TEH TWA400-MMA200 Inverter Welding Machine

Specifications

• Type: Inverter MIG/MMA welding machine for manual arc welding.
• Supply voltage: 160–270 V (single-phase, 50/60 Hz).
• Rated input current: 41.6 A.
• Welding current range: 20–200 A.
• Rated output voltage: 26.4 V.
• Open-circuit voltage: 35–50 V.
• Duty cycle (DC): 60% at 200 A.
• Electrode diameter: 1.6–4.0 mm.
• Insulation class: F (withstands temperatures up to 155°C).
• Protection class: IP21S (protection against solid objects and water splashes).
• Features:
  • Hot Start function for easy arc ignition.
  • Arc Force function for stable arc burning.
  • Anti-Sticking function to prevent electrode sticking.
  • Built-in overheat and overload protection.
  • Capability to operate in unstable power supply conditions (160–270 V).
• Dimensions: ~220×345×220 mm.
• Weight: ~5.4 kg.
• Packing: Welding machine, electrode holder cable (2 m, 25 mm²), ground clamp cable (2 m, 25 mm²), carrying strap, user manual.

Advantages

• Compact size and lightweight for easy portability.
• Stable operation under unstable voltage conditions (suitable for cottage or garage use).
• Convenient for beginners thanks to Hot Start, Arc Force, and Anti-Sticking functions.
• High energy efficiency and low noise level.
• Reliable metal housing, resistant to mechanical damage.

Applications

• Welding of carbon, low-alloy, alloy, heat-resistant steels, cast iron, and non-ferrous metals.
• Household and semi-professional tasks: repair of metal structures, fence fabrication, workshop work.
• Use in construction sites, cottages, and garages.
• Limitations:
  • Not designed for TIG welding of aluminum without additional equipment.
  • Do not use in high humidity or under rain (IP21S protection class).
  • Not suitable for prolonged use with electrodes larger than 4 mm or high currents without breaks.

Usage instructions

1. Check the integrity of the machine, cables, and accessories before starting work.
2. Connect the ground clamp cable to the workpiece and the electrode holder cable to the electrode (diameter 1.6–4.0 mm).
3. Connect the machine to the 220 V (160–270 V) power supply.
4. Set the required welding current (20–200 A) using the control knob on the front panel.
5. Use protective gear (helmet, gloves, clothing).
6. Start welding, holding the electrode at an angle of 70–80° to the surface.
7. If overheated, the machine will automatically shut off (indicator will light up); wait for it to cool down.
8. After use, disconnect the machine from the power supply, clean the cables, and store in a dry place.