Automatic Welding Machine for Ledger

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Factory    Factory:Middle Mingjia Road, Qihe Economy
Development Zone, Shandong, China

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Automatic Welding Machine for Ledger

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Automatic Welding Machine for Ledger
I. Application           
  1. Weld circular seams on ledger. Welding process will be continual and steady. Machine will stop when the welding is finished.
  2. MIG welding type, weld double-seam at the same time
II. Technique Parameters   

Applicable pipe diameter


Applicable pipe length


Rotation speed


Motor power


Air pressure


Control system

Japan Omron PLC and touch screen

Output voltage


Output rated current

60-350A, at 60%

Welding power source

350A / 400A

Machine working voltage

380v 220V 420V

III. Machine Structure      
  1. Welding torch is fixed, and pipe will rotate. Welding torch can be manually adjusted up and down, side to side and angled turn. Machine is equipped with 2pcs welding torch. 
  2. Both pipe ends are fixed by rotary chuck. Rotation speed is controlled by Japan Omron AC frequency transformer (0.75kw). They will be synchronous rotation. They will make sure the synchronous rotation of power head mechanism and tail-stock. 
  3. Japan OMRON PLC  and touch screen are used to control the whole machine. 
  4. Push-type wire feeder works stably. Machine is with high welding voltage and slow wire feeding performance, which guarantees reliable arc igniting. Machine is also with low welding voltage and low welding current for filling crater.  
  5. Pipe is supported by bracket. It is flexible and convenient to load and unload pipe in the process of welding. The supporter will move along round rails. Space between supporters can be adjusted according to pipe length. 
  6. In order to weld different length pipe, the tailstock is moving alone round rails.
  7. Equipped with lock. It will guarantee that ledger will placed in the right position and not move.



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