JX Roll Forming provides HFW Welded Pipe & Tube Mill Solutions. The overview below covers profiles, specifications and selection logic.
A high frequency welding pipe making machine turns steel coil into tube by roll forming the strip and welding the seam with a high frequency induction coil. This line runs 2.0–5.0 mm galvanized, PPGI or carbon steel at 0–80 m/min, with 7 forming stations plus 6 sizing stations, driven by two 200 kW main motors through gearboxes.
The mill is built as one continuous line: coil handling, forming, welding and sizing, then cutting. Every section is selected against the tube schedule you intend to run.
| Line section | Specification |
|---|---|
| Coil handling | Hydraulic decoiler |
| Forming | 7 stations, Cr12MoV rolls, cast frame structure |
| Sizing | 6 stations |
| Main drive | 2 × 200 kW, gearbox drive |
| Control | Siemens PLC, Yaskawa inverter |
| Power supply | 380 V, 50 Hz, 3 phase |
Tube diameter and wall thickness are fixed by the roll set and the sizing section ordered with the mill, not by the mill frame. That is why the size range is agreed against your tube schedule at quotation stage rather than taken from a fixed catalogue range. Send the outer diameter, wall thickness and section shape — round, square or rectangular — and the roll set is specified around it.
Galvanized coil, PPGI and carbon steel, 2.0–5.0 mm thick, yield strength 250–550 MPa, tensile strength G350–G550. Rollers are Cr12MoV in a cast frame structure, which is what holds the roll gap on 5.0 mm strip at the top of the thickness range.
60 days after contract confirmation for the configuration listed here. More than 55 lines have been built and shipped to customers in China and overseas.
Q: What is the maximum line speed?
A: 0–80 m/min nominal forming speed. Real output depends on the tube size and the cut length, since each cut stops the line.
Q: What coil thickness can the mill handle?
A: 2.0–5.0 mm galvanized, PPGI or carbon steel with yield strength 250–550 MPa.
Q: How many forming and sizing stations does it have?
A: 7 forming stations and 6 sizing stations.
Q: What is the delivery time?
A: 60 days after contract confirmation.
High frequency welding pipe line for solar mounting, with 12-ton hydraulic decoiler and fully automatic PLC control. 30+ years factory, OEM & custom available.
Tell us your profile, material, and production target — our engineering team will prepare a customized solution and quotation.
