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Mig Wire Feeder Welder MIG140 Gas Shielded 140A Welding

$399.00 $249.00
(You save $150.00)

Product Description

Lotos MIG140 is now available with 2T/4T switch and the 2 digital displays help customers adjust wire feeder speed and welding voltage more precisely. The new designed ground cable quick connector makes easy switch between +/-. The new Lotos MIG140 features a 140 Amp MIG welder that can weld at industrial quality and performance at a very affordable price.

The most versatile and perfect welder for do-it-yourself home users as well as professional users. The Lotos MIG140 is also spool gun capable for welding aluminum. It can be easily connected to your existing 110-Volt wall outlet and quickly setup within 10 minutes or less. It handles industrial standard 4 in. or 8 in. wire spools and incorporates a thermal overload protection system to protect your welder. Spool gun can be purchased separately and is not included.

★ BUY WITH CONFIDENCE: We offer 30 days refund and a 3-YEARS Limited Warranty: include 1 Year NEW Replacement Warranty. ★ US BASED CUSTOMER CARE & SUPPORT TEAM: please feel free to contact us by phone or email, we always stand Back on Our Products. Please submit the registration form on our website.


2T/4T Switch


Under 2T model, when you press the trigger on the torch, then the machine begin welding. Once you release the trigger, the machine stops welding.


Under 4T model, it is designed for long time welding. When you want to weld, just press the trigger on the torch one time then release it, the machine will continue welding until you press and release the trigger on the torch again.




  • [2016 Upgrade Version]:New Aluminum Wire Feeder-much more stable and better user experience. New Designed Argon.
  • 140-amp MIG Welder with mask, etc.
  • Operates on 110V, Single phase 60Hz
  • Suitable for welding stainless steel, mild steel, aluminum (with a spool gun), and other metal materials

Package Includes:

  • 140 Amp MIG welder with included MIG torch MT104(10ft long);
  • Ground gable and clamp (9ft long);Argon regulator AR03; Hand shield with cleaning wire brush.
  • Includes: a MIG welding solid wire (0.8mm, 0.9kg) spool.
  • Includes MIG accessories: One interior tip for torch MT104 (size 0.8-0.030). One interior tip for spool gun MSG094 (size 0.9-0.035). One wrench and one wire feeder accessory part.



MIG140 User Manual


Output Power


Input Voltages

110-115 V, 1-PH, 60 Hz

Input Current

20A @115V

Duty cycle @ 40°C (104°F)

20% @90A (18 V)

Dimensions with handle

16” (408mm) L

9.6” (244mm) W

14.5” (367mm) H

Weight w/ 8'11’’ (2.7 m) torch

54lbs (24.5kg)

Gas Supply

Steel: clean, dry, oil-free 75% argon and 25% CO 2

Aluminum: clean, dry, oil-free argon

Recommended gas inlet flow rate / pressure

12 – 14L/min

Input power cable length

6’ 3 (1.9m)



Mild Steel

24 Gauge – 1/4"

Stainless Steel

24 Gauge – 1/4"

Aluminum (with a Spool Gun)

1/8” Plate or Thicker



30 days refund and a 3-YEARS Limited Warranty:

include 1 Year NEW Replacement Warranty
(Contiguous US only)

*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.

* For any Limited Warranty claim, a valid Proof of Purchase from our Authorized Dealers and a Valid US Shipping Address is required. Warranty valid in the US only and for orders from our authorized dealers. We do not have any authorized deals outside the US. We cannot cover warranty outside the US(e.g. Canada, Mexico)


Product Videos

LOTOS MIG140 140 Amp MIG Welder Installation Guide and Demonstration 05:31

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