Nash machines and electrode presents pneumatic electrode dressers. The dresser minimizes downtime rather than replacing tips, which is costly, and time consuming alternative. These electrode dressers automatically dress the electrode in seconds with precision, without removing the tip from the machine, which gives uniform weld quality. A properly shaped electrode tip reduces energy consumption during the welding process and greatly extends electrode life. Dressers can be employed on classical spot welding machines in industries, which carries out resistance welding on manual installation. The pneumatic electrode dressers are implemented for dressing electrode of handling welding machines on manual welding lines. They are ideal for dressing welding guns.