A blowing cylinder consists of a cast-iron cylinder fitted with a piston receiving a reciprocating motion from the crank-shaft of the engine.
In addition to this, for low pressures and large volumes of blast, fans and blowers are largely used.  A blowing cylinder consists of a cast-iron cylinder fitted with a piston receiving a reciprocating motion from the crank-shaft of the engine.  At every stroke air is drawn into the cylinder on one side, and on the other compressed air is forced into a reservoir or into the blast-main.