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Quick Details

  • Condition: New
  • Place of Origin: Henan, China (Mainland)
  • Brand Name: KeHui
  • Model Number: KHB12-80
  • Arc Current: 4~400A
  • Pulse Frequency: 50/60HZ
  • Pilot Arc Current: 4A
  • Rated Duty Cycle: 60%
  • Motor Type: Stepper Motor
  • Dimensions: 12mm-89mm
  • Usage: TIG welding machine for Boiler, pressure vessel, heat exchanger etc.
  • Voltage: 380V±10%
  • Power(W): 13.2kw
  • Certification: ISO9001, SGS, CQC
  • Warranty: One year
  • After-sales Service Provided: Engineers available to service machinery overseas
  • Cooling method: Water cooling
  • tube diameter: 12mm - 89mm
  • operate: LCD touch screen
  • N.W: 128KG
  • storage welding databases: 100 group welding parameters
  • inverter welder: IGBT inverter
  • Power: Panasonic power supply
  • Welding speed: 50-150mm/min 0.5-5r/min
  • Weldable wall thickness: 0.8-6.5mm
  • Welding method: Automation TIG orbital welding machine

Packaging & Delivery

Packaging Details Inner cartons wrapped with plastic wrap, the outer layer wooden box.

KHB dc inverter pulse TIG Automatic arc welding machine for boiler, heat exchanger


Product Description




Automatic welding machine Technical Parameters


Mains Voltage (3-Phases 50/60Hz)


Rated Input Power


Rated input capacity


Voltage allow fluctuating range


Welding current adjust range



50/60HZ, 3 phase

Rated duty cycle

400A   60%

250A  100%

Rated welding voltage

TIG welding, 22.6V

Rated voltage no-load


Weldable tube diameter


Weldable wall thickness


Tube biggest stretch out length


Tube biggest indentation length


Current up time


Current fall time


Pulse frequency


Duty cycle regulating range

10% - 50%

Argon gas flow


Preflow Time


Lag send gas time


Wire adjustable Angle

0.1 – 1.5 m/min

Wire filling diameter

0.8/ 1.0mm

Welding head rotate speed

0.5-5 r/min

Built-in memory capacity

100 groups welding parameter

Welding speed


Cooling water pressure

1.2 kg.f/m

Tungsten pole adjustable Angle


Weld head Weight 

6 kg




Applicable industries

Petrochemical, boiler, pressure vessel, heat exchanger, shipbuilding, atomic energy, refrigeration, pharmaceutical, food machinery, etc

Applicable products

Pipe diameter 12mm - 80mm carbon steel, alloy steel, stainless steel, aluminum, aluminum alloy, copper and copper alloy, titanium alloy, etc



1. 21 years’ experience focus on welding industry

2. In 2014, the company is authorized to distribute share and stock 

3. Auto welding, save cost

4. Fusion welding, fillet welding

5. Easy to weld various kinds of tube to tube plate welding

6. Welding effect looks smooth and nice

7. TIG welding, argon gas protection

8. With wire feeding, small size and light welding head, easy to operate.

9. Enhanced water cooling system, high duty cycle for long time using

10. Industrial PLC control system with LCD touch screen,  has better adaptability with strong anti-interference capacity, easy to set welding parameters, and can be stored up to 100 group of welding standard parameters.

11. Adopting Panasonic IGBT inverter DC pulse power source, welding arc is stability of high efficiency and strong.

12. Adopting water cooling system with 16 liter of stainless steel water box, cooling welding torch, so that the machine keep working up to 24 hours.

13. The cars type of integration design, move easily.



Specification of Welding Head


Suitable Tube Diameter


Suitable Tube Thickness


Welding Speed


Feed Wire Speed


Tube Max stretch out Length


Tube Min indented Length


Wire Adjustable Angle


Tungsten Pole Adjustable Angle


Feed Wire Diameter








Company Information






Our Services

warranty: One Year

After-sale service: 

1. Training for less than two weeks in our factory.

2. Training CD video

3. Video call.

4. Our engineers available to service machinery oversea.


1. automatic orbital welding machine

2. automatic TIG welding machine

3. automatic tube to tube welding machine

4. automatic tube to tube sheet welding machine

5. automatic argon arc welding machine

6. automatic inverter tig welding machine

7. closed chamber head orbital welding machine

8. open head orbital welding machine

9. automatic electric arc welding machine

10. tube welding machine

11.circular seam automatic welding machine = girth seam automatic welding machine = circumferential seam automatic welding machine

12. automatic submerged arc welding machine

13. automatic SAW welding machine


Attention:welding machine = welder = welding equipment = soldering machine;tube = pipe;sheet = plate;


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China (Mainland) | Manufacturer, Trading Company
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