


Prices Exclude Tax
The GYS KRONOS 400T DUO is a premium three-phase multi-process inverter welder engineered for the most demanding industrial and automotive applications. Its modular dual-wire design allows operators to connect two different wire feeders, providing seamless transitions between materials such as steel, stainless steel, aluminium, and flux-cored wire. With intelligent synergy control and an intuitive 3.5” multilingual colour interface, welders can achieve optimal parameters automatically by entering wire diameter, material type, and thickness. The Easy Mode simplifies operation for general users, while Expert Mode provides complete control for advanced welders. Offering exceptional arc stability, precise digital regulation, and a rugged IP23S-rated chassis, the KRONOS 400T DUO is built for high-duty performance in tough environments. It is ideal for bodyshops, manufacturing, and fabrication workshops that demand versatility, productivity, and superior weld quality.
Collections: Best Selling Products, Newest Products
The KRONOS 400T DUO is designed for professional fabricators, heavy-duty repair centres, and high-production welding environments that require flexibility and consistency. With its dual-wire setup and advanced control, it’s perfect for operations that frequently switch between wire types or materials.
| Specification | Details |
|---|---|
| Reference | 075337 |
| Input Voltage | 400V – 3 Phase (50/60Hz) |
| Output Current Range | 15A – 400A |
| Duty Cycle (40°C) | 300A @ 60%, 280A @ 100% |
| Welding Processes | MIG/MAG, MMA DC/Pulse, TIG DC Lift/Pulse |
| Wire Diameter | Steel/Stainless: 0.6–1.2mm | Aluminium: 0.8–1.2mm | Flux-Cored: 0.9–1.6mm |
| Wire Feed Speed | 1.5 – 20 m/min |
| Protection Rating | IP23S (Industrial Use) |
| Dimensions (mm) | 900 × 550 × 670 |
| Weight | 66 kg |
| Compliance | EN 60974-1 |
The KRONOS 400T DUO allows two wire feeders to be connected simultaneously, letting operators switch between materials instantly without reconfiguration—ideal for high-output environments.
Yes, the machine supports MMA DC/Pulse and TIG DC Lift/Pulse welding, providing full flexibility for multi-process use.
After inputting wire type, gas, and thickness, the synergy system automatically adjusts voltage and current for optimal welds, minimising setup time and improving consistency.
Absolutely. With a 400A maximum output and IP23S rating, it’s ideal for demanding industrial and workshop environments where durability and reliability are essential.



As an authorised GYS Service Centre, BWS Ltd provides certified installation, setup, and ongoing calibration support for the entire GYS welding range. We ensure your equipment is ready for professional use, backed by a UK-wide network of trained engineers. Trusted since 1994, BWS delivers expert advice, responsive service, and genuine GYS products to help your workshop perform at its best.