Forney

X-Series 140 MIGX Welder

SKU: F363
Lititz, PA
M-F 6:30am-8:30pm; Sat 6:30am-4:00pm
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Lititz Your Store 4 in stock
Features chevron-down chevron-up
The Forney® 140 MIGx is a 120V MIG and flux-cored welder featuring TruSet™ that makes dialing in a good arc as simple as choosing your wire, turning a knob, and pulling the trigger. TruSet™ technology, a bright passive LCD display, and a straightforward two-knob interface help you get welding quickly, while the 140 amp inverter output handles 24 ga through 1/4 in. material in a single pass. Backed by a 3-year warranty and Forney® Industries’ 90+ years of welding experience, this TruSet™ MIG welder gives DIYers and small shops a portable, gas-ready machine that can run both solid wire with gas and gasless flux-cored wire.
  • TruSet™ Synergic Setup Assist: Select your material and the machine automatically provides ideal settings for MIG and Flux-Cored processes
  • Expert-Tech® Support: Direct access to USA-based technical support and real welders for setup, troubleshooting, and parts
  • 3-Year Warranty: Provides long-term assurance and reliable performance
  • Bright LCD Display: Large, easy-to-read readouts visible in both dim garages and bright daylight
  • 140 Amp Max Output: Welds 24-gauge to 1/4 in. material in a single pass
  • 30% Duty Cycle at 90A: Spend more time welding and less time waiting for the machine to cool
  • Solid & Flux-Cored Wire Compatible: Weld with gas indoors for cleaner beads, or use gasless flux-cored outdoors
  • Compact & Lightweight: Includes a handle and carry strap for easy transport to any job site
  • 120V Input Power: Plug-and-play operation for standard household outlets
  • Generator Capable: Works with a minimum 4,000W generator (no low-idle, 5% THD max) for off-grid use
  • CSA Certified: Meets strict safety and performance standards
  • Two-Knob Interface: Simple, quick adjustments for voltage and wire feed
  • 4" & 8" Spool Compatible: Accommodates both small and large wire spools to fit your job size
  • Tweco®-Style Consumables & 8 ft Torch: Uses industry-standard parts for easy replacement and excellent conductivity
Specifications chevron-down chevron-up
Brand Forney
Date Added Jul 29, 2026
Store Location (Lititz, PA) Aisle 05, Section N4
Package Length (in) 11.00"
Package Width (in) 8.30"
Package Height (in) 18.40"
Manufacturer Part Number 363
Input voltage 120 VAC, 50–60 Hz, single phase
Input current 13.5 A
Output voltage 13–20 V
Output current Up to 140 A
Duty cycle 30% at 90 A
Wire feed speed 80–200 inches per minute
Processes MIG (Gas Metal Arc Welding, GMAW), flux-cored (Flux Cored Arc Welding, FCAW), TruSet™ MIG, TruSet™ flux-cored
TruSet™ Technology Provides optimal settings based on your materials for fast and easy setup.
Display type Passive LCD, two-knob interface
Wire diameter 0.024" – 0.035"
Single-pass plate thickness 24 ga–1/4"
Power supply type Inverter
Generator requirements 4,000 W continuous output, no low-idle, 5% THD max
Input power cable length 7 ft
Torch length 8 ft copper MIG gun
Ground cable length 8 ft copper ground clamp and lead
Gas connection 5/8–18 RH thread (for MIG with gas)
Spool gun capable No
Spool size compatibility 4" and 8" spools
Machine weight 20.3 lb
Warranty 3 year
Certification CSA Listed
IP rating IP21S