Industrial Grade Bubble Air Controller has various features such as reducing air leakage; reduce size variation even through puncture, reducing wastage in production, easy operating, saving time. The Air Controller finds application in extrusion film plant of HM, LD, LLDP, PP and PVC items. The Air Controller is installed near sizer ring of plastic extrusion machine to easy operation. The Industrial Grade Bubble Air Controller has the feature that when film get puncture in bubble size will reduce so bubble air controller is automatic on and flow of air is start and stop when actual size is received.