Hengtong Petroleum Machinery has successfully dispatched a major shipment of Cold Drawn Tubing for high-efficiency electric motors
Recently, Hengtong Petroleum Machinery has successfully dispatched a major shipment of precision cold-drawn stator tubesfor high-efficiency electric motors. This delivery underscores our commitment to serving global electrification and industrial automation sectors.
Cold drawn steel pipe with quenched and tempered for downhole motor stator tube
**Product Specifications**
- **Material Grades**: ASME SA-519 / EN 10305-4 E355
- **Dimensions**: Φ50mm–Φ300mm (±0.05mm tolerance)
- **Surface Finish**: RA ≤ 0.8μm | SA 2.5 blast-cleaned
- **Certifications**: ISO 9001 | PED 2014/68/EU
- **Application**: Stator housings for motors/generators (EV, wind turbines, industrial drives)
4140 Stator Tubes Downhole Motor Cold Finished Steel Pipe
Our stator tubes solve concentricity challenges in high-RPM motors. The cold-drawn process enhances grain structure uniformity, achieving 15% higher magnetic flux efficiency versus hot-finished alternatives.
Manufacturing Excellence
Produced at our 30,000㎡ Taihu Lake industrial base using:
✅ **500T Heavy-Duty Cold Drawing Presses**
✅ **CNC-Controlled Roller Straightening Systems**
✅ **In-Line UT Testing & Spectrochemical Verification**
