Weld Star Infinium Powerful 4-In-1 Multi-Process Welder with LCD

The Weld Star Infinium 4-in-1 Multi-Process Welder is a compact, high-performance inverter welding machine engineered to deliver professional results across a wide range of applications. Designed with advanced IGBT inverter technology and Power Factor Correction (PFC), this machine combines energy efficiency, generator compatibility, and a wide input voltage range, making it suitable for workshop, site, and mobile use.

At the heart of the Infinium is a 5” colour LCD touch screen, providing an intelligent, user-friendly graphical interface for fast setup and precise control. With Synergic MIG, parameters are automatically optimised based on material thickness and voltage, while advanced MIG Pulse and Dual Pulse modes deliver superior weld appearance and penetration on a variety of materials.

This versatile unit supports MIG/MAG, TIG AC/DC, and MMA AC/DC welding processes, including advanced TIG features such as HF or Lift TIG, multi-wave Smart TIG, pulse functions, and full AC control for aluminium welding. MMA welding is equally capable, with pulse mode, hot start, adaptive arc force, and built-in VRD for enhanced safety and arc stability.

Weighing only 20 kg, the Infinium is highly portable without compromising power, offering up to 200A output and the ability to store up to 100 user programs for rapid repeat jobs. A 4-roll wire feed motor ensures consistent wire delivery, even with longer torches and softer wires.

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Key Features

• Advanced IGBT multi-process inverter technology

• Power Factor Correction (PFC) with wide input voltage 95–265V

• Automatic dual voltage detection (110V / 230V)

• Generator friendly design

• MIG/MAG: Standard, Synergic, Pulse & Dual Pulse

• TIG AC/DC: HF or Lift, Smart TIG, pulse, slope up/down, 2T/4T

• MMA AC/DC with pulse, hot start, adaptive arc force & VRD

• 5” colour LCD touch screen with intuitive navigation

• Smart fan system reduces dust intake and power consumption

• Stores up to 100 welding programs

• USB port for firmware updates

• Advanced error code diagnostics

• IP23 protection rating

• Fully compliant with EN 60974-1, EU Regulation 2019/1784, CE and UKCA

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Supplied Complete With

• T240-3 MIG Torch – 3 m

• T26-4 TIG Torch – 4 m

• Gas regulator

• Gas hose

• Work return lead and clamp

• Electrode holder and lead

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Optional Accessories

• 2-wheel trolley

• Wired foot pedal

• Wireless foot pedal

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Technical Data – WS-MU4-1N

• Input Voltage: AC 95–265V ±15%, 50/60Hz

• Input Power: 4.5 / 7.5 kVA

• Current Range:

  • MIG: 25–230 A

  • TIG: 10–200 A

  • MMA: 10–200 A

• No-Load Voltage: MIG 80V / MMA 88V / TIG 88V

• Duty Cycle @ 40°C: 230A @ 25%

• Efficiency: 85%

• Power Factor: 0.99

• Idle Power Consumption: 30 W

• Wire Spool Capacity: 5 kg / 200 mm

• Protection / Insulation Class: IP23 / H

• Dimensions (L × W × H): 780 × 220 × 430 mm

• Weight: 20 kg

The Weld Star Infinium 4-in-1 is an all-in-one solution for fabricators, maintenance engineers, and professional welders seeking maximum flexibility, advanced control, and reliable performance in a single compact machine.