Product parameters
| Round Tube | Min. Φ8mm, Max. Φ20mm |
| Round Tube Thickness | Min.0.3mm, Max. 1.2mm |
| Square Tube | Min.10X10mm, Max.15X15mm |
| Rectangle Tube | Min.8X10mm, Max.10X20mm |
| Sq & Rect. Tube Thickness | Min.0.3mm, Max.1.2mm |
| Pipe Length | 4.0-8.0m |
| Length Tolerance | ±2.0mm |
| Forming mothed | Round:Traditional forming technology Square and rectangleround to square |
| Welding mothed | Solid State H.F. welding |
| Production Speed | Max.150m/min |
| Feeding direction | Right or left side feeding |
Product process drawing
Product Description
The mill is intended for manufacturing of round pipe of Φ8mm-Φ20mm with thickness of 0.3mm–1.2mm, with square & rectangle pipe from 8x8mm to 15x15mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.
Our advantage
Uncoiler
Uncoiler is the first main equipment of HG20 high-frequency longitudinal welded pipe production line, used to support steel coils, realize continuous unwinding, and provide stable strip feeding for the whole line.
Forming section
The forming section is the core working unit of the HG20 high-frequency straight seam welded pipe production line.
It gradually rolls the flat steel strip into a round tube blank with an open seam, preparing for high-frequency welding
Welding section
The welding section is the key core unit of the HG20 high-frequency straight seam welded pipe production line.
It uses high-frequency induction heating to quickly heat and fuse the strip edges,forming a high-strength, compact straight seam weld under extrusion pressure