and occupational health safety certifications. Our production is green and compliant.
Strict Material Selection and Process Control
This DC motor coil is designed for DC motors and speed-controlled motors. Our strength lies in material selection. We have strict standards for copper and insulation materials. All raw materials are inspected before production. We check conductivity and heat resistance ratings. During manufacturing, we use flat winding machines and oxygen-free annealing furnaces. These ensure tight turns and no stress deformation. Every finished piece undergoes resistance testing and voltage testing. We keep records of all test data.
Real-World Performance Improvement
We solved an overheating problem for a mine hoist manufacturer. Our DC motor coils reduced heat and extended equipment running time by 30%. This case shows our expertise in material matching and process control. For new customers, we can provide similar product samples for evaluation. We cannot offer free samples because tooling costs are high.
Customization and Commercial Terms
The MOQ for DC motor coils is 1 piece. Tooling fees apply. Custom development takes about 45 days. We accept customer-provided drawings or samples. We can also recommend the best insulation structure based on the application (hoisting, rolling, or tram). Payment terms: 50% deposit, balance before pickup. We use professional wooden or iron cases for packaging. This ensures safety for long sea voyages. Trade term is EXW. Customers arrange their own logistics.
Specifications
|
Parameter |
Specification |
|
Applicable Motors |
DC motors, speed-controlled motors |
|
Voltage Range |
220V ~ 750V (customizable) |
|
Insulation Class |
Class F / Class H |
|
Resistance Deviation |
≤±2% |
|
Voltage Test |
2x rated voltage + 1000V, 1 minute |
|
Custom Lead Time |
45 days |
|
MOQ |
1 piece (tooling fee applies) |
|
Sample Policy |
Similar products for reference; no free samples |
|
Packaging |
Professional wooden/iron cases |
Hot Tags: dc motor coil, China dc motor coil manufacturers, suppliers, factory

