Miller
907838
Millermatic 142
Output30–140 A.
Duty100 A at 19 V, 60% duty cycle. 80 A at 18 V, 100% duty cycle.
Input120 V, 20 A, single-phase, 50/60 Hz.
PlugPlug not printed
10 min cycle, 120V
No duty percent printed for this outlet.
Does not pass 120V/15A
Does not pass 240V/50A
Sheet
Copied from the cited page. Not taken from another model or a review.
| Spec | Published value | Source, checked 2 November 2026 |
|---|---|---|
| Process | MIG (GMAW) and flux-cored (FCAW). | Quick specs, Processes |
| Output amp range | 30–140 A. | Product page specifications, Amperage Range |
| Rated duty cycle | 100 A at 19 V, 60% duty cycle. 80 A at 18 V, 100% duty cycle. | Quick specs, Rated Output |
| Input voltage and plug | 120 V, 20 A, single-phase, 50/60 Hz. | Quick specs, Input Power |
| Wire or rod size | Set up for .024–.035 in. (0.6–0.9 mm) solid wire and .030–.045 in. (0.8–1.2 mm) flux-cored wire. Uses 4- or 8-inch spools. | Feature paragraph under the quick specs |
| Weight | 33 lb. | Specifications table, net weight, and the quick-spec weight callout |
| Material thickness | Steel: 24 ga.–3/16 in. single pass. Aluminum: 18–14 ga. single pass. | Quick specs, Weld Thickness |
Notes on the source
- Aluminum thickness is printed as 18–14 gauge, not as an inch maximum, so the job check does not convert that gauge.
Manufacturer page · Job check · Miller
From the table
What output does the Millermatic 142 publish?
30–140 A. Source: https://www.millerwelds.com/en-us/equipment/welders/mig-gmaw/millermatic/millermatic-142-m90601/millermatic-142-907838
What duty cycle does the Millermatic 142 publish?
100 A at 19 V, 60% duty cycle. 80 A at 18 V, 100% duty cycle. Source: https://contenthub.itwwelding.com/api/public/content/miller-electric-mfg-llc/spec-sheet/PIM/4877d6-dc12-41.pdf
What input does the Millermatic 142 publish?
120 V, 20 A, single-phase, 50/60 Hz.
Which processes does the Millermatic 142 publish?
MIG, flux-cored.