WS 400A

The Mechweld WS-400A stands out as a high-performance TIG and MMA (Stick) inverter welder, engineered for demanding industrial, workshop, and fabrication tasks. Combining advanced features with portability and user safety, it’s a reliable solution for professionals who demand precision and flexibility.

Key Highlights:

• Dual-Process Capability: Supports both TIG (DC) and MMA welding, catering to a wide variety of metals like carbon steel, stainless steel, copper, and more.

• High Power Output: Achieves welding currents from 10 A up to 400 A, with a standard 60% duty cycle, ensuring consistent welds in continuous operations.

• Intuitive Digital Control: Features a digital display for precise current adjustment—making setup fast, accurate, and repeatable.

• Smart Protection Systems: Integrated safeguards against over-voltage and over-current enhance machine reliability and protect both equipment and operator.

• Arc Stability and Quality: Engineered for fast response, clean arc ignition, minimal spatter, and attractive weld seams with low magnetic bias.

• Efficient & Portable Design: Lightweight with compact dimensions, this unit is engineered for ease of transport, practical use in tight spaces, and mobility on construction and fabrication sites.

• Efficiency & Technical Specs:

  • Rated power: Around 6.3 kVA

  • Efficiency: Approximately 90%

  • Power factor: About 0.9

  • Protection rating: IP21S

  • Insulation class: F

  • Approximate dimensions: 380 × 160 × 300 mm

  • Weight: Close to 8.5 kg.

Ideal Use Cases:

• Perfect for fabricators, maintenance teams, and industrial workshops requiring both TIG and MMA welding functionality.

• Well-suited for on-site fabrication, due to its rugged design and portability.

• Great for users seeking fine welding control, ease of adjustment, safety features, and strong arc performance.