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PET Blowing Oil-Free Air Compressor
A 40 Bar oil-free air compressor for PET blowing is a high-pressure, lubrication-free compression system specifically designed to supply clean, oil-free air at 40 bar (580 psi) for PET bottle blow molding processes. Unlike traditional oil-lubricated compressors, it uses advanced materials (such as PTFE rings or water injection) to eliminate oil contamination risk, ensuring 100% oil-free air that meets strict food-grade and pharmaceutical standards. This type of compressor is ideal for producing high-quality PET bottles for beverages, cosmetics, and medical containers, where purity and consistent pressure are critical.
Key Advantages of Rocky Compressors Compared to AF Models
1. Comparable Running Stability
Rocky provides running stability very similar to AF, making it well suited for round‑the‑clock PET blow molding operations.
2. Reduced Maintenance Expenses
Due to its smart design, Rocky notably lowers the cost of maintaining accessories and replacement parts.
3. Improved Energy Performance
Equipped with advanced VFD technology, Rocky consumes considerably less energy — typically 25–40% less than traditional fixed‑speed units.
4. Enhanced Overall Cost Advantage
Quicker delivery, flexible OEM supply arrangements, and a lower total cost of ownership (TCO) position Rocky as a strong, economical alternative to AF.
Product Parameters
| Model | Air delivery (m³/min) | Working Pressure (Mpa) | Motor Power (kW) | Speed (RPM) | Dimensions (mm) | Weight （kg） |
| RKL-8.5/40 | 8.5 | 4.0 | 90 | 450 | 4050x1750x2380 | 5500 |
| RKL-10/40 | 10 | 4.0 | 110 | 500 | 4050x1750×2380 | 5800 |
| RKL-12/40 | 12 | 4.0 | 132 | 580 | 4050x1750×2380 | 6000 |
| RKL-16/40 | 16 | 4.0 | 160 | 390 | 4650x2200x2780 | 7400 |
| RKL-18/40 | 18 | 4.0 | 185 | 440 | 4650x2200×2780 | 7600 |
| RKL-20/40 | 20 | 4.0 | 200 | 470 | 4650x2200×2780 | 7800 |
| RKL-22/40 | 22 | 4.0 | 220 | 500 | 4650×2200×2780 | 8000 |
Application Industries for 40 Bar Oil-Free PET Blowing Air Compressors
Beverage Industry
Production of PET bottles for carbonated soft drinks, water, juices, teas, and sports drinks.
Food Industry
Manufacturing of food-grade PET containers for edible oils, sauces, condiments, and dry foods.
Cosmetics & Personal Care
Blowing of PET bottles and jars for shampoos, lotions, creams, perfumes, and other beauty products.
Pharmaceutical Industry
Production of sterile, high-purity PET containers for medicines, syrups, and health supplements.
Household Chemicals
Manufacturing of PET packaging for detergents, cleaning agents, and liquid soaps.
Automotive Care Products
PET bottles for car wash liquids, waxes, and automotive cleaning agents.
Industrial & Technical Parts
Blow molding of technical hollow components made from PET or similar polymers.
Recycled PET (rPET) Bottle Manufacturing
Eco-friendly bottle production using recycled PET materials.
