Oil-Free Compressor Retrofit for Food & Beverage Filling Lines in the Pearl River Delta

Background: Compressed air directly touches blow-molding, filling and air-drying in a beverage filling workshop and must be oil-free. Original units had oil-contamination risk and large pressure fluctuation affecting filling accuracy and packaging quality, with high energy consumption.

Solution: Converted to an oil-free screw compressor central air-supply system reaching Class0 cleanliness. Adsorption dryers and high-efficiency filters stabilize dew point. Buffer tanks smooth instantaneous consumption peaks. IoT platform monitors pressure, dew point and operating status.

Results: Oil-contamination risk for food-contact air fully eliminated with improved filling quality. Narrower pressure fluctuation raises blow-molding and filling yield. Power saving of about 20% with lower maintenance frequency, meeting the food industry's hygiene and low-carbon standards.