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ERW720 high frequency longitudinal welded pipe production line / pipe making machine / tube mill is designed to produce welded pipes of 355mm-720mm in OD and 6.0mm-22.0mm in wall thickness, as well as corresponding square and rectangular pipe.
We can design and manufacture pipe making machine according to customers' requirements.
ERW720 high frequency longitudinal welded pipe production line / pipe making machine / tube mill is designed to produce welded pipes of 355mm-720mm in OD and 6.0mm-22.0mm in wall thickness, as well as corresponding square and rectangular pipe.
Products: architectural structure tubes, API pipes and other products.
√ China's largest straight seam welded pipe production line
√ Apply to high strength steel and big thickness
√ Raw material can be steel coil and single plate
√ ZTF forming process save roller up to 60%
√ With direct square forming technology, one set of roller can produce all pipe sizes
√ Electric control and automatic adjustment, high precision,high roller change speed
| Product&yield | Round Pipe | 355mm-720mm Thickness: 6.0mm-22.0mm |
| Square & rectangle tube | 300mm×300mm -600mm×600mm Thickness: 6.0mm-22.0mm | |
| Length | 6m-12m Length Tolerance: ±3mm | |
| Production Speed | 20 m/min | |
| Production capacity | 180,000ton/year | |
| Consumption | Mill installed capacity | 1400 kw |
| Line Area | 400m(length) ×40m (width) | |
| worker | 6-8 workers | |
| Raw Material | Carbon steel coil & steel plate Q235B(ASTM GR·D,σs 230) & High-strength steel | |
Scrolling up→ Uncoiling → Shear and Welding→ Spiral accumulator→ Forming → H.F. induction welding→ External burr removing→ Cooling → Sizing→ Flying saw → Run out table →Inspecting→ Packing→ Warehouse
| Round pipe | Cold roll forming process | Good roller design |
| ZTF forming process | Save roller up to 60% and realize electric control adjustment Read More | |
| Square & rectangular pipe | General round-to-square process | Stable forming process |
| Round to square with turkshead | Good pipe quality, reach same wall thickness with round pipe | |
| Process of directly forming into square shape | One set of roller can produce all pipe sizes & realize electric control and automatic adjustment Read More |
| Model | Round pipe mm | Square pipe mm | Thickness mm | Working spead m/min | |
| ERW20 | Ф8-Ф20 | 6x6-15x15 | 0.3-1.5 | 120 | Read More |
| ERW32 | Ф10-Ф32 | 10x10-25x25 | 0.5-2.0 | 120 | Read More |
| ERW50 | Ф20-Ф50 | 15x15-40x40 | 0.8-3.0 | 120 | Read More |
| ERW76 | Ф32-Ф76 | 25x25-60x60 | 1.2-4.0 | 120 | Read More |
| ERW89 | Ф42-Ф89 | 35x35-70x70 | 1.5-4.5 | 110 | Read More |
| ERW114 | Ф48-Ф114 | 40x40-90x90 | 1.5-4.5 | 65 | Read More |
| ERW140 | Ф60-Ф140 | 50x50-110x110 | 2.0-5.0 | 60 | Read More |
| ERW165 | Ф76-Ф165 | 60x60-130x130 | 2.0-6.0 | 50 | Read More |
| ERW219 | Ф89-Ф219 | 70x70-170x170 | 2.0-8.0 | 50 | Read More |
| ERW273 | Ф114-Ф273 | 90x90-210x210 | 3.0-10.0 | 45 | Read More |
| ERW325 | Ф140-Ф325 | 110x110-250x250 | 4.0-12.7 | 40 | Read More |
| ERW377 | Ф165-Ф377 | 130x130-280x280 | 4.0-14.0 | 35 | Read More |
| ERW406 | Ф219-Ф406 | 170x170-330x330 | 6.0-16.0 | 30 | Read More |
| ERW508 | Ф273-Ф508 | 210x210-400x400 | 6.0-18.0 | 25 | Read More |
| ERW660 | Ф325-Ф660 | 250x250-500x500 | 6.0-20.0 | 20 | Read More |
| ERW720 | Ф355-Ф720 | 300x300-600x600 | 6.0-22.0 | 20 | Read More |
