ERW PIPE PRODUCTION LINE
Our ERW (Electric Resistance Welding) pipe welding line is a fully automated production line for producing high-precision straight seam welded pipes. It processes cut steel strips into round and square/rectangular tubes using advanced roll forming and high frequency welding technology. Our company's fully automatic FFX high-frequency straight-seam pipe production line and multi-functional 250F to 500F square and rectangular pipe production line are at the forefront of the industry.
Video of equipment operation
Model range
| No. | Model | Pipe diameter (mm) | Forming speed (m/min) | Thickness (mm) | Roll weight (t) | Installed power (kW) | Plot area (m²) |
|---|---|---|---|---|---|---|---|
| 1 | ERW32 | Φ10-Φ32 | 100-150 | 0.5-3.0 | 2 | ～400 | 3.5x60 |
| 2 | ERW50 | Φ20-Φ50 | 90-140 | 1.0-3.0 | 2.5 | ～450 | 4x70 |
| 3 | ERW76 | Φ42-Φ76 | 80-120 | 1.0-3.75 | 3 | ～600 | 4.5x80 |
| 4 | ERW89 | Φ48-Φ89 | 70-110 | 1.5-4.0 | 3.5 | ～800 | 5x85 |
| 5 | ERW114 | Φ50-Φ114 | 60-100 | 3-5 | 5 | ～1100 | 8x100 |
| 6 | ERW165 | Φ60-Φ165 | 50-80 | 3-6 | 10 | ～1600 | 10x120 |
| 7 | ERW219 | Φ114-Φ219 | 40-60 | 4-8 | 15 | ～1800 | 15x150 |
| 8 | ERW273 | Φ165-Φ273 | 10-30 | 4-12.7 | 20 | ～3000 | 18x200 |
| 9 | ERW325 | Φ165-Φ325 | 8-25 | 4-14 | 25 | ～3500 | 20x220 |
| 10 | ERW426 | Φ219-Φ426 | 8-20 | 4-16 | 30 | ～4000 | 20x240 |
| 11 | ERW508 | Φ219-Φ508 | 8-20 | 4-20 | 30 | ～4500 | 21x260 |
| 12 | ERW610 | Φ219-Φ610 | 8-20 | 4-22 | 30 | ～5000 | 24x280 |
| 13 | ERW630 | Φ273-Φ630 | 6-20 | 6-25.4 | 30 | ～5500 | 24x300 |
| 14 | ERW660 | Φ273-Φ660 | 6-20 | 6-25.4 | 30 | ～6000 | 24x300 |
Technological process
Key Benefits
- HIGH PRODUCTION EFFICIENCY:Forming speed varies from 6-150 m/min, while the roll weighs up to 30 tons, which allows minimizing roll replacement time.
- Wide range of products:Covers pipe diameters from φ10mm to φ660mm and thickness from 0.5mm to 25.4mm, supporting both round and square/rectangular pipes.
- Excellent welding quality:High frequency welding ensures a smooth and strong weld, while intermediate annealing and UT testing ensure structural integrity.
- Full automation:The integrated control system ensures automatic operation from coil loading to finished pipe storage, reducing labor costs.
- Stable and durable equipment:The robust frame design and high-quality rolling parts ensure long service life and low maintenance requirements.
Line layout
Frequently Asked Questions
What are the applications of the products?
Our ERW pipes are widely used in many industries, including construction, energy and utilities, transportation and infrastructure, etc.
How is the quality of the weld seam checked?
We use two key testing methods: · Hydrostatic Testing: Applies internal pressure to check for leaks or distortion · UT Testing: Ultrasonic testing detects internal defects such as cracks, inclusions or lack of fusion in the weld.
How long does it take to switch between different pipe sizes?
Time varies by model, usually 2-4 hours for standard size adjustment. Our quick change roll design and modular structure help minimize the time required.
What is ERW pipe welding line?
ERW Pipe Mill means a pipe welding line for producing electric resistance welded pipes. This is a special production line that forms steel strips or coils into round pipes and welds them with high frequency electric welding. It is primarily used to produce high quality straight seam steel pipes for industrial, construction, automotive and power generation applications.