... compressor sets includes: 2 high pressure compressor, 1 blow compressor, 3 air filters, 1 air cooling dryer ... atmosphere to the required pressure, in order to blow up the preform into request bottle shape. 3. Low ... movement. 4. Air filter Is to clear up the impurities out of the compressed air, like ... full automatic, 2 or more than 2 cavity blow molding machine, because these machine consumption more air, ...