Advanced Steel Tube Cold Rolling Mill Solutions
KWM Machinery’s Steel Tube Cold Rolling Mill delivers unmatched precision for manufacturing cold-rolled seamless tubes with wall thickness tolerances down to ±0.05mm. Engineered for aerospace-grade tubing, hydraulic cylinders, and bearing sleeves, our mills produce tubes compliant with DIN 2391, ASTM A519, and EN 10305-4 standards.
1. Features of cold rolling pilger mill
The cold rolling mill is the main forming tool for the cold processing of steel tubes. The outstanding advantages of cold rolling are strong wall reduction force, 75% ~ 85% wall reduction per pass and 65% diameter reduction. At the same time, the performance, dimension accuracy and surface accuracy of the supplied materials can be significantly improved.
2.Cold rolling process
Raw material — Acid cleaning — Cold rolling — Heat treatment — Finishing — Checking — Storing (aciding cleaning, cold rolling and heat treatment can repeated as need)
3.Main parameter of cold rolling mill
| No. | Model name | LG20 | LG30 | LG60 | LG100 | LG120 | LG150 | LG220 |
| 1 | OD of blank pipe(mm) | 20-42 | 22-51 | 42-83 | 50-127 | 76-140 | 102-185 | 160-273 |
| 2 | WT of blank pipe(mm) | 1.5-5 | ≤6 | ≤7 | ≤10 | 6-20 | 6-25 | 10-40 |
| 3 | Length of blank pipe(m) | 2-5 | ≤6.5 | ≤6.5 | ≤6.5 | ≤8 | ≤8 | ≤8 |
| 4 | OD of pipe finished(mm) | 10-25 | 15-32 | 30-60 | 40-100 | 60-120 | 80-160 | 150-220 |
| 5 | WT of pipe finished(mm) | 0.4-4 | 0.4-5 | 1-6 | 1-8 | 2-15 | 2-15 | 4-28 |
| 6 | Speed of frame(time/min) | 40-110 | 60-100 | 60-80 | 50-70 | 50-70 | 40-60 | 30-55 |
| 7 | Dia. of roller(mm) | 220 | 250 | 350 | 400 | 490 | 640 | 790 |
| 8 | Power of main motor(kw) | 22 | 55 | 132 | 160 | 250 | 400 | 800 |
We can also customize products according to customers’ needs.
5.The main components of cold pilgering mill
Main driving device
Main bed body
Mother tube pushing device
Feeding gear box assy.
Rotary gear box assy.
Charging roller way (supplied by user)
Discharging roller way (supplied by user)
Lubrication box assy.
Electrical control system
6.Steel Tube Cold Rolling Mill Technical Advantages
- Multi-Stand Tandem Rolling: Achieve 0.1mm precision in ovality
- Material Versatility:
∙ Carbon/alloy steels | Stainless steel (304/316L) | Titanium alloys - Quality Assurance:
∙ In-line eddy current testing (ECT) | Hardness mapping (HRB/HRC)
cold pilgering mill
7. Steel Tube Cold Rolling Mill Applications
- Automotive: Fuel injection pipes (ISO 10799)
- Medical: Implant-grade titanium tubes (ASTM F136)
- Industrial Machinery: Hydraulic cylinder barrels (ISO 6020/2)
8. Why Choose KWM Machinery?
- CE & ISO 14001 Certified cold rolling systems
- 15+ years expertise in cold pilger mill technology
- Custom solutions for thin-wall precision tubes
- Global spare parts network (72hr emergency dispatch)
9. FAQ
Q: What’s the minimum batch size for custom tubing?
A: Prototype batches from 50m, full production scalable to 10,000m/month.
Q: Can you retrofit older cold rolling mills?
A: Yes – we provide control system upgrades and roll profile optimization.
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