Abstract: A welding machine includes a welding power supply that generates a welding waveform during a welding operation, an internal combustion engine, and a generator that is operatively connected to the welding power supply to supply electrical energy to the welding power supply. The generator includes a rotor shaft driven by the internal combustion engine, and an end casting located at an end of the generator opposite the internal combustion engine. A rotary screw compressor is mounted to the end casting of the generator. A clutch mechanism couples the rotor shaft to the rotary screw compressor to selectively drive the rotary screw compressor by the rotor shaft.

Abstract: A welding machine includes a welding power supply that generates a welding waveform during a welding operation, an internal combustion engine, and a generator that is operatively connected to the welding power supply to supply electrical energy to the welding power supply. The generator includes a rotor shaft driven by the internal combustion engine, and an end casting located at an end of the generator opposite the internal combustion engine. A rotary screw compressor is mounted to the end casting of the generator. A clutch mechanism couples the rotor shaft to the rotary screw compressor to selectively drive the rotary screw compressor by the rotor shaft.

Abstract: A multi-function machine is provided. In one embodiment, the multi-function machine includes a generator driven by an engine for generating electrical power. The multi-function machine also includes a welding power supply electrically powered by the generator to provide an arc gouging output during an arc gouging process when the multi-function machine is in an arc gouging mode. The multi-function machine further includes an air compressor system driven by the generator to provide a compressed air output to support the arc gouging process. The multi-function machine also includes a controller operatively connected to the welding power supply and the air compressor system. The air compressor system is commanded by the controller to activate to provide the compressed air output when the arc gouging mode is selected and/or change a characteristic of the compressed air output when an arc gouging set point of the arc gouging mode is changed.