3 Miller welding machines, model 340. Specifications: operates on a three-phase system with a capacity of up to 340 amps, designed for heavy industrial work. 1 Miller welding machine, model 350P. Specifications: welding output capacity ranges from 25-400 amps, for welding mild steel, stainless steel, and aluminum. MIG-GMAW-GMAW-p-FCAW. Price is negotiable.