TIG-250 type arc welding machine adopts advanced Pulse Width Modulation (PWM) technology and insulated gate bipolar transistor (IGBT) power module to convert power frequency to intermediate frequency, so as to replace the bulky traditional arc welding machine with a compact intermediate frequency transformer The power frequency (low frequency) transformer of the TIG-250 type arc welding machine is equipped with arc starting current, current ramp-up time, welding current, base value current, duty cycꦫle, current ramp-down time, arc ending current, after The adjustment knobs such as air supply time, pulse frequency and cleaning effect can realize continuous and stepless setting parameters. This series of welding machines use high-frequency and high-voltage devices to start the arc when argon arc welding is performed to ensure a very high success rate of arc ignition.

1. The whole machin🐲e and all parts are designed with three-proof, high reliability;

2. The power devices 🐷are selected from well-known brands, and the core device IGBT is selected from ST (STMicroelectronics);

3. Reliable, flexible and accurate digital contr♛ol system, adjustable parameters include pre-gassing time, arc-starting current, ramp-up time, peak current, base current, pulse frequency, duty cycle, ramp-down time, and arc-ending current , post-aeration time, etc.;

4. High-speed DC pulse waveform output, the highest frequency can reach 200Hz⛄, the arc is more rigid, the heat affect﷽ed zone is small, and it is more suitable for thin plate welding;

5. With overvoltage, undervoltage and phase loss protection, it can effectively protect the welding 🧸machine from the ꦗharsh power supply environment;

6. Applicable tౠo🍸 generators and any grid voltage between three-phase 320V to 520V.