K2902-1 - Lincoln Power Wave STT Process Module for S-Series Welders

Precision Control for Critical Welds

For professional welders demanding the ultimate in arc control, the Lincoln Electric Power Wave STT Process Module K2902-1 is the definitive solution. This module is specifically engineered to provide access to the Surface Tension Transfer (STT) process, a MIG welding variation that decouples welding current from wire feed speed. This separation allows for unmatched control over heat input and puddle fluidity, making it the gold standard for open root passes on pipe and welding on thin gauge sheet metal where burnthrough is a constant risk. With the K2902-1, you can achieve X-ray quality welds with minimal spatter and reduced fume generation.

Beyond STT, this module equips your Power Wave S350, S500, or R450 with Rapid X and Low Fume Pulse capabilities. Rapid X delivers higher travel speeds on thin sections, while Low Fume Pulse improves the working environment by significantly reducing particulate generation. The module connects effortlessly using ArcLink technology; simply attach the pigtail adapter and the module communicates directly with the power source through the welding cables. There are no complex control cables to route or manage, keeping your workspace clutter-free.

The K2902-1 is built for the reality of the shop and the field. It features a rugged IP23 housing and a Quick Lock system that snaps securely to the bottom of your power source. The unit delivers a rated output of 450A at 100% duty cycle, ensuring it can keep up with the most demanding production schedules. It also includes Ultimarc technology, which dynamically controls heat input parameters in synergic STT modes, allowing you to focus on the puddle rather than constantly adjusting settings. Whether you are welding stainless pipe or mild steel automotive components, this module provides the technological edge needed for superior results.

Technical Advantages for Welders

• Superior Root Passes: STT process eliminates the need for backing rings and makes open root welding easier and faster.
• Burnthrough Control: Independent current control prevents blowing holes in thin materials.
• High Duty Cycle: Rated for 450A at 100% duty cycle for continuous operation.
• Seamless Integration: Works as an extension of the machine with full digital control.