
Heavy-Duty Coil for Transportation
Hangzhou Purun Science & Technology Co., Ltd. has 22 years of experience. Our factory is in Xiaoshan, Hangzhou. It covers 2,500 square meters. We have 32 skilled workers. We have an independent R&D team. Key members previously worked for international power equipment companies. We hold ISO9001:2015 certification. Our products are traceable from raw materials to finished goods.
Designed for High Vibration Environments
Traction motor coils are used in electric locomotives, subway trains, and mining trucks. These coils need high mechanical strength and vibration resistance. We use special binding techniques and vacuum pressure impregnation. This helps the coils withstand frequent starts, stops, and strong vibrations. Every production step has a process card. Operators sign off on each step. We perform 100% inspection covering appearance, dimensions, and electrical properties. Only fully products go into storage.
Transparent Quality Control Process
Our quality control is fully transparent. Customers can review process inspection records during production. They can also hire third-party agencies for factory inspection. If quality issues arise, we respond with solutions within 24 hours. Because traction coils are critical components, we recommend on-site acceptance upon delivery. Assembly may cause damage, so we cannot offer long-term warranties. But we provide detailed installation instructions.
Delivery and Payment Information
Standard product lead time is 30 days. Custom products take about 45 days. Our monthly production capacity is 10 units. This meets small to medium order volumes. Repeat orders have shorter lead times because tooling is already made. We accept installment payments. Custom products require 50% deposit. The balance is due before pickup. Export packaging is designed for moisture and shock resistance. It meets international shipping standards.
Specifications
|
Parameter |
Specification |
|
Applications |
Locomotives, subways, mining vehicles |
|
Voltage Range |
750V / 1500V (customizable) |
|
Insulation Class |
Class H (180°C) |
|
Vibration Test |
Per IEC 61373 standard |
|
100% Inspection Items |
Dimensions, appearance, voltage test, insulation resistance |
|
Standard Lead Time |
30 days |
|
Custom Lead Time |
45 days |
|
Payment Terms |
50% deposit for custom orders; balance before pickup |
|
Inspection |
Customer self-inspection or third-party |
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