Miller Millermatic 142 MIG Welder, 120V, 30-140A, MIG/Flux-Cored, 907838
The Miller Millermatic 142 is a 120 V MIG welder for MIG and flux-cored welding on mild steel from 24 gauge to 3/16 in., and it also handles stainless and 18-14 ga. aluminum. It runs on 120 V household power with 30-140 A of output, and Auto-Set chooses the parameters once wire diameter and material thickness are set. A 10 ft MDX-100 gun, regulator and Hobart wire spool are included.
Rated output is 100 A at 19 V with a 60% duty cycle, or 80 A at 18 V with a 100% duty cycle, with 57 VDC maximum open-circuit voltage and 60-600 IPM (1.5-15.2 m/min) wire feed speed. This wire feed welder takes 0.024-0.03 in. solid and stainless wire and 0.03-0.035 in. flux-cored wire on 8 in. spools, and the Quick Select drive roll has two grooves for solid wire sizes and a third for flux-cored. A segmented display covers both Manual and Auto-Set modes.
Smooth-Start gives clean, low-spatter arc starts, and Auto Spool Gun Detect recognizes a MIG gun or spool gun without a switch. Thermal overload protection shuts the unit down and lights the over-temperature indicator if airflow is blocked or the duty cycle is exceeded, and Tip Saver cuts output when the tip shorts to the work. The welder delivers full output on generators of 5,000 watts or more and suits car restoration, garage and shop work, metal art, farm and ranch jobs and welding education.
Highlights
120 V input; 30-140 A output
Rated output 100 A at 19 V, 60% duty cycle; 80 A at 18 V, 100% duty cycle
Mild steel 24 ga. (0.8 mm) to 3/16 in. (4.8 mm); aluminum 18-14 ga. (1.2-1.9 mm)
Auto-Set and Manual modes with a segmented display
Auto Spool Gun Detect; Quick Select drive roll with three grooves
Full output on generators of 5,000 watts or more
Specifications
Brand | Miller |
Manufacturer part number | 907838 |
Processes | MIG (GMAW), flux-cored (FCAW) |
Input power | 110/115/120 V, 1-phase |
Amperage range | 30-140 A |
Rated output | 100 A at 19 V, 60% duty cycle; 80 A at 18 V, 100% duty cycle |
Max open-circuit voltage | 57 VDC |
Wire feed speed | 60-600 IPM (1.5-15.2 m/min) |
Wire diameter | Solid steel and stainless 0.024-0.03 in. (0.6-0.8 mm); flux-cored 0.03-0.035 in. (0.8-0.9 mm) |
Material thickness | Mild steel 24 ga. (0.8 mm) to 3/16 in. (4.8 mm); aluminum 18 ga. (1.2 mm) to 14 ga. (1.9 mm) |
Spool size | 8 in. |
Output type | DC, CV |
Weldable metals | Steel, stainless steel, aluminum |
Portability | Handle; running gear / cart optional |
What's in the box
Millermatic 142 welder
10 ft (3 m) MDX-100 MIG welding gun
10 ft (3 m) work cable with clamp
6.5 ft (2 m) power cord with plug
Argon and Ar/CO2 mix flow gauge regulator with gas hose
Hobart spool of .030 in. (0.8 mm) solid wire
Two contact tips for .030 in. (0.8 mm) wire
Quick Select drive rolls for .024 in. (0.6 mm) or .030/.035 in. (0.8/0.9 mm) solid wire and .030/.035 in. (0.8/0.9 mm) flux-cored wire
Material thickness gauge (#229 895)
Hook-and-loop cord wraps
Good to know
Check the input power (voltage, phase and amperage) against your supply before you order.