This mill is designed for manufacturing round pipes (Φ12mm-Φ38mm) with thickness of 0.5mm-2.0mm from cold-rolled and hot-rolled coil strips. The process includes forming unclosed tubular blanks, high-frequency welding, seam welding, cooling, sizing/shaping, and on-stream cutting.
| Pipe Diameter | 10-50mm |
| Welding Type | High frequency welding (H.F solid welder) |
| Material Compatibility | Carbon steel and galvanized steel |
| Max Product Speed | 120m/min |
| Inspection Method | 100% Eddy Current Test |
| Main Motor Power | 22-75KW |
| Roller Material | Cr12MoV |
| Cutting Length | 4-6m |
| Tube Thickness | 6-12.7mm |
| Dimensions | 20m × 2m × 1.5m |
Steel coil → Uncoiler → Shear and welder → Horizontal accumulator → Forming mill → HF solid welder → Sizing mill → Rough straightening → Cut-off machine → Run out table
| Parameter | Value |
|---|---|
| Forming Mill Stands | 7 |
| Sizing Mill Stands | 5 |
| Shaft Material | 40Cr |
| Round Pipe Diameter | 19-76mm |
| Round Pipe Thickness | 1.5-3.0mm |
| Square Pipe Size | 15×15-60×60mm |
| Square Pipe Thickness | 1.5-2.0mm |
| Model | Diameter Range | Pipe Thickness | Line Speed (m/min) |
|---|---|---|---|
| HG20 | 8-25.4mm | 0.3-1.2mm | 120 |
| HG32 | 10-32mm | 1.4-1.5mm | 120 |
| HG50 | 16-76mm | 0.7-2.5mm | 30-120 |
| HG76 | 25-76mm | 1-4mm | 30-100 |
| HG89 | 32-89mm | 1-4.5mm | 30-80 |
| HG114 | 45-114mm | 1.5-5.0mm | 30-60 |