The Firepower MST 140i 3-in-1 machines come complete with all the necessary MIG & Stick components which gives even a beginner the capability to weld immediately, right out of the box.

• Maximum output:140Amp
• MIG (GMAW/FCAW)
• Welding Output @104°F (40°C)140A / 19V @ 15% Duty Cycle
• 90A / 18.5V @ 20% Duty Cycle
• STICK (SMAW)
• Welding Output @104°F (40°C)
• 90A / 23V @ 15% Duty Cycle
• 80A / 23.2V @ 35% Duty Cycle
• TIG (GMAW)
• Welding Output @104°F (40°C)
• 140A / 15.6V @ 15% Duty Cycle
• 100A / 14V @ 20% Duty Cycle
• Current Range
• 10 – 140 Amp
• MIG Welding Voltage Range14.5 – 19 Volt
• Wirefeed Speed Range
• 90 – 390 IPM (2.3 – 9.9 m/min)
• Nominal OCV Volt/DC
• 53 Volt
• Maximum Plate Thickness1/8″ (3.2 mm)