ERW Steel Pipe High Frequency Welded Pipe Mill

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.

• 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

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

• Coil outer diameter: Φ1200-2000mm
• Strip width: 230-600mm
• Max strip weight: 10 tons
• Speed: 5m/min
• Lift type: Hydraulic

• Expand type: Hydraulic expand
• Drive motor: 4kw, 380V
• Mandrel rotation speed: Nmin=1r/min
• Features tension adjustable type water cooling disk brake

• 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

• 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)

• 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

• 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

• 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