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Compact orange welding machine with digital display and cable connections

VEVOR

VEVOR MMA-140-NA 140A ARC/Lift TIG 2-IN-1 Welder

SKU CH-941W-YPZP1

A 140A ARC welder with lift TIG capability, dual 110V/220V input, hot start, arc force, anti-stick and VRD safety

  • TypeOther Appliances
  • Width8.07
  • 140 A output handles stainless and mild steel with E6013 or E7018 rods
  • Hot Start and Arc Force deliver instant arc strike on first contact
  • Anti-stick function stops electrode freeze-ups during short gaps
  • VRD switch cuts open-circuit voltage for shock protection
  • 16 kg half-bridge inverter runs on 110 V or 220 V mains

140A Dual-Process Welder

The VEVOR MMA-140-NA is a 140 amp stick and lift TIG combination machine built on an IGBT inverter platform. It runs on 110V or 220V input and accepts E6011, E6013, E7014 and E7018 electrodes for stainless and mild steel up to .24 inch thickness.

Inverter Portability And Input Flexibility

At 9.45 by 4.13 by 6.89 inches and 6.97 lbs the half-bridge chassis fits in a small workshop or mobile kit. Dual-voltage operation lets you plug into common household or shop outlets without a dedicated high-amperage circuit. The package includes electrode holder, earth clamp and a starter rod so you can strike an arc immediately.

15% Duty Cycle At 40°C

The unit delivers 100 amps rated output with a 15 percent duty cycle at 40 degrees Celsius, meaning roughly 1.5 minutes of continuous welding per ten-minute period before thermal protection engages. No-load voltage sits at 58 volts and the VRD switch reduces shock hazard when the trigger is released. Fan-assisted cooling manages heat during the active cycle.

Highlights

  • 140 A output handles stainless and mild steel with E6013 or E7018 rods
  • Hot Start and Arc Force deliver instant arc strike on first contact
  • Anti-stick function stops electrode freeze-ups during short gaps
  • VRD switch cuts open-circuit voltage for shock protection
  • 16 kg half-bridge inverter runs on 110 V or 220 V mains

Specifications

TypeOther Appliances
Width8.07

Questions about this item

How long can I weld at 140 A before the 15 % duty cycle forces a pause?

At the rated 140 A output the machine runs for about two minutes in every ten-minute period at 40 °C ambient; exceeding that triggers thermal protection.

What noise and heat should I expect when the unit runs continuously at lower current?

The half-bridge inverter uses an internal fan that runs whenever the power stage is active; at reduced amperage the fan stays on but sound stays at a low workshop hum.

Which input voltage must my workshop supply for the welder to operate?

The power cord accepts 110 V or 220 V single-phase mains; the machine auto-senses the voltage so no manual switching is required.

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