The GZ GUOZHI MIG-140 is a powerful, compact 3-in-1 welding machine designed for home users, hobbyists, and professionals. It supports gasless MIG, stick (MMA), and Lift TIG modes, offering flexibility across a variety of materials including steel and stainless steel. With IGBT inverter technology and synergic control, it delivers smooth arc performance and efficient operation from 20A to 140A. Compatible with 0.030" & 0.035" flux-cored wire and equipped with advanced protection features, this welder is ideal for garage work, repairs, or fabrication projects.

• 3-in-1 Welding Capabilities: Supports MIG (gasless flux core), MMA (stick), and Lift TIG welding — perfect for steel, stainless steel, and DIY metal fabrication.
• IGBT Inverter Technology: Ensures high energy efficiency and smooth arc starts with output ranging from 20A to 140A.
• Synergic Control System: Automatically adjusts wire feed speed and voltage for cleaner welds and easier operation.
• Built-In Safety Protections: Features overheat, overcurrent, and overload protection, plus waterproof rating for reliable use.
• Compact & Complete Kit: Includes MIG torch, 500A electrode holder, 500A ground clamp, 7-foot power cord, and user manual. Weighs 23.59 lbs with a compact 19.69" x 9.06" x 13.58" package size.

Specifications

Model  MIG-140

Welding Modes:3-in-1: MIG (Flux Core, Gasless), MMA (Stick), Lift TIG

Input Voltage: 90V -140V

Output Current Range:20A – 140A

Compatible Wire Size: φ0.030" (0.8mm) and φ0.035" (0.9mm) Flux-Cored Wire

Technology: IGBT Inverter with Synergic Control

Display: Digital LED Display (Voltage & Current)

Wire Feed System      Built-in automatic wire feeder

Included Accessories            

_7-ft power cord

- 500A Electrode Holder

- 500A Work Clamp

- User Manual

Weight (Net)   14.33 lbs (6.5 kg)

Package Weight :  23.59 lbs (10.7 kg)

Package Dimensions: 19.69" x 9.06" x 13.58" (50 x 23 x 34.5 cm)

WARNING – SAFETY INFORMATION

• Read the user manual thoroughly before operating this machine. Improper use can result in serious injury or equipment damage.

• Always wear appropriate personal protective equipment (PPE) including a welding helmet, gloves, flame-resistant clothing, and eye protection.

• Do not operate in wet or damp conditions. This unit is rated IP21S and should only be used in dry, well-ventilated areas.

• Ensure proper grounding of the machine to avoid electrical shock.

• Keep away from flammable materials during operation as sparks and hot metal may cause fire hazards.

• Disconnect power before servicing, cleaning, or making any adjustments to the machine.

• Use only compatible consumables and accessories as specified in the manual.

• This unit is for trained users only. Inexperienced operators should seek training or supervision.

• Keep children and bystanders at a safe distance during operation.