High Frequency Welded Pipe Mill HG 165.2x9 7" ERW Steel Pipe Mill Construction Rolling Machine
Product Specifications
| Attribute | Value |
| Coil Thickness | 2-9mm |
| Coil Width | 160~400mm |
| Inner Diameter | φ508~φ610mm |
| Outer Diameter | φ1500~φ2000mm |
| Speed | Max 60m/min |
| Warranty | One year |
| Material | Low carbon HRC |
Product Overview
The HG 165.2x9(7") high precision high frequency welded pipe production line is designed for manufacturing structural pipes with the following capabilities:
- Round pipe diameter: 76.3-165.2mm with thickness 2.0-9.0mm
- Square pipe size: 75x75-150x150mm with thickness 2.0-9.0mm
- Rectangular pipe size: 100x50-200x100mm with thickness 2.0-9.0mm
This production line incorporates advanced technology with PC/computer control, offering convenient operation and maintenance while achieving international standards.
Raw Material Specifications
- Material: Hot rolled or cold rolled steel strip (SRT355, SGT355, STK490, SGH490, POSMAC)
- Thickness: 2.0-9.0mm
- Width: 230-600mm
- Coil inner diameter: Φ508mm
- Coil outer diameter: Φ1200-Φ2000mm (final confirmation by buyer)
- Max coil weight: 10 tons
- Mill speed: Max 60m/min
- Strip edge condition: Slitter
- Line direction: Right to Left
Production Process
The complete manufacturing process includes:
- 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 Components
1. Loading Car
- Coil outer diameter: Φ1200-2000mm
- Strip width: 230-600mm
- Max strip weight: 10 tons
- Speed: 5m/min
- Lift type: Hydraulic
2. One Mandrel Hydraulic Uncoiler
- Expand type: Hydraulic expand
- Drive motor: 4kw, 380V
- Mandrel rotation speed: Nmin=1r/min
- Features tension adjustable type water cooling disk brake
3. Pinch Leveling Machine
- Leveling motor: 15KW
- Pinch roll diameter: Φ210x900mm (material: 40Cr)
- Leveling roll diameter: Φ160x900mm (material: 40Cr)
- Leveling width: 230-600mm
- Pinch/Leveling speed: 0-11M/Min
4. Forming and Sizing Mill
- Conventional W Bending type with helical gear reducer
- U-Joint quick change system for roll change
- Driving motor power: 160Kw
- 4-Roll type squeeze roll stands with AC motor adjustment
- Outside bead cutter with 2 heads (hydraulic adjustment)
5. Milling Saw
- Max line speed: 60m/min
- Pipe cutting length: 4000-15000mm
- Cutting precision: ±2mm
- Quantity of burrs: Max 0.2mm
- Servo motor driven with 37kw main motor
- Features 3 groups of hydraulic clamps with cone-shaped entrance
6. Run-out Table and Conveyor
- Total length: ~25 meters with 600mm roll pitch
- AC motor driven with speed control by inverter
- Automatic sorting of good and defective pipes
- Air blowing system for outer side cleaning
7. Straightening Machine
- Pipe diameter: Φ76.3-Φ165.2mm
- Correction speed: 20-60m/min
- Motor power: 55kw×2 sets
- Upper roller lifting range: 250mm
- Features worm gear box adjustment for precise control
Product Images








Q1: Are you manufacturer or trading company?
A1: we are manufactuer , more than 20 years experience.
Q2: What is the max size of pipe you have even produce?
A2: Max φ630mm
Q3:Can I visit your customer machine line?
A3: Yes, but I need to get agreement from my customer firslty.
Q4: what is your machine advantages?
A4:Contain Full automatic, Direct forming square, Share rollers. Fast change system
Q5:How I can get the quotation?
A5:Please send your requires of pipe size , thickness to us.