Description
Oil-free screw compressors are designed for industrial and medical processes where absolute air purity is critically important and oil contamination in compressed air is strictly prohibited.
How does an oil-free screw compressor work?
An oil-free screw compressor operates with the help of two rotors (screw-shaped elements) rotating in opposite directions. The rotors are synchronized by an external gear mechanism, ensuring they do not collide and no direct friction occurs between them. Given this, lubrication is not required in the compression chamber. Consequently, no oil is used, which completely eliminates the risk of contamination.
The equipment provides safe and environmentally friendly air, which is crucial for quality and regulatory compliance (full compliance with GMP, FDA, and ISO standards).
Types of Oil-Free Compressors:
- Screw type — described on this page
- Oil-Free Scroll Compressors
- Turbo Oil-Free Compressors
Why Oil-Free Screw Compressors?
One of the main reasons to choose this technology is their ability to eliminate any risk of oil contamination. In a typical oil-lubricated compressor, oil is used to lubricate, cool, and seal components during the compression process. While various filtration techniques can remove most of the oil, traces often remain. For many industries, this is acceptable. However, for sectors such as food, beverage, electronics, and pharmaceutical industries, even the slightest contamination can be detrimental.
Which industries need Class 0 air?
Food and beverage packaging, dairies and breweries, pharmaceutical and cosmetic production, hospitals and laboratories, electronics and semiconductor plants, textile finishing and paint shops all specify ISO 8573-1 Class 0 air, because a single trace of oil can spoil a batch, contaminate a product or void a certification. When you compare offers, look beyond the purchase price: energy is typically 70–80% of the lifetime cost of a compressor, so the specific power (kW per m³/min) at your real load profile, the service intervals and the availability of parts and technicians in Georgia decide the true cost of ownership.
IESCO offers:
🔹 ALMiG LENTO series (Germany)
🔹 Renner RSW series, water-injected
🔹 Ingersoll Rand NIRVANA series
Do you want to choose a compressor precisely tailored to your needs?
📞 Contact us: 032 206 01 00 or visit the IESCO showroom to see the models available on-site.
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