Does a high-pressure air compressor have a crankshaft?

‌High-pressure air compressors have crankshafts. The crankshaft of a high-pressure air compressor is an important component of it, usually driven by an electric motor through a V-belt. The main function of the crankshaft is to convert the rotational motion of the motor into the reciprocating motion of the connecting rod and the piston, thereby achieving gas compression. The crankshaft has a variety of structural forms, such as single crank and double crank, and is usually cast from aluminum alloy or cast iron, and has heat sinks cast on its surface to help dissipate heat.