Precision Engineering for OE Spinning
JSM designs and manufactures rotor spinning components that match and often exceed OEM performance — at a more competitive price point. Trusted by spinning mills in 20+ countries.
From workshop to global partner.
Founded in 1996 in Baoding, Hebei — one of China’s historic textile manufacturing hubs — JSM began with a single conviction: that independent manufacturers could produce rotor spinning components that rival, even outperform, OEM parts.
Three decades later, that conviction is proven. With an annual output of over 2 million precision components, JSM now serves spinning mills across Asia, the Middle East, Africa, and Latin America.

What sets JSM apart
Every component is engineered to outperform — from material science to final inspection.
Diamond Coating Technology
Self-developed DN coating process delivering HV 8000–10000 surface hardness. Friction coefficient as low as 0.05–0.1, dramatically reducing cotton deposits and wear.
Full In-House Production
From raw material to finished component — CNC machining, dynamic balancing, and coating all controlled under one roof. Tolerance held within 0.005mm.
Engineering Partnership
Not just a parts supplier — our team helps diagnose spinning issues. We recommend the right rotor specs, coating type, and process parameters for your specific setup.
Inside our factory.
- Full-process CNC machining line
- High-precision machining centers
- Dynamic balance testing laboratory
- Diamond coating workshop (HV 8000–10000)
- ISO-certified quality management system
- Annual capacity: 2 million+ components

Trusted worldwide.
Your machines. Our components. Seamless compatibility.
R35 / R36 / R37
Not just a components supplier.
A technical partner committed to your OE spinning performance.
Technical Support
On-site analysis and tailored solutions.
Fast Delivery
Full in-house production, controlled lead time.
Custom Engineering
Bespoke coating and tooth profile configurations.
Get in touch
Send us your inquiry. Our engineering team responds within 24 hours.