Description
Unimig Foot Controller – UTJRFC-4
Overview
The Unimig Foot Controller (UTJRFC-4) is a high-quality TIG welding accessory designed to give operators precise, hands-free control over welding current. Built for compatibility with Unimig AC/DC TIG welders, it connects via a 7-pin plug and allows real-time amperage adjustment during welding. This improves control over heat input, resulting in cleaner welds and better finish quality. The unit suits machines such as the Razor 200 AC/DC, Razor 320 AC/DC, and Viper 180 AC/DC, making it a versatile addition to many workshop setups. Its simple plug-and-play design ensures quick installation and immediate usability.
Function & Control
The UTJRFC-4 enables remote amperage control directly from the foot pedal, allowing welders to increase or decrease current smoothly while working. This is especially useful for TIG welding applications where precision is critical, such as thin materials or detailed fabrication. The pedal action provides responsive control, helping maintain arc stability and reduce the risk of burn-through. It also includes a built-in potentiometer for consistent and accurate signal input to the welding machine.
Build & Design
Constructed from robust metal, the foot controller is designed for long-term durability in workshop environments. It features an ergonomic pedal angle for comfortable operation and a strong return spring for responsive feedback. The sturdy housing protects internal components, while the compact design ensures it can be easily positioned at the workstation. Its rugged construction makes it suitable for frequent use in demanding fabrication conditions.
Compatibility
This foot controller suits a range of Unimig TIG welders with 7-pin connections, including Razor and Viper AC/DC models. It integrates seamlessly with compatible machines, allowing users to take full advantage of TIG welding control features without complex setup. Its broad compatibility makes it a practical upgrade for improving welding precision across multiple systems.
Applications
The UTJRFC-4 is ideal for precision TIG welding tasks such as stainless steel fabrication, aluminium work, and automotive applications. It performs best in situations where variable heat control is essential, helping operators produce cleaner welds with reduced rework. The hands-free operation also improves workflow efficiency and operator comfort during extended welding sessions.





