The Stayer MIG 131 is an electric arc welding machine designed for flux-cored arc welding (FCAW), commonly known as flux core welding, which operates without external shielding gas supply. This model also supports TIG LIFT ARC welding and stick electrode welding, providing versatile functionality for various metal joining applications. With a maximum TIG electrode diameter capacity of 2.0 mm, the welder features a robust construction that exceeds European directives 2011/65/EU, 2014/35/EU, 2014/30/EU, and EN 60974 standards, ensuring reliable performance and durability. The unit includes a 0.45 kg spool of flux-cored wire and accommodates 1 kg spools, making it suitable for longer welding tasks. Operating at an open circuit voltage of 60 Vdc, this welding machine is designed to be lightweight and compact to enhance portability while maintaining significant welding capacity. Control is achieved through traditional analog rotary knobs, allowing precise adjustment of current, voltage, and wire feed speed. The voltage control function enables control over weld penetration, while the ergonomic carrying handle facilitates comfortable transport. This welder shows tolerance for generator operation in MIG/TIG applications within +/- 15% variation and supports MMA welding with an AC voltage tolerance of 210 V to 264 V. Featuring a red color scheme, the Stayer MIG 131 represents a practical solution for DIY welding projects that require flux-cored capability without gas cylinders.