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ERW Round Tube Carbon Steel Galvanized Pipe Welded Making Machine

Basic Information
Place of Origin: China
Brand Name: Yuhua
Certification: CO,CE,FORM A, FORM E
Model Number: HF-76
Minimum Order Quantity: 1 set
Price: USD 180000/SET
Packaging Details: Plastic Film and Wooden Case
Delivery Time: 120 days
Payment Terms: T/T
Supply Ability: 5 set/month
Detail Information
Machine Name: High Frequency Pipe Welding Machine Material: Carbon Steel, Zinc Steel, Stainless Steel
Tube Pipe Shape: Round, Square, Rectangle Pipe Diameter: 20~76mm (For Round)
Pipe Thickness: 1.0~2.5mm (For Round) Production Speed: 30~120 M/min
High Frequency Power: 200KW Cutting Length: 6~8M
High Light:

round pipe welding machine


tube welding machine

Product Description

High Precision ERW Round Tube Carbon Steel Galvanized Pipe Welded Making Machine



Summary of Pipe Welding Machine


The accurately sized strips, precut from high quality hot-rolled or cold-rolled steel coil strips in slitting machine, are fed into the tube mill, gradually formed to a round profile with open seam along its length in the forming mill.

A high-frequency induction welding technique is adopted to seam edge heat and longitudinal seam weld, form a strong continuous seam joint.


The strip is continuously seam welded while round in shape. The welded pipe passes through and external bead scarfing and cooling, further sizing and shaping to round or square or rectangular section with specified tolerance in the sizing mill.

After that, the endless welded pipe will be on-stream cut to desired and measured lengths.

Finished tubes may be of round, square or rectangular shape.



Main Technical Performance


Raw material Carbon steel coil, galvanized steel coil, other hot or cold rolled steel coil.
Pipe size Width of raw material 50 - 200mm
Round pipe outside diameter Φ12.7 - Φ50.8mm
Round pipe thickness 0.6 - 2.5mm
Square and rectangular pipe size 2cm*2cm 4cm*4cm
Square and rectangular pipe thickness 0.5 - 2.0mm
High frequency induction welder power 200Kw
Production speed 30~120m/min


Process of High Frequency Pipe Welding Machine


{Steel strips} →→Auto Double-head un-coiler →→Strip-head Shearer & Auto TIG butt welder station →→Horizontal spiral accumulator group →→Forming M/C (Main driving unit + Flattening Entry unit + Breakdown section + Fin pass section + Sea m guide unit + High frequency induction welding system + Squeeze welding roller unit + Outside scarfing unit + Horizontal ironing stand) →→ Emulsion water Cooling section →→ Sizing M/C (Main driving unit + Sizing section + Speed testing unit + Turk straightener + Vertical pull-out stand) →→ NC flying saw under computer control →→ Run-out table


NO. Equipment Introduction and main technical parameters


Raw material uncoiler


It’s used to support the steel strip roll and feed raw material for the production line.
1) Structure mode Double working position
2) Material tray outer diameter Φ1600mm
3) Material tray inner diameter Φ350 - Φ550mm
4) Central height 1000mm
5) Weight bearing 3000Kg
(2) Vertical material accumulator It’s used to store and feed raw materials for forming machine so that the machine can work continuously.
1) Max storage capacity 200m
2) Power of driving motor 4.0Kw
3) Max material feeding speed 150m/min



Forming and sizing machine It’s the main equipment of the production line. Rollers can make steel strip form into pipes of variety shapes. It consists of forming part , welding part and sizing part.
1) Forming part Material feeding - Flattening - Feeding - 1 Horizontal roller - 1 Vertical roller - 2H - 2V - 3H - 3V - 4H - 4V - 5H - 5V - 6H - 6V - 7H - 7V
2) Welding part Seam direction guiding -Extruding - Welding - Weld burr removing - Polishing - Water cooling
3) Sizing part 1V - 1H - 2V - 2H - 3V - 3H - 4V - 4H - 5V - 5H - 6V - 6H- Speed measuring - Straightening

4) Driving


132Kw DC motors transmit power to gear boxes through reducer, then gear boxes transmit power to each horizontal roller through universal shafts.

5) Horizontal


Using gantry integral frame. Diameter of shaft is Φ55mm and the material is 40Cr.
6) Vertical frame Adjusted through lead screw. Diameter of shaft is Φ35mm and material is 40Cr.



Hot cutting saw



With the high precision STD control system and quick reaction of mechanical system, the cutting saw has reliable synchronization performance and high precision cutting length.
1) Error in length ±3mm
2) Power of cutting motor 15Kw
3) Power of driving motor 15Kw
(5) Automatic pipe unloading platform It is an unloading platform of pipes cut by computerized saw. After the pipes falling down, workers can quickly check the quality and package them for preparation of transportation.
(6) High frequency induction appliances Using the current skin effect and proximity effect of high frequency to make both edges of the material rapidly heated to soldering temperature and then weld them together. Using computer to monitor the process can provide the machine with reliable quality.



Foundation and advised Buyer’s necessary

  • Site area of machine (length X Width): 55m × 7m
  • Site area of cabinets (length X Width): 6m × 3m
  • Machine foundation base: See foundation drawing CAD
  • Overhead crane: 2 sets of ≥5 Ton overhead crane
  • Magnetic bar (impeder core): prepared by Buyer
  • Saw blade: Prepared by Buyer
  • Lubricating oil grease, cooling emulsion and etc will be prepared by Buyer
  • One set of Emulsion water cooling pool (Volume 30 m­3*1pools)for pipe-welding mill and plate exchanger of HF-welder, with two sets of pumps(AC4Kw,lift≥30m­ & flux≥30m­3/hour),water pressure meter,valves,and water pipes will be prepared by Buyer. Or use one set of glass fiber cooling tower for Emulsion water cooling pool and plate exchanger of HF-welder.
  • Adopting ground or attic frame and room of high-frequency welder for machine unit, stack basket for welded pipe, made by buyer.
  • The cables which from power station to pipe mill line, and cables & wires between machines and cabinets, all of them will be prepared by Buyer.
  • One set of ≥1m­3 /min air compressor and one set ≥0.50m­3 air tank, 0.7~1.0Mpa. Whole of the pneumatic supply system will be prepared by Buyer.
  • Lifts,tools,anchor bolts,expand bolts,embedded and fixing materials for installing machine will be prepared by Buyer.
  • Power supply:
    • High frequency welder power: GP-200Kw
    • Power of supply: 3P/4W/380V/50Hz
    • Total power of Line: 450Kw



Workshop to place the whole pipe production line (more than 35×5m²).

Space for high frequency appliances (more than 6×4m²).

(2) Foundation of the production line to be constructed according to drawing.
(3) Power supply: The main electric source to high frequency room and production line. Connecting wires from high frequency to the main machine.
(4) Gas supply: one air-compressor.
(5) Water supply: Water pool (25m³) and one water absorbing pumps.
(6) One set of welder for connecting the head and tail of the material coil.
(7) Several saw pieces of the computer cutting saw according to the specification.
(8) Induction loop (Φ8×1 copper tube) and magnet bar according to pipe specification.


Detailed Photos of Pipe Welding Machine


ERW Round Tube Carbon Steel Galvanized Pipe Welded Making Machine 0

Contact Details
Yvonne Ding