Articulated Piston Compressor transfers rotational energy from a motor / pulley into a reciprocating motion used to compress air in a cylinder. The rotational motion is transferred through an eccentric and bearing assembly to the con-rod, on through the wrist pin to the piston itself. This is suited to tough industrial applications that require relatively high flow rates combined with pressure. These compressors are available in AC or pulley driven, with the smaller sizes also being available in DC.