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Quick Details

  • Condition: New
  • Place of Origin: Henan, China (Mainland)
  • Brand Name: KEHUI
  • Model Number: KHGC
  • Arc Current: 4-400A
  • Pulse Frequency: 50HZ/60HZ
  • Pilot Arc Current: 4-400A
  • Rated Duty Cycle: 60% or 100%
  • Motor Type: DC Motor
  • Dimensions: 300*400*460mm
  • Usage: apply to narrow thin tube weld
  • Voltage: 3 PH 220V/380V/415V/440V
  • Power(W): 14kw
  • Certification: ISO9001:2008, CE, CU-TR, CCC
  • Warranty: 12 Months
  • After-sales Service Provided: Engineers available to service machinery overseas
  • Welding thickness: 0.25~2.5mm
  • Phase: 3 Phase
  • Input voltage: 380V±10%
  • Welding method: DC TIG welder
  • Welding Frequency: 50/60Hz
  • Operation: LCD touch screen
  • Control: Industry PLC system
  • characristic: Auotmatic tig welding machine
  • Apply: Narrow diameter&thin wall thickness tubes welder
  • key words: OEM arc welder ,narrow thin wall thickness tube

Packaging & Delivery

Packaging Details 1. packed in wood case
2. as your per request
Delivery Time Shipped in 30 days after payment

PLC Control IGBT digital display  tube to tube welding machine tig welder ac/dc








Application Industry: Applicable for industries such as medicine and chemical, food, biological engineering, refrigeration equipment, electronic equipment, instruments and apparatuses.
Applicable Scope: Automatic TIG welding (without wire) of thin-walled tube for carbon steel, alloy steel, stainless steel and titanium alloy.



Parameter of weld head
Weld speed (rpm)0.6-100.6-100.3-50.1-2.50.1-2.50.1-2.5
Suitable Dia (mm)3-2010-3412-6316-8920-11451-180
Electrode Dia (mm)1.61.6/2.41.6/2.41.6/2.41.6/2.41.6/2.4
CoolingAir CoolingAir CoolingWater CoolingWater CoolingWater CoolingWater Cooling
Power Source250 A250 A300 A300 A300 A300 A



Parameter of power supply
brandSan Rex
Rated input voltage   AC 380   ± 10 %
Rated input capacity16.0 KVA
PhaseThree phase
Frequency50 Hz
Rated load sustained rate300 A   40 %
(each of 10 minutes)Under 300 A 100%
Rated welding voltageTIG welding 22 V/32 V
Rated voltage no-load57 V/62 V
Welding current adjust rangeDC 5~300 A
To adapt to the welding gunhave
Cooling typeWater cooling/ Air cooling
Welding current adjustment4-400 A
Rated input capacity13.9 kw
Rated power input13.2 kw
Weight of power supply19 KG




Parameter of Control system 
Control methodPLC
DisplayDigital display
Screen touchResistive screen
Built-in memory capacity100 groups of welding standard
Input InterfaceEnglish


Function: The power supply/control system supplies and controls the welding parameters according to the specific weld program created or recalled from memory..The specific weld program ( can store 100 groups)are setup by our engineer according to your welding situation.


You also can setup your weld specific program through resisitive touch screen. Our machine can tore 100 groups of weld parameter.The sreen pictures are display as belows:




Functions and Features
1. KHGC has many types of welding machine head, which can meet different requirements of consumers. Users can choose one or more welding head according to the tube diameter and the used space.
2. KHGC series is suitable for welding of tube to tube, tube to elbow, tube to flange, tube to value body and tube to unions
3. Because of its extremely small dimensions,the KHGC series is the perfect solution for application with tight access restrictions.
4. Fill the chamber with shield gas before welding can provide good protection and form the beautiful appearance and high quality of weld seam.
5. The duplex clamp inserts makes the workpiece orient correctly without the orient sport welding .
6. Through on-site testing,it proves that the welding machine head is more effective and reliable with Maxon motor and Maxon gears.
7. All welding parameters fully programmable.up to 100 programmes storage. All operational process is controlled by PCL system with its touch screen.
8. PLC control system, control is accurate, reliable and strong anti-jamming capability, with LCD touch screen, all English input, direct and convenient.
9.Adopt SanRex IGBT inverter control dc pulse power ID - 3001 TP, guarantee high welding efficiency and strong arc stability, Weld bead molding beautiful.
10.Mandatory water cooling system, equipped with stainless steel tank, not be limited by field water hydraulic water source etc conditions, cooling fully, reliable convenient;
11.KHGC equiped with the printer can print the welding parameters . Selecting the automatic mode, the parameters will be automatically printed when each welding is completed.









 Company introduction


Kehui technology was orgnaized in 1996, as leading company in the welding and heat treatment field. It concentrates on providing solution and recommendation to clients.Hence, we attempt to customize our produt relates to clients'requirements.

By the rich experience in such area,we may design adn produce various type of product, such tube-tube and tube-tube sheet,and other type automatic welding machine wihch successfully be used in perochemical,manufaturing and boiling industry .


Recnetly, with the almost 20 years' development, the company is transforming to one of the listed companies of China.We hope the new organization may benefits our clients by bring more advanced technologies and fresh ideas in the near future.





CE certification:





Key words


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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