SSimder MIG-140 Gasless 5 in 1 Pulse MIG Welder

The Simder Welder MIG-140S is a 140A gasless 5-in-1 that adds Pulse and SPOT spot-welding to flux core MIG, Lift TIG, and stick. At $84.99 it runs on 110V or 220V, so beginners get pulse-controlled beads and timed spot welds without spending $110+ on a 3-in-1 that can't.

At a Glance

Built For

• Thin-metal work — Pulse lowers heat input to reduce burn-through on sheet metal, and timed SPOT welds tack panels cleanly
• Beginners moving up — a 5-in-1 that costs less than a plain 3-in-1 from the big brands
• Home garage & workshop — car body repairs, brackets, shelves, and small fabrication
• Outdoor repairs — gasless flux core works in wind, no gas cylinder to carry
• Stick welding — ARC Force adjusts push to prevent the electrode sticking on rusty or thick steel
• Not for aluminum welding — this model handles steel and stainless; for aluminum, see the SD-4050 Pro with Pulse MIG
• Not for gas MIG — it is a gasless machine; there is no shielding gas hookup

Full Specifications

How It Compares

What makes this a 5-in-1 gasless welder?

It combines three welding processes — flux core MIG, Lift TIG, and Stick — with two advanced functions: Pulse mode and timed SPOT spot-welding. You get capability that usually costs two or three times more.

What does Pulse mode actually do?

Pulse switches the welding current between high and low pulses, which lowers average heat input and reduces spatter and distortion. It activates on flux core MIG, Lift TIG, and Stick — giving you smoother beads on thin metal that a plain 3-in-1 would burn through.

How does SPOT welding work on this machine?

In MIG mode, set the spot-weld time and the machine feeds wire, welds, and stops automatically — like a spot welder for tacking sheet metal. It saves you from overheating the joint or burning through panels.

Does it run on 110V or 220V?

Both. Use a 110V household outlet or plug into 220V with the included conversion cord for full 140A output. Most welders at this price are 110V-only.

What is ARC Force in Stick mode?

ARC Force adjusts the push when the arc shortens, which stops the electrode from sticking to the workpiece. It makes stick welding noticeably easier for beginners on rusty or thick steel.

I keep burning through thin sheet metal — will this help?

Yes, and that is exactly what Pulse is for. The pulsed current keeps average heat low, so thin panels, tubing, and bodywork weld with far less distortion. The SPOT mode also lets you tack panels in place without overheating the joint.

Can I do outdoor fence and farm repairs?

Yes. Gasless flux core handles wind and drafts, and the 220V option gives you the push for thicker posts and brackets. Stick mode with ARC Force covers the rusty steel you find on older fences.

I'm learning — is a 5-in-1 too much to handle?

No, it is actually easier. Pulse gives beginners a more forgiving arc on thin metal, SPOT welds take care of tacking for you, and ARC Force stops the stick electrode from sticking. You get more tools to learn with, not more knobs to fear.

What's included in the box?

MIG welding torch, 0.5 lb flux core wire, electrode holder, ground clamp, 220V conversion cord, and operation manual.

Do I need shielding gas or a tank?

No. This is a gasless flux core welder — the flux inside the wire protects the weld. There is no gas bottle, regulator, or hose to buy, and it works outdoors in the wind.

Can it weld aluminum?

No — this model is built for steel, stainless, and everyday alloys. For aluminum welding, look at Pulse MIG models like the SD-4050 Pro, which welds aluminum without a spool gun.

What's the difference between the two purchase options?

The $84.99 option is the complete gasless 5-in-1 welder. The $129.99 +TIG Torch bundle adds a WP17V TIG torch so you can use Lift TIG out of the box without a separate purchase.

Is it good for a beginner?

Yes. Pulse mode smooths out the learning curve on thin metal, SPOT mode automates tacking, and ARC Force prevents stick electrode sticking. It is one of the most beginner-friendly feature sets at this price.

How is it different from a regular 3-in-1 welder?

A 3-in-1 gives you flux core, Lift TIG, and Stick. This 5-in-1 adds Pulse mode and timed SPOT spot-welding on top — functions you normally only find on machines costing two to three times more.

• MIG welding torch × 1
• 0.5 lb flux core wire × 1
• Electrode holder × 1
• Ground clamp × 1
• 220V conversion cord × 1
• Operation manual × 1

Usually, it takes 3-4 days for us to process the order. It will be delivered within 4-6 working days for our US customers when it is out for delivery from our warehouse.Regions such as AK, PR, HI may take longer. In other countries, we’ll have to deliver from our China supplier. It will take a longer time. It will be delivered within 20-30 days.