KEYGREE Welding Machine Model TIGMaster-250COLD

The TIGMaster-250COLD and TIGMaster-315COLD are powerful, feature-identical DC inverter TIG welders (250A/315A) offering exceptional versatility with 4-in-1 modes: COLD TIG, high-frequency PULSE TIG (500Hz), MMA, and LIFT TIG. Engineered for precision and ease-of-use, they boast adjustable gas control, specialized torch triggers (2T/4T/4T2/SPOT), Hot Start, Arc Force, and Anti Stick, plus critical ​​cold welding capability (1-990MS)​​ for sensitive materials. Designed for robust efficiency, they include intelligent cooling, parameter memory, a Work Time Tracker, high-duty cycle (60%), and comprehensive protection, coming outfitted with all essential TIG/MMA accessories for high-quality results across diverse applications.​

Included:
- 2M Input Power Cable (3x2.5mm2)
- TIG WP26 Torch (4M/20 Square Cable/Split/Inner and Outer Tubes are PVC/Interface with 3550 Quick Plug/with 5PIN Plug)
- 3M Electrode Cable(25mm² CCA)+300A Holder
- 3M Earth Cable (25mm² CCA) + 300A Clamp
- 3M Gas Hose
- Clamp for gas hoses 2 pcs
- Brushes
- Manual

4-IN-1 VERSATILITY​

Master any job with one machine: Seamlessly switch between COLD TIG, Pulse TIG (500Hz), MMA (Stick), and Lift TIG welding modes.

2T/4T & SPECIAL MODES​

Gain ultimate torch control: Precision welding modes include 2T, 4T, 4T2, SPOT, and Cold Spot Time (400-990ms) for complex tasks.

PULSE MODE

Optimize weld quality on stainless steel and aluminum with high-frequency Pulse TIG. Adjustable pulse frequency up to 500Hz ensures controlled heat input, reduced distortion, and superior arc stability.

SAVE PROGRAMS​

Optimize repeat jobs: Save and recall custom welding parameters for one-touch consistency.

INTELLIGENT COOLING​ SYSTEM

Built for endurance: Auto-adjusting cooling maintains 60% duty cycle, even in demanding conditions.