The foot pedal will control the amperage output. The welder is a scratch start machine.
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Lincoln Electric LE31MP 120V 140 Amp Multi-Process Welder – MIG, Flux Core, Stick & TIG Welding Machine, Portable DC Welder with 60% Duty Cycle, 1/4" Steel Capacity, DIY & Professional Use, Model #K3461-1

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Shipping:
Free shipping (lower 48 states) - Available now
$19.99 Same DayStore Pickup:
1 in stock at Fredericksburg VA - Pickup in under 1 hr
- Multi-process welding versatility: This all-in-one welder supports MIG, Flux-Cored (FCAW), Stick, and TIG welding processes, giving you flexibility for a wide range of applications. Easily switch between processes to handle everything from auto body repair to fabrication and maintenance work using a single machine.
- Powerful 120v performance with wide output range: Operates on standard household 120V power while delivering a 30–140 amp output range for MIG and FCAW welding and 10–120 amps for TIG. Weld 24-gauge sheet metal up to 3/16" in a single pass and up to 1/4" steel using flux-cored wire for heavier-duty projects.
- Smooth arc & user-friendly operation: Engineered with a forgiving arc and minimal spatter, this welder ensures smoother starts and easier control, making it ideal for beginners and experienced welders alike. The intuitive interface and quick setup get you welding fast.
- Heavy-duty wire drive system: Features an adjustable drive system designed to reduce wire tangling and crushing. The cast aluminum gearbox provides increased torque and quiet operation, while the brass-to-brass gun connection enhances conductivity for consistent weld quality.
- TIG ready with auto-detection: Supports TIG welding (torch and pedal sold separately) with automatic detection and configuration when a foot pedal is connected, allowing precise control over weld output for thin materials and detailed work.
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Welder (1) Magnum Pro 100L MIG gun (1) Electrode holder with 10ft. cable (1) Gas regulator and hose (1) Work clamp with 10ft. cable (3) 0.025 contact tips (3) 0.035 contact tips (1) Gas and flux core nozzle (1) Spool of 0.025 MIG wire (1) Spool of 0.035 flux-core wire (1) Spindle Adapter for 8in Diameter Spool (1) Instruction Manual
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Features + Benefits
- Multi-process welding versatility: This all-in-one welder supports MIG, Flux-Cored (FCAW), Stick, and TIG welding processes, giving you flexibility for a wide range of applications. Easily switch between processes to handle everything from auto body repair to fabrication and maintenance work using a single machine.
- Powerful 120v performance with wide output range: Operates on standard household 120V power while delivering a 30–140 amp output range for MIG and FCAW welding and 10–120 amps for TIG. Weld 24-gauge sheet metal up to 3/16" in a single pass and up to 1/4" steel using flux-cored wire for heavier-duty projects.
- Smooth arc & user-friendly operation: Engineered with a forgiving arc and minimal spatter, this welder ensures smoother starts and easier control, making it ideal for beginners and experienced welders alike. The intuitive interface and quick setup get you welding fast.
- Heavy-duty wire drive system: Features an adjustable drive system designed to reduce wire tangling and crushing. The cast aluminum gearbox provides increased torque and quiet operation, while the brass-to-brass gun connection enhances conductivity for consistent weld quality.
- TIG ready with auto-detection: Supports TIG welding (torch and pedal sold separately) with automatic detection and configuration when a foot pedal is connected, allowing precise control over weld output for thin materials and detailed work.
- Stick welding performance: Delivers smooth arc starts to reduce sticking, improving usability and weld consistency. Includes a durable electrode holder and cable for immediate stick welding capability.
- Ready for aluminum (optional accessory) : Capable of MIG welding aluminum with an optional spool gun, expanding your material compatibility and making the welder even more versatile for specialized projects.
- Portable, compact & durable design: Weighing just 46 lbs with compact dimensions, this welder is easy to transport and store, making it perfect for job sites, garages, and workshops where space and mobility matter.
- Long duty cycle for extended work: Built for productivity with a 60% duty cycle (MIG at 95A, Stick at 80A, TIG at 115A), allowing longer weld times with less downtime.
- Complete accessory package included: Comes ready to weld right out of the box with a Magnum Pro 100L MIG gun, electrode holder, gas regulator and hose, work clamp, contact tips, nozzles, wire spools, and more—everything you need to get started immediately.
