ERW140 high frequency longitudinal welded pipe production line / pipe making machine / tube mill is designed to produce welded pipes of 60mm-140mm in OD and 2.0mm-5.0mm in wall thickness, as well as corresponding square and rectangular pipe.
Products: architectural structure tubes, low-pressure liquid tubes, coal transmission belt tubes, drive shaft tubes, guardrail tubes, tower footing tubes, automobile beam steel tube and other products.


Advantage:
When producing round pipe, it can utilize ZTF forming technique
When producing square & rectangular tube, it can utilize directly square-square (DSS) technique

| Product&yield | Round Pipe | 60mm-140mm Thickness:2.0mm-5.0mm |
| Square & rectangle tube | 50mm×50mm -110mm×110mm Thickness:2.0mm-4.0mm | |
| Length | 6m-12m Length Tolerance: ±3mm | |
| Production Speed | 20-60 m/min | |
| Production capacity | 30,000ton/year | |
| Consumption | Mill installed capacity | 180 kw |
| Line Area | 80m(length) ×6.5m (width) | |
| worker | 6-8 workers | |
| Raw Material
| Carbon Steel coil | Carbon steel coil Q235B(ASTM GR·D,σs 230) |
| Width | 190mm-440mm Thickness: 2.0mm-5.0mm | |
| Coil ID | 520-680mm | |
| Coil OD | Max 1700mm | |
| Coil Weight | 5.0t |
Technical flow
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
ZTF forming process:Save alt least 60% roller cost with electric control adjustment
We can also design square tube machine depends on customer’s requirement.