GRAND ARC 161

The GRAND ARC 161 by Lokermann is a compact, inverter-based welding machine designed for professional MMA (stick) and Lift-TIG welding applications. Built around advanced IGBT inverter technology and high-frequency PWM control, the machine delivers a stable arc, fast dynamic response, and consistent welding performance even under demanding conditions.

Its constant-current output ensures arc stability, while integrated protections against over-voltage, over-current, and overheating safeguard both the operator and the equipment. The lightweight construction and compact footprint make the GRAND ARC 161 ideal for workshop use, maintenance work, site operations, and mobile welding tasks.

Unlike adjustable models, Hot Start and Arc Force are automatically optimised by the machine based on the selected welding current, ensuring reliable arc ignition and reduced electrode sticking without operator intervention. The unit supports a wide range of common electrodes and is engineered for continuous operation, even at elevated ambient temperatures.

Key features

• IGBT inverter technology with PWM control
• Stable constant-current output for smooth welding
• Automatic Hot Start and Arc Force optimisation
• Lift-TIG capability without high-frequency ignition
• Digital current display for accurate settings
• Integrated thermal, voltage, and current protection
• Compact design with very low weight
• Suitable for continuous operation at high ambient temperatures

Typical applications

• Industrial maintenance and repair
• Mechanical fabrication
• Construction and site welding
• Shipyards and structural steel work
• Workshops and mobile service units