Key Specs
| Attribute | Specification |
|---|---|
item# | 65816 |
Brand | Lincoln Electric |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 46.0 LB |
Volts | 120 |
Max. Amps | 140 |
Power Type | DC |
Multi-process | Yes |
Spool Gun Included | No |
Welding Processes | Flux-Core, MIG, Stick, TIG |
Max. Weld Thickness | 0.25 in |
Max. Welding Wire Diameter | 0.035 in |
Duty Cycle | Mig: 60% At 95a; Stick: 60% At 80a; Tig: 60% At 115a |
| Attribute | Specification |
|---|---|
Weldable Materials | Mild Steel, Stainless Steel, Aluminum |
Min. Amps | 80 |
Wire Feed Speed Control | Yes |
Cart Included | No |
Mig Ready | Yes |
Power Cord Length | 10 ft |
Clamp Cable Length | 10 ft |
Electrode Cable Length | 10 ft |
Regulator and Gas Hose Included | Yes |
Shielding Gas Required | Yes |
Product Weight | 46.0000 lb |
Dimensions L x W x H (in.) | 18.12 x 9.0 x 13.62 in |
Reviews
Questions & Answers
Questions
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· 3 years ago
what does the foot pedal do does it control amps or volts? is there a high frequency start?
1 answer-
ProductExpert10· 3 years ago
Helpful?
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· 5 years ago
Does this come with a regulator for the co/argon for mig and tig? Can i use 1/8 inch rod for stick process?
1 answer-
ProductExpert6· 5 years ago
The welder does include the regulator and hose. It can be used with a 1/8" rod for stick welding.
Helpful?
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· 5 years ago
120 volt. How many amp circuit breaker
1 answer-
ProductExpert11· 5 years ago
It is recommended to use a 20 amp breaker for this welder.
Helpful?
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· 5 years ago
Is this machine a DC or AC stick welder?
1 answer-
ProductExpert12· 5 years ago
This is a DC stick welder.
Helpful?
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· 5 years ago
what size of welding rods can this welder use?
1 answer-
ProductExpert12· 5 years ago
This welder can use a stick diameter up to 3/32". A couple options we offer are items 34320 and 34318.
Helpful?
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· 5 years ago
Is gas required on for tug welding?
1 answer-
ProductExpert5· 5 years ago
Gas is required for TIG welding.
Helpful?
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· 5 years ago
how long is the magnum pro mig gun
1 answer-
ProductExpert11· 5 years ago
The welder will come with a 10' magnum gun.
Helpful?
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· 5 years ago
What size generator do I need to use this welder
1 answer-
ProductExpert7· 5 years ago
This would require a generator that is capable of providing 3600 running watts.
Helpful?
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· 6 years ago
Cast iron?
1 answer-
ProductExpert7· 5 years ago
This cannot be used to weld cast iron.
Helpful?
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Anonymous· 6 years ago
What type of contact tips does this welder use?
1 answer-
ProductExpert6· 6 years ago
The welder would use the magnum pro tips, such as part number KP2744-035t or KP2744-030T. Currently, Northern Tool does not carry these tips, they would be available through the manufacturer.
Helpful?
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Warranty
Manufacturer's Warranty
3 year limited warranty
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Specifications
120
120/230
120
120/240
140
180
140
200
DC
DC
AC
AC
Yes
Yes
Yes
Yes
No
No
Yes
-
Flux-Core, MIG, Stick, TIG
Flux-Core, MIG, Stick, TIG
Flux-Core, MIG
-
0.25 in
0.31 in
0.18 in
0.38 in
0.035 in
0.045 in
0.035 in
-
Mig: 60% At 95a; Stick: 60% At 80a; Tig: 60% At 115a
Mig: 30% At 165a; Stick: 25% At 160a; Tig: 30% At 165a
20% At 90a
Mig-120v: 30% At 110a; 240v: 30% At 165a
Mild Steel, Stainless Steel, Aluminum
Steel, Stainless Steel, Aluminum
Mild Steel, Aluminum
Aluminum, Steel, Stainless Steel
80
10
30
20
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
10 ft
10 ft
10 ft
-
10 ft
10 ft
10 ft
10 ft
10 ft
10 ft
10 ft
-
Yes
Yes
Yes
Yes
Yes
No
No
-
46.0000 lb
34.5000 lb
22.7000 lb
38.4000 lb
18.12 x 9.0 x 13.62 in
13.6 x 8.9 x 18.1 in
13.7 x 10.15 x 17.9 in
20.8 x 10.6 x 13.4 in
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