Böhler Welding’s patented MultiLine Three Level® inverter technology is at the heart of the TERRA NX 400 PME. It provides exceptional energy efficiency, which translates into lower operating costs. A key advantage is the reliability and instant control of welding arc parameters, which guarantees a stable process and high weld quality.

The technology also enables a significant reduction in the size and weight of the device compared to traditional transformers, making it easier to move and install the power source even in confined spaces. For the professional, this means greater efficiency, lower power consumption and longer welder life.

ArcDrive is a fundamental enhanced MIG/MAG process developed by Böhler Welding, designed for maximum arc stability and reactivity. It features an extremely stable arc glow, which greatly facilitates welding, especially in forced positions and when welding materials of varying thicknesses.

A key benefit of the ArcDrive process is a significant reduction in weld spatter. This means less time-consuming post-weld machining, lower cleaning material costs and higher aesthetics of finished joints. The process is ideal for welding carbon steels, stainless steels, aluminum and core wires, ensuring excellent fusion and weld quality.

PulsDrive is a digitally controlled MIG/MAG pulse welding process that revolutionizes the control of metal transfer into the weld pool. It operates on a “one-pulse-one-drop” principle, which provides unparalleled precision and controllability of the arc. This allows welding with minimal heat input, which is crucial when joining thin materials and alloys sensitive to overheating.

With PulsDrive, the welder achieves an excellent weld finish, with a regular scale pattern, often eliminating the need for additional machining. The process is especially recommended for welding aluminum and stainless steel, where aesthetics and joint quality are a priority. It also provides better fusion control and less risk of distortion.

The Böhler Arc system is an integrated collection of synergistic programs that significantly simplify and optimize the MIG/MAG welding process. After selecting the type of material, wire diameter and shielding gas, the device automatically selects the optimal welding parameters, such as arc voltage and wire feed speed. This is a huge convenience, especially when frequently changing welding tasks.

The benefit for the professional is faster machine setup, less risk of errors and a guarantee of reproducible, high-quality welds regardless of operator skill. Böhler Arc on TERRA NX PME machines covers a wide range of synergies for different materials, including carbon steels, stainless steels and aluminum, making the welder extremely versatile.

The Double Pulse function of the TERRA NX 400 PME is an advanced modulation of the standard pulsed current that produces welds with exceptional aesthetics, resembling the scaling effect characteristic of TIG welding. This is made possible by the precise superimposition of two different pulse frequencies.

Dual Pulse provides excellent control of the weld pool, which is particularly beneficial when welding thin sheet metal and aluminum alloys. This results in less heat input, reduced material distortion and easier welding in forced positions. For the professional, this means welds of the highest visual and structural quality while increasing productivity.