K4499-1 - Lincoln POWER MIG 140 MP TIG One-Pak Multi-Process Welder

Versatile Multi-Process Welding Solution

The Lincoln Electric POWER MIG 140 MP TIG One-Pak (K4499-1) is a comprehensive welding system designed for versatility and portability. Engineered for the maintenance professional, automotive restorer, and serious hobbyist, this machine integrates MIG (GMAW), Flux-Cored (FCAW), Stick (SMAW), and DC TIG (GTAW) capabilities into a single compact unit. Operating on standard 115V household power, it eliminates the need for heavy industrial power infrastructure, making it an ideal choice for home workshops and light industrial applications.

Technical Performance and Specifications

Despite its small footprint, the POWER MIG 140 MP delivers robust performance across all processes. It offers a MIG welding output range of 30-140 Amps, allowing for the welding of thin gauge sheet metal up to thicker sections with multiple passes. The DC TIG output ranges from 10-120 Amps, providing stable arc control for precision work on steel and stainless steel. For Stick welding applications, the unit provides 25-90 Amps of output. The machine features a rated output of 95A at 18.75V with a 60% duty cycle, ensuring reliable operation during extended welding sessions.

Complete TIG One-Pak Configuration

Unlike standard base models, the K4499-1 TIG One-Pak is shipped with essential TIG accessories, providing immediate readiness for GTAW applications. The package includes a PTA-9 TIG Torch (12.5 ft) and a K4361-1 Foot Pedal for remote amperage control, which is critical for managing heat input on thinner materials. The intuitive user interface features simple two-knob control for voltage and wire feed speed, along with a single push-button for rapid process selection.

Portability and Expandability

Weighing only 34.5 lbs (approx. 15.6 kg), the POWER MIG 140 MP is highly portable, allowing users to easily transport the unit to the workpiece. The machine is also Spool Gun Ready, featuring built-in circuitry to accept the optional Magnum PRO 100SG spool gun, enabling effective aluminum MIG welding without the feeding issues associated with standard push guns.