This listing is for a USED Miller Deltaweld 450 constant‑potential DC arc welding power source equipped with a Miller S‑22A 24V wire feeder. The Deltaweld 450 is an industrial welding power supply designed for high‑duty‑cycle MIG and flux‑cored welding applications. It is commonly used in fabrication shops, production welding environments, and heavy‑industrial manufacturing. The included S‑22A wire feeder provides adjustable wire speed and voltage control for consistent weld performance in semi‑automatic welding setups.