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Lincoln Electric SP 140T MIG Welder Factory Demo Welding Machine - U2688-3

SKU: U2688-3
$545.00
Full New Factory Warranty Same warranty as a brand-new unit — backed by Lincoln Electric.
Financing / Leasing Available

Welding Equipment & Industrial Supply Financing

WeldingMart has partnered with Clicklease to offer fast, flexible financing for welding equipment and industrial supplies. Get the equipment you need with affordable monthly payments tailored to your budget.

Whether you're purchasing a new MIG welder, TIG welder, engine-driven welder, or welding accessories, our financing solutions help you equip your shop without large upfront costs. We offer lease-to-own options on trusted brands like Lincoln Electric, Miller Electric, and more.

Apply in minutes and get a decision in seconds:

  • No hard credit check
  • No lengthy paperwork
  • Fast approvals

Why Choose Lease-to-Own Welding Equipment?

Lease-to-own financing gives you the flexibility to grow your business while preserving cash flow.

Key benefits include:

  • Low upfront cost – Start using equipment without a large initial investment
  • Flexible terms – Choose payment plans that fit your budget
  • Access to latest technology – Stay competitive with modern welding equipment
  • Ownership options – Buy the equipment, upgrade, or return it at the end of the lease

You also have the option to purchase your equipment early, including within the first 12 months.

Tax Advantages

In many cases, lease payments for business-use equipment may be tax-deductible. This can reduce your overall cost and free up capital for additional tools, supplies, or labor.

(Consult your tax advisor for details.)

Apply in Minutes

Financing is available 24/7, so you can apply whenever it’s convenient.

  • Application takes about 4 minutes
  • Instant decision in most cases
  • Immediate access to eDocs
  • Order your equipment right away

If approved for more than your initial request, you can easily adjust your financing to include additional items.

Need Help?

Have questions about financing or lease-to-own options?

Contact the WeldingMart team — we’re here to help you find the right solution for your business. 877-532-9353.

 
The Lincoln SP 140T - U2688-3 is a professional-grade MIG welder delivering 140 amps of output power. Ideal for home projects, farm repair, and autobody work, this compact machine features superior arc performance, precise wire drive, and minimal spatter for consistent, high-quality welds.
Input Power: 120V (Standard Outlet)
Overview
Overview

The Lincoln Electric SP 140T MIG Welder Factory Demo Welding Machine is a Lincoln Electric MIG (GMAW) and Flux-Cored (FCAW) welder rated for 100-200A output on 120V input power, capable of welding material from 24 ga, 22-18 ga with a duty cycle of 20% @ 90A. WeldingMart is an authorized Lincoln Electric dealer — every unit ships from our Wisconsin facility with full manufacturer warranty and knowledgeable support. This listing is a factory demonstrator or inspected pre-owned unit — professionally verified and tested before shipment, representing significant savings versus new retail pricing.

Browse related products: MIG Welders | MIG & Flux-Cored Welding Wire | MIG Welding Guns & Torches.

Key Specifications
Welding Processes MIG (GMAW), Flux-Cored (FCAW)
Amperage Range 0-100A, 100-200A
Input Voltage 120V
Phase single-phase
Weld Thickness Range 24 ga, 22-18 ga
Duty Cycle 20% @ 90A
Wire Diameter Range 0.025", 0.045"
Use Cases
  • Farm and agricultural equipment repair: Handles frame rails, hitch components, and implement repairs up to 1/4" steel in the field or shop.
  • Automotive and light truck fabrication: Roll cages, chassis bracing, and exhaust work benefit from precise arc control and dual-voltage flexibility.
  • Light structural fabrication: Weld up to 3/16"–1/4" plate for brackets, trailers, and light frames with consistent results.
  • General maintenance and repair shops: Versatile enough for daily production tasks across a wide variety of base metals and joint designs.
  • Hobbyist and home shop use: Advanced features in a portable chassis that fits standard shop space without dedicated 3-phase service.
What's in the Box
  • Lincoln Electric SP 140T MIG Welder Factory Demo Welding Machine welding machine
  • MIG gun / welding torch
  • Work clamp (ground clamp) and work cable
  • Operator's manual
  • Drive roll set
Documents
About Lincoln Electric and WeldingMart

WeldingMart has been an authorized Lincoln Electric dealer since 2003, shipping genuine factory-certified welding equipment from our warehouse in Wisconsin to professionals and fabricators across the United States. Our staff includes certified welding professionals who can assist with process selection, consumable compatibility, and application-specific parameter recommendations — call or chat before you buy to ensure you're ordering the right machine for your application.

Condition

This unit has been inspected, tested, and verified to meet Lincoln Electric performance standards. Factory demonstrator and refurbished units come with the same functionality as new, and are an excellent value for buyers who need professional-grade welding performance at a reduced price. See product listing for specific warranty and return terms.

Specifications

Machine Inputs & Outputs

  • Phase 1: Input Voltage #1 (Voltage/Phase/Hertz): 120/1/60
  • Phase 1: Rated Output #1A (Current/Voltage/Duty Cycle): 90A/19.5V/20%
  • Phase 1: Input Current at Max Rated Ouput #1 (Current): 20A

Product Weights & Dimensions

  • Dimensions (H x W x D): 13.65 in x 10.38 in x 17.9 in (347 mm x 264 mm x 455 mm)
  • Net Weight: 49.5 lbs (22.5 kg)

General Specification

  • Weld Thickness Max: 5/16"
  • Max Amperage: 100-200 Amps
  • Input Power: 115V
  • Machines Processes: Flux-Cored (FCAW), MIG (GMAW)
  • Input Voltage: 120
  • Input Hertz: 60
  • Input Phase: 1
  • Input Power: 120/1/60
  • Mode Icon: CV
  • Output Range: 30-140A DC
  • Polarity: DC

Wire Feeding Specifications

  • Wire Feed Speed Range (IPM): 50-700
  • Wire Feeders Processes: MIG, Flux Cored

Application

  • Typical Application: Automotive, Brewery, Distillery, General Fabrication, Maintenance & Repair, Repair Welding

Warranty

  • Warranty: 3 Years

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