ARC welding machine Weldman ARC-203, inverter ARC-203 by Weldman, MPN 103017

Weldman ARC-203 is an ARC (stick) inverter welding machine designed for MMA manual metal arc welding. The compact unit provides portable welding capability for workshop, construction and maintenance tasks where stable arc performance and adjustable current are required. Its inverter technology delivers a lightweight, energy-efficient power source that supports welding of steel and other coated metals with commonly used electrodes.

Advantages

The ARC-203 inverter offers stable arc ignition and control across a range of welding currents, enabling consistent bead quality. Its compact and lightweight design simplifies transport and setup at jobsites while inverter electronics improve energy efficiency compared with older transformer-based machines. Built-in thermal protection reduces the risk of overheating during intermittent heavy use and the front-panel controls allow fast, intuitive adjustment of welding current to match electrode type and workpiece thickness.

Suitable for

• Repair and maintenance work in workshops and garages
• Light to medium fabrication on steel and coated metals
• Construction site welding where portability is important
• Hobbyist and DIY metal-joining projects

Key specifications

• Welding process: MMA (manual metal arc) / stick welding
• Inverter-based power source for reduced weight and improved energy efficiency
• Adjustable welding current range suitable for common electrode diameters
• Thermal overload protection to prevent damage from overheating
• Portable, compact housing with carrying handle for site mobility
• Front-panel control for precise current adjustment and operation feedback

How to use

Connect the welding leads and earth clamp according to the safety instructions and select the appropriate electrode for the material and joint type. Set the welding current using the front-panel control to match the electrode diameter and base metal thickness. Strike the arc using standard MMA techniques and maintain a consistent travel speed and electrode angle to achieve an even weld bead. Allow the inverter unit to cool if thermal protection activates and follow recommended duty cycles to avoid overheating.

Usage recommendations

Use suitable personal protective equipment including a welding helmet, gloves and protective clothing. Choose electrodes recommended for steel or coated metals and ensure clean joint surfaces for best results. For extended or heavy-duty work, monitor duty cycle and allow rest periods to maintain performance and longevity of the inverter.