The Suitcase 12VS portable wire feeder is designed for flux-cored and MIG welding. It features an injection-molded, crush-proof, flame-retardant case with a tight seal, which protects internal components from dirt, moisture and contaminants. The 28.5-pound unit operates on open-circuit arc voltage. This eliminates the need for a power-supply cord between the feeder and the welding machine. The wire feeder holds wire spools up to 12 inches and runs 0.023- to 5/64-inch diameter wire at speeds of 50 to 700 inches per minute. A contactor/gas solenoid valve comes standard.