The VMAC RAPTAIR-MF Multifunction Diesel Drive utilizes VMAC’s advanced compressor control system that is smart enough to turn the engine off when the user is not using air, and automatically turn the engine back on when the user use air again. This totally self-contained unit also provides an AC generator, welder, booster, battery charger and hydraulic capability through an integrated SAE 'A' PTO Port. Providing the power and versatility of three expensive systems weighing over 1 ton, the RAPTAIR-MF combines them all in one compact, powerful package weighing less than 600 lbs.