COLDTIG-250 Welding Machine

Welding Machine

Description:

The COLDTIG-250 is a professional 4-in-1 welding machine that supports COLD TIG, PULSE TIG, MMA, and LIFT TIG modes. Designed for precise and controlled welding of various metals — including aluminum, stainless steel, and mild steel — it features advanced controls like adjustable slope times, gas pre/post flow, and spot/pulse timers. Optional features like foot pedal support and a high-quality TFT display enhance usability and accuracy.

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⚙️ 4-in-1 Welding Functions:

• COLD TIG:
  Low-heat TIG welding mode ideal for thin sheets and heat-sensitive metals. Reduces warping and burn-through.

• PULSE TIG:
  Alternating high/low current for precise control of heat input and improved weld quality.

• MMA (Manual Metal Arc):
  Electrode-based welding for strong structural welds across various metals.

• LIFT TIG:
  Contact-based arc start method for TIG, suitable for environments where HF is not ideal.

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🔧 Advanced Features & Controls:

• Slope Up/Down Time (Adjustable):
  Controls how quickly current increases or decreases, minimizing thermal stress and end craters.

• Pre/Post Gas Flow Time (Adjustable):
  Regulates shielding gas before and after welding to protect tungsten and weld pool.

• 2T / 4T Operation Modes:
  Selectable for manual or automatic arc control — ideal for short or long welds.

• Spot Welding & Pulse Time Control:
  Precisely set weld duration or pulse intervals for fine and consistent welds.

• Optional Foot Pedal Function:
  Hands-free control of amperage during welding — excellent for intricate work.

• TIG Cleaning Function (AC TIG):
  Helps clean oxide layers from materials like aluminum, improving weld appearance.

• High-Quality TFT Display:
  Full-color screen for easy parameter visualization and adjustment.

 

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📐 Technical Specifications: