Telwin Supertig 280/1 AC/DC 250A TIG & MMA Welding Machine with HF/Lift Ignition and Water Cooling 400V - TEL-833017

The Telwin Supertig 280/1 AC/DC TIG & MMA Welding Machine with HF/Lift Ignition and Water Cooling (TEL-833017) is a professional thyristor-controlled AC/DC TIG and MMA welding machine delivering up to 250A in both AC and DC modes from a 400V two-phase power supply. Supporting TIG welding with selectable High Frequency or Lift-Arc ignition, 2-stroke and 4-stroke operating modes, and adjustable parameters including initial current, pre-gas, post-gas, current downslope, and AC balance, it is engineered for precision TIG fabrication of aluminium, stainless steel, mild steel, titanium, copper, and nickel alloys. With integrated water cooling, MMA capability for rutile, basic, stainless steel, and cast iron electrodes, optional Pulse TIG via an optional device, and remote-control connection, it is a comprehensive professional TIG welding solution for the most demanding precision fabrication applications.

Key Features:

• AC & DC TIG Welding — Selectable AC and DC TIG output for welding aluminium (AC) and stainless steel, mild steel, titanium, copper, and nickel alloys (DC) in a single machine.
• HF & Lift-Arc TIG Ignition — Selectable High Frequency (HF) and Lift-Arc ignition for clean, reliable arc starts across all TIG applications and material types.
• 250A AC & DC Output at 30% Duty Cycle — Full 250A rated output in both AC and DC modes, with 170A AC and 180A DC at 60% duty cycle for extended TIG welding sessions.
• 2-Stroke & 4-Stroke TIG Modes — Selectable 2T and 4T trigger modes for operator comfort during short tacks and extended seam welding.
• Adjustable TIG Parameters — Full control over initial current, pre-gas, post-gas, current downslope, and AC balance for precise weld quality optimisation across all materials.
• AC Balance Control — Adjustable AC balance for optimising oxide cleaning action and electrode life when TIG welding aluminium.
• Integrated Water Cooling — Built-in water cooling system for sustained high-current TIG welding with water-cooled torches without an external cooler.
• Optional Pulse TIG — Pulse TIG capability available with an optional TIG Pulse Device for improved heat control and weld quality on thin materials.
• MMA Welding Mode — Supports MMA welding with rutile, basic, stainless steel, and cast iron electrodes for versatility beyond TIG applications.
• Remote-Control Connection — Remote control socket for convenient current adjustment from the welding position.

Technical Specifications:

• Product Type: Thyristor-Controlled TIG and MMA Welding Machine
• Welding Processes: TIG and MMA
• Welding Current Types: AC and DC
• TIG Ignition: High Frequency or Lift Arc
• Mains Voltage: 400V, Two Phase
• Mains Frequency: 50/60Hz
• AC Welding-Current Range: 15–250A
• DC Welding-Current Range: 15–250A
• Maximum Rated AC Output: 250A at 30% Duty Cycle
• Maximum Rated DC Output: 250A at 30% Duty Cycle
• AC Output at 60% Duty Cycle: 170A
• DC Output at 60% Duty Cycle: 180A
• Maximum No-Load Voltage in AC: 73V
• Maximum No-Load Voltage in DC: 105V
• Absorbed Power at 60%: 6.1kW
• Maximum Absorbed Power: 10.5kW
• Power Factor: 0.4
• TIG Operating Modes: 2-Stroke and 4-Stroke
• Adjustable TIG Parameters: Initial Current, Pre-Gas, Post-Gas, Current Downslope and AC Balance
• MMA Electrode Types: Rutile, Basic, Stainless Steel and Cast Iron
• Pulse TIG: Available with Optional TIG Pulse Device
• Remote-Control Connection: Yes
• Cooling System: Integrated Water Cooling
• Thermal Protection: Yes
• Insulation Class: H
• Protection Rating: IP22
• Dimensions: 96 × 64 × 82cm
• Weight: 113kg

The Telwin Supertig 280/1 AC/DC is a professional thyristor-controlled AC/DC TIG and MMA welding machine that combines HF and Lift-Arc ignition, integrated water cooling, full TIG parameter control, and optional Pulse TIG in a comprehensive precision welding system. Its AC/DC capability, 250A output, and adjustable AC balance make it the definitive choice for professional TIG fabrication of aluminium, stainless steel, titanium, copper, and nickel alloys. A flagship precision TIG welding solution built to Telwin's exacting professional standards.