76-203mm Diameter 1.5-8mm Thickness High Frequency Welded Pipe Mill
Diameter Max 208mm | Thickness Max 8mm
Product Specifications
| Attribute | Value |
| Product Name | High Frequency Welded Pipe Mill Diameter Max 208mm Thickness Max 8mm |
| Tensile Strength | σb≤500 Mpa |
| Thickness Range | 1.5-8mm |
| Max Production Speed | 20～60m/min |
| Fixed Cutting Length | 6-12m |
| Pipe Size Range | φ76-φ203mm |
| Warranty | One Year |
| Welding Type | High Frequency Welding |
Product Overview
The HG 165.2x9(7") high precision high frequency welded pipe production line is designed for structural pipe production. It produces round pipes from 76-203mm with thickness 1.5-8.0mm and square pipes from 60x60-160x160mm with thickness 1.5-8.0mm.
This production line incorporates innovative design elements from domestic and international equipment, featuring full PC or computer control with advanced technology for convenient operation and maintenance. It meets international standards from the early 1990s and represents domestic leading technology.
Production Process
- Uncoiler → Straight Head → Shear and Welder → Accumulator → Forming
- HF Welder → Bead Cutter → Cooling → Sizing → Turkey Head → Saw
- Run Out Table → Straightening Machine (optional) → End Facer → Packing → Storage
Key Equipment Specifications
1. Loading Car
- Coil Out Diameter: Φ1200-2000mm (buyer confirmation required)
- Strip Width: 240-640mm
- Max Strip Weight: 10 TON
- Speed: 5m/min
- Lift Type: Hydraulic
- Working Pressure: 10Mpa
2. One Mandrel Hydraulic Uncoiler
- Structure: One mandrel hydraulic uncoiler
- Coil Out Diameter: Φ1200-2000mm
- Coil Inner Diameter: Φ508mm
- Strip Width: 240-640mm
- Strip Thickness: 1.5-8.0mm
- Max Strip Weight: 10.0 TON
- Drive Motor: 4kw, 380V
- Mandrel Rotation Speed: Nmin=1r/min
3. Straight Head Machine
Used to lead steel strip into leveler smoothly. Composed of pressure arm and shovel head in gantry type configuration with up and down uncoil capability.
4. Pinch Leveling Machine
- Leveling Motor: 15KW
- Pinch Roll Diameter: Φ210x900mm (40Cr material)
- Leveling Roll Diameter: Φ160x900mm (40Cr material)
- Leveling Width: 240-640mm
- Pinch/Leveling Thickness: 1.5-8.0mm
- Speed: 0-11M/Min
5. Shear and Welder
- Steel Strip Thickness: 1.5-8.0mm
- Steel Strip Width: 240-640mm
- Steel Strip Strength: δs ≤345Mpa, δb ≤610Mpa
- Cutting Type: Hydraulic
- Compress Type: Hydraulic
- Welding Type: Motorized movement
- Hydraulic Working Pressure: 10Mpa
- Blade Material: H13
6. Horizontal Accumulator
- Diameter: 10000mm
- Steel Coil Thickness: 1.5-8.0mm
- Strip Width: 240-640mm
- Max Carry Speed: 100-180m/min
- Feeding Motor Power: DC 90kw
- Accumulator Body Motor Power: AC 15KW×16
- Storage Length: 500-1000M
7. Forming and Sizing Mill
- Conventional Type: W Bending
- Reducer Group Drive Type: Helical Gear (Carburizing)
- U-Joint quick change system with spare shafts
- Entry Side Guide & Pinch Roll system
- Rough Forming: 4 main stands, 4 side stands
- Refined Forming: 3 main stands, 3 side stands
- Driving Motor Power: 160Kw
8. Milling Saw
- Pipe Material: SRT355, SGT355 (STK490, SGH490, POSMAC)
- Round Pipe Range: 76-203mm
- Square Pipe Range: 75x75-150x150mm
- Max Line Speed: 60m/min
- Pipe Cutting Length: 4000～15000mm
- Cutting Precision: ±2mm
- Quantity of Burrs: Max 0.2mm
9. Run-out Table & Conveyor
- Total Length: Approx. 25 meters
- Roll Pitch: 600mm
- Drive: AC Motor (3EA) with chain and speed control by inverter
- Includes sorting system for good/bad pipes
- Inspection skid: 4rows × length 2M + Pocket 4rows × width 1.2M
- Bad pipes pocket: 6rows × width 1.5M
10. Straightening Machine (Optional)
- Pipe Correction: Maximum yield limit <355mpa
- Diameter Range: Φ76-Φ203mm
- Roll Distance: 650mm
- Throat Diameter: 250mm
- Length: 380mm
- Rotation Angle: 37.183-43.426 degrees
- Correction Speed: 20-60m/min
- Motor: 55kw×2 sets
11. Head Chamfering Machine (Optional)
Special equipment for milling and chamfering the end face of steel pipes, featuring mechanical and servo drive with electrical control for automatic operation. Double-station design allows processing two steel pipes simultaneously.
