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TIG / Stick IGBT Welder Dual Voltage 140Amp DC TIG140 Welder


Product Description

The Lotos TIG140 is a compact inverter Lift Start welder that provides DC stick and DC TIG welding capability. It is a welding machine incorporating IGBT and features performance and high efficiency. The welder is ideal for welding tasks where portability and performance are required.

All ferrous metal, Copper and Stainless Steel material can be omni-bearing welded in all positions. With 120V/240V capabilities, the unit can be operated almost anywhere a power outlet is found, and can be used with small clean powered generators.


  • 140-amp DC TIG/Stick(MMA) Welder;
  • Automatic dual voltage / dual frequency (110/220-volt 50/60Hz);
  • Analog controlled IGBT inverter;
  • Suitable for welding Stainless Steel, Mild Steel, and other metal materials.


Package Includes:

  • TIG welding torch (9ft long); Stick welding electrode holder (9ft long);
  • TIG accessory kit TA01 (includes: 3 pieces shield cups, 3 collets and 1 collet body);
  • Pigtail adaptor plug Type 2 PT02 converts 220V to 110V;
  • Hand held shield with cleaning wire brush; and user Manual.



TIG140 User Manual










Output Power


Input Voltages

110/220V, 1-PH, 50-60Hz

Input Current

15A @110V, 30A @220V

Output Current

TIG: 10 – 80A 20.4-23.2 V (110V) DC

10 – 140A 20.4-25.6 V (220V) DC

Open Circuit Voltage

70 V

Duty cycle @ 40°C (104°F)

35% @ 80A (110V)

60% @ 65A (110V)

100% @ 50A (110V)

35%@ 140A (220V)

60% @ 100A (220V)

100% @ 85A (220V)


Dimensions with handle

13” (330mm) L

6” (152mm) W

10” (254mm) H

Weight w/ 5' (1.5 m) torch

24.8lbs (11.2kg)

Gas Supply

Clean, dry, oil-free argon

Protection Class


Input power cable length

6’ (1.8m)




Mild Steel


Welding Capacity:

1/4" (6mm)

Stainless Steel

Other Metals



1 Year Warranty Included

 * Material thickness are the results of Lotos laboratory testing. Production speeds are approximately 80% of maximum.

*For optimum weld quality, welding speeds may vary based on different welding applications.

Product Videos

Setting up my New Lotos Tig/Stick 140 welder 02:04

Just a little quick setup and use of the new Lotos Technology Tig 140 Tig/Stick welder. Had to get use to the scratch start again. Now to make a pedal/switch so I don't have to keep snapping out.

  • Setting up my ...
    Just a little quick setup and use of the new Lotos Technology ...

Warranty Information

IMPORTANT: Effective May 1st, 2014, Lotos Technology’s product warranty terms is revised as the following:

Lotos Technology warrants that all equipment sold by our company, unless otherwise specifically stated, will be free from defects in materials and workmanship for a period of 1 year from date of shipment. Such warranty shall not apply in any event to failure or defects in materials due to normal wear and tear, failure to perform recommended or customary maintenance procedures, exposure to detrimental elements, improper or extended storage, or corrosion, and shall not extend to any person or entity other than the customer.

Please visit Return and Repair for more information on product return process and our 30-Day Satisfaction Guaranteed.

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