This welder has a 3 year limited warranty through the manufacturer.
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Lincoln Electric Certified Pre-Owned Easy MIG Flux-Core/MIG Welder Transformer, 115V, 30-140 Amp Output Model # U2688-3

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- Plug in the MIG 140 wire feed welder anywhere 120V input power is available
- Weld up to 140 Amps with a maximum thickness of 5/16in.
- Includes metal case for protection from the elements
- Portable and ideal for maintenance and mobile welders
- Simple two-knob control for wire speed and voltage
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Lincoln Electric Certified Pre-Owned MIG 140 Flux-Core/MIG Welder, Model# U2688-3 (1) MIG Gun (3) .025in. Contact Tips (2) .035in. Contact Tips (1) Gasless Nozzles (1) Spindle Adapter for 8in. Diameter Spools (1) Shielding Gas Apparatus (1) Sample Spool MIG Wire (1) Sample Spool of Flux-Core Wire (1) Drive Roll for .025 and .035 Wire (1) Work Clamp
Features + Benefits
- Plug in the MIG 140 wire feed welder anywhere 120V input power is available
- Weld up to 140 Amps with a maximum thickness of 5/16in.
- Includes metal case for protection from the elements
- Portable and ideal for maintenance and mobile welders
- Simple two-knob control for wire speed and voltage
- Best for DIY projects, hobbyists, home repairs and more
- Fully adjustable drive system reduces the chance of wire tangling and crushing
- Brass-to-brass gun connection enhances conductivity
- Ideal for use in the shop, on the farm or at home
- MIG aluminum welder capabilities with spool gun sold separately
Key Specs
| Attribute | Specification |
|---|---|
item# | 115201 |
Brand | Lincoln Electric |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 63.0 LB |
Volts | 115 |
Max. Amps | 140 |
Power Type | DC |
Multi-process | Yes |
Spool Gun Included | No |
Welding Processes | Flux-Core, MIG |
Max. Weld Thickness | 0.31 in |
Max. Welding Wire Diameter | 0.035 in |
| Attribute | Specification |
|---|---|
Duty Cycle | 20% At 90a |
Weldable Materials | Steel, Stainless Steel, Aluminum |
Min. Amps | 30 |
Wire Feed Speed Control | Yes |
Cart Included | No |
Mig Ready | Yes |
Power Cord Length | 6 ft |
Clamp Cable Length | 10 ft |
Regulator and Gas Hose Included | Yes |
Shielding Gas Required | Yes |
Product Weight | 50.0000 lb |
Dimensions L x W x H (in.) | 13.7 x 10.15 x 17.9 in |
Reviews
Questions & Answers
Questions
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· a year ago
Does have a warranty
1 answer-
ProductExpert30· a year ago
Helpful?
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· a year ago
Are these photos of the actual unit I am purchasing? How are used? How preowned do you mean?
1 answer-
ProductExpert6· a year ago
This would be the same model you would receive. We do have the specifics on how pre-owned they were. They may have been returned for various reasons and would have been checked for any needed repairs.
Helpful?
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· 2 years ago
Can you use wite0.30 on the 0.35 roller
1 answer-
ProductExpert11· 2 years ago
The welder can be used with both 0.030 flux core and MIG steel wire.
Helpful?
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· 2 years ago
how do you reload the wire
1 answer-
ProductExpert11· 2 years ago
Place the spool of wire on the the spool spindle. Orient the spool so that the wire feeds off the top of the spool. Secure the spool by tightening the wing nut against the spacer that hold the wire spool on the spindle. Do not over tighten the spool. Open the pivot arm by rotating the tension arm assembly down and lift pivot arm assembly up. Remove drive roll by unscrewing the black knob that holds the drive roll on. Groove drive roll with .035 mark facing outward which will allow feeding of .035 wire. Carefully unwind and straighten the first six inches of welding wire from the spool. Do no let the end of the wire go to prevent the wire from unspooling. Feed the wire through the incoming guide, over the drive groove, thru the outgoing guide and wire drive outlet on the gun side. Close the pivot arm assembly and secure by rotating the tension arm assembly back to the up position. Remove the nozzle from the gun and contact tip. Straighten the gun out flat. Turn the machine power on and depress the gun trigger to feed the wire through the gun liner until the wire comes out of the threaded end of the gun several inches. When trigger is released spool of wire should not unwind. Adjust wire spool brake accordingly.
Helpful?
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· 2 years ago
Where is Lincoln MiG welder made
1 answer-
ProductExpert6· 2 years ago
This welder is made in Mexico.
Helpful?
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Anonymous· 2 years ago
Can I use this without flux core wire? I want to use gas.
1 answer-
ProductExpert11· 2 years ago
The welder will work with both flux core and solid (MIG) wire.
Helpful?
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· 2 years ago
does this come with the gas regulator?
1 answer-
ProductExpert7· 2 years ago
Yes, the gas hose and regulator are included.
Helpful?
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· 3 years ago
is this welder spool gun accepted?
1 answer-
ProductExpert11· 3 years ago
The welder will work with the spool gun item number 106738 (model number K3269-1).
Helpful?
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Warranty
Manufacturer's Warranty
3 year limited warranty
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Specifications
115
115/230
-
115
140
210
-
80
DC
AC
AC
-
Yes
Yes
-
No
No
-
-
-
Flux-Core, MIG
Flux-Core, MIG
-
Flux-Core Only
0.31 in
0.38 in
-
0.31 in
0.035 in
0.045 in
-
0.035 in
20% At 90a
30% At 150a
-
20% At 80a
Steel, Stainless Steel, Aluminum
Steel, Stainless Steel, Aluminum
-
Carbon Steel
30
-
-
60
Yes
Yes
-
Yes
No
No
-
No
Yes
Yes
-
No
6 ft
5.6 ft
100 ft
6 ft
10 ft
10 ft
-
6 ft
Yes
Yes
-
No
Yes
No
-
No
50.0000 lb
lb
13.9000 lb
lb
13.7 x 10.15 x 17.9 in
19.5 x 10.62 x 12.37 in
5.25 x 12.0 x 6.5 in
18.0 x 10.0 x 12.0 in




















