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The Miller Millermatic 142 MIG Welder is a compact yet powerful welding solution designed for light to medium-duty applications. Perfect for DIY enthusiasts, maintenance professionals, and small fabrication shops, this 120V welder delivers smooth arc performance and reliable wire feed control. With an intuitive interface and Auto-Set™ technology, the Millermatic 142 eliminates the guesswork, automatically adjusting voltage and wire speed based on material thickness and wire type. Its portability and ease of use make it ideal for both beginners and experienced welders seeking consistent, high-quality results for steel, stainless, and aluminum projects (with optional spool gun). Built with Miller's reputation for durability and performance, the Millermatic 142 ensures a professional-grade weld with every pass.
Key Features:
-
Auto-Set™ Technology: Automatically adjusts settings for optimal weld parameters — perfect for beginners and efficiency-seekers.
-
120V Input Power: Plugs into standard household outlets, providing flexibility for use anywhere.
-
Smooth-Start™ Feature: Delivers smooth, spatter-free starts to improve weld quality.
-
Quick Select™ Drive Roll: Allows for fast setup with three grooves for different wire types/sizes.
-
Fan-On-Demand™: Reduces noise and dust intake by running the cooling fan only when needed.
-
Durable Build: Trusted Miller construction for long-lasting performance.
| Title | Millermatic 142 MIG Welder |
| Applications | Car Restoration Garage/Shop Metal Art Welding Education and Training Welding Projects |
| Industries | Racing Farm and Ranch Manufacturing |
| Amperage | 30 A - 140 A |
| Material Thickness | Aluminum 18 ga. (1.2 mm) - 14 ga. (1.9 mm) Mid Steel 24 ga. (0.8 mm) - 3/16 in. (4.8 mm) |
| Weldable Metals | Aluminum Stainless Steel Steel |
| Current Type | DC |
| 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 | 1.5 m/min - 15.2 m/min 60 IPM - 600 IPM |
| Wire Diameter | Stainless 0.024 in - 0.03 in Stainless 0.6 mm - 0.8 mm Solid Steel 0.6 mm - 0.8 mm Solid Steel 0.024 in - 0.03 in Flux Cored 0.03 in - 0.035 in Flux Cored 0.8 mm - 0.9 mm |
| Spool Size | 8 in. |
| Portability | Handle (s) Running Gear / Cart (Optional) |
| Weld Output | CV |
| Input Voltage | 110/115/120 V |
| Input Phase | 1-Phase |
| Input Hz | 60 Hz |
| Accessories | Miller AccuLock MDX Contact Tip: 219.14.T-M030 Chemstar Anti-Spatter Spray: 219.09.00700 TechniWeld Flux Cored Spool 71T-GS: 219.10.00375 Miller Spoolmate 100: 219.14.300371 |
The Miller Millermatic 142 MIG Welder is a compact yet powerful welding solution designed for light to medium-duty applications. Perfect for DIY enthusiasts, maintenance professionals, and small fabrication shops, this 120V welder delivers smooth arc performance and reliable wire feed control. With an intuitive interface and Auto-Set™ technology, the Millermatic 142 eliminates the guesswork, automatically adjusting voltage and wire speed based on material thickness and wire type. Its portability and ease of use make it ideal for both beginners and experienced welders seeking consistent, high-quality results for steel, stainless, and aluminum projects (with optional spool gun). Built with Miller's reputation for durability and performance, the Millermatic 142 ensures a professional-grade weld with every pass.
Key Features:
-
Auto-Set™ Technology: Automatically adjusts settings for optimal weld parameters — perfect for beginners and efficiency-seekers.
-
120V Input Power: Plugs into standard household outlets, providing flexibility for use anywhere.
-
Smooth-Start™ Feature: Delivers smooth, spatter-free starts to improve weld quality.
-
Quick Select™ Drive Roll: Allows for fast setup with three grooves for different wire types/sizes.
-
Fan-On-Demand™: Reduces noise and dust intake by running the cooling fan only when needed.
-
Durable Build: Trusted Miller construction for long-lasting performance.
| Title | Millermatic 142 MIG Welder |
| Applications | Car Restoration Garage/Shop Metal Art Welding Education and Training Welding Projects |
| Industries | Racing Farm and Ranch Manufacturing |
| Amperage | 30 A - 140 A |
| Material Thickness | Aluminum 18 ga. (1.2 mm) - 14 ga. (1.9 mm) Mid Steel 24 ga. (0.8 mm) - 3/16 in. (4.8 mm) |
| Weldable Metals | Aluminum Stainless Steel Steel |
| Current Type | DC |
| 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 | 1.5 m/min - 15.2 m/min 60 IPM - 600 IPM |
| Wire Diameter | Stainless 0.024 in - 0.03 in Stainless 0.6 mm - 0.8 mm Solid Steel 0.6 mm - 0.8 mm Solid Steel 0.024 in - 0.03 in Flux Cored 0.03 in - 0.035 in Flux Cored 0.8 mm - 0.9 mm |
| Spool Size | 8 in. |
| Portability | Handle (s) Running Gear / Cart (Optional) |
| Weld Output | CV |
| Input Voltage | 110/115/120 V |
| Input Phase | 1-Phase |
| Input Hz | 60 Hz |
| Accessories | Miller AccuLock MDX Contact Tip: 219.14.T-M030 Chemstar Anti-Spatter Spray: 219.09.00700 TechniWeld Flux Cored Spool 71T-GS: 219.10.00375 Miller Spoolmate 100: 219.14.300371 |
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