5inch 127mm ERW Tube Mill

This production line is specially designed for the efficient manufacturing of medium-to-large diameter welded steel pipes. It is widely used in structural tubing, fluid transportation, low-pressure pipelines, auto parts, machinery, and construction industries. With advanced automation and intelligent control systems, this production line offers high-speed, high-precision, and stable operation, making it an ideal solution for modern steel tube manufacturers.

Pipe Diameter: 38mm – 127mm|Wall Thickness: 1.5mm – 5.0mm







Product Details

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Product Details

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Product Description
 

1. Equipment Composition

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No.Equipment NameFunction Description
1Hydraulic Coil CarCoil loading and centering
2Hydraulic UncoilerDecoiling with auto tensioning
3Shear & Butt WelderCoil joint welding to reduce downtime
4Accumulator/Looping SystemBuffer storage for continuous production
5Forming Mill (Pre-forming + Fin forming)Gradual bending of steel strip into round tube
6High-Frequency WelderSolid-state HF welding for seam joining
7Inner/Outer Burr RemoverDeburring of weld seam for better surface
8Water Cooling SystemQuick cooling to stabilize dimensions
9Sizing & StraighteningDiameter control and roundness adjustment
10Flying SawAutomatic cutting to set lengths
11Run-out TablePipe delivery and collection
 
  • Single head uncoiler with peeler and hold down roll
  • steel strip flattener machine
  • horizontal accumulator
  • Conveyor and run out table
  • zinc coating machine
  • cold flying cutoff pipe

2. Technical Parameters

  • ItemSpecification
    MaterialCarbon steel, galvanized steel
    Strip Width Range120mm – 410mm
    Pipe Diameter RangeΦ38mm – Φ127mm
    Wall Thickness1.5mm – 5.0mm
    Forming TypeConventional / FFX Forming (optional)
    Welding TypeHigh-Frequency Induction (200–450kHz)
    Max Production SpeedUp to 80m/min
    Cutting MethodCold saw / Hot saw / Milling cutter
    Length Tolerance±1.0mm
    Control SystemSiemens PLC + HMI Touchscreen
  •  
  • 3. Equipment Advantages
  • ✅ Stable Forming – Precision roll design with optional quick-change system
    ✅ High-Efficiency Welding – Solid-state HF welding ensures strong and smooth seams
    ✅ Accurate Cutting – Servo flying saw guarantees clean cuts and length accuracy
    ✅ Smart Control – Centralized control panel with remote diagnostics
    ✅ Energy Efficient – Low noise, low maintenance, optimized power consumption.


4. Application Fields
  •  

  • Oil and gas pipelines

  • Steel structure tubes

  • Agricultural irrigation and drainage

  • Municipal low-pressure pipe networks

  • Conduit and protective tubing

  • Machinery and engineering structural tubing

  •  

5. Operation Tips

  • Ensure strip is clean and oil-free before forming

  • Weld edges should be well aligned to avoid weak welds

  • Regularly clean and inspect deburring tools

  • Lubricate and align the forming and sizing rolls

  • Replace flying saw blades timely for optimal performance

  •  
The Technical Flow of the Production Line

 

Uncoiling → Shearing & Welding → Looping Accumulator → Forming → HF Welding → Deburring → Cooling → Sizing & Straightening → Cutting → Run-out Table

Read More About tube mill machine

 

6. Packaging and Transportation:

  • Main equipment is packed in steel-frame wooden crates with anti-rust treatment

  • Heavy components are fixed with brackets to prevent shifting during shipping

  • Customized reinforcement plans ensure safe delivery

  • Installation drawings and full documentation included

  • On-site installation guidance available upon request

Looking for a complete understanding of ERW TUBE MILL technology? Read our Ultimate Guide to ERW TUBE MILL.

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4inch 114 Tube Rolling Mill FAQS

How to change pipe sizes?

With FFX forming system, only the sizing rolls need to be changed, greatly reducing setup time.

What if the cutting length is inaccurate?

Check the servo system calibration and blade condition.

Weld strength seems insufficient

Adjust welding power, impedance position, and check magnetic rod condition.

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