The diaphragm operate mainly through the reciprocating action of the diaphragm wherein the cavities generated and closed in a regular manner and while the cavity is generated the air from the inet ports and gets into the cavity and as the reverse position occurs the pulled air is thrown out from the exhaust ports.

The cam is fitted to the integral electric motor Shaft which enables a reciprocating action for the diaphragm connected to it since the operation does not involve any presence of oil water or any chemical the output is totally contaminant free and hence is very versatile product for the laboratory applications.