Oil-free Air Compressors

WHY CHOOSE AN OIL-FREE AIR COMPRESSOR?

For businesses and applications that need clean, oil-free air, selecting an ELGi oil-free air compressor can be prudent since it removes the risk of oil contamination, lowers maintenance costs, and supports environmental sustainability by limiting the release of oil particles into the atmosphere. Additionally, it guarantees a healthier and safer working environment and benefits from energy efficiency. It is well-suited for small spaces thanks to its smaller footprint, compared to a larger piston air compressor, making it a viable option for a variety of specialised applications where the benefits of oil-free operation outweigh the potential drawbacks.

CLASS 0 OIL-FREE AIR SOLUTION

ELGi’s oil-free air compressors provide consistent oil-free compressed air that meets the ISO8573-1 class 0 oil standards. The part where the air comes in direct contact with the metal surface inside the compressor is coated with food-grade material, ensuring consistent oil-free air without metal debris. Our pipes have special e-coating which ensures consistently clean and oil-free air and optimized rotor clearances which ensures consistent air delivery.

REDUCED COST OF OWNERSHIP

ELGi’s oil-free air technology helps to optimise the productivity of your operations by eliminating the energy wasted during pressure drops. Apart from reducing operating costs, our compressors are also designed for easy maintenance by providing clear access to air components.

DISTINCTIVE DESIGN AND OWNERSHIP OF TECHNOLOGY

ELGi is among the very few air compressor companies to design and manufacture oil-free airends. With our in-house oil-free technology, the compressors are engineered to deliver maximum uptime and reliability. ELGi’s unique eta-V rotor design reduces pressure losses and increases stage efficiencies, leading to an optimised compressed air system.

HIGHEST EFFICIENCY AND RELIABILITY

ELGi’s airend rotors and housing are coated with PTFE-based food-grade PP coating to resist corrosion and endure high temperatures up to 250°C. This results in optimum long-term performance with no loss in efficiency.

INDUSTRIAL APPLICATIONS OF OIL-FREE COMPRESSORS

Many industries utilise oil-free air compressors because the presence of oil might have a negative impact on processes or final products. The following are six industrial uses for oil-free compressors:

Food and beverage: Oil-free compressors are key in the food and beverage sector, where it’s critical to maintain the greatest level of product purity. They provide compressed air for food processing, bottling, and packing, preventing oil contamination of the finished goods.

Pharmaceuticals: Keeping a sterile atmosphere is essential for biotech and pharmaceutical manufacturing operations. Oil-free compressors deliver clean and contaminant-free compressed air for uses including aeration, fermentation, and drying of delicate products.

Electronics: The production of delicate electronic components in the electronics sector requires oil-free compressors for applications, including chip manufacture, clean room operations, and air supply. Electronic devices may develop flaws or malfunction as a result of oil pollution.

Automotive industry: Oilless air compressors are widely utilised in the painting and finishing steps of the automotive industry. They provide clean compressed air, for spray painting operation preventing oil particles from degrading the paint’s quality or sticking to the car’s surface.

Medical and dentistry applications: Oil-free screw compressors are used in medical and dental settings for a various activities, including running dental equipment and respiratory support systems with sterile, dry, and clean pressurised air.

Textile: The textile industry uses oil-free compressors for applications like air jet weaving, air blowing, and cleaning fibres. The absence of oil in the compressed air ensures the fabric quality remains uncompromised.

CLASS 0 OIL-FREE AIR SOLUTION

One of the key reasons to choose ELGi’s oil-free compressors is their ISO 8573-1 CLASS 0 certification. This certification sets the highest standard for air purity, ensuring that the compressed air produced by ELGi oil-free air compressors is free from any traces of oil. This is especially critical for pharmaceuticals, food and beverage, electronics, and healthcare industries where the slightest contamination could have severe consequences. The class zero air compressor sets the standard for exceptional performance, guaranteeing top-notch efficiency, reliability, and quality. ELGi demonstrates its commitment to delivering safe and pure oil free compressed air. Our Oil-free air compressors offer consistent oil-free air meeting ISO8573-1 class 0 oil standards. Food-grade coating is done where air contacts the metal surface inside the compressor, ensuring consistent oil-free air without metal debris. In addition, pipes with special e-coating and optimised rotor clearances provide consistent, clean, oil-free air delivery.”

Rotary Screw vs. Reciprocating Air Compressors

Rotary screw compressors and reciprocating compressors are the two most commonly used types of air compressors.

Evolution of Screw Air Compressors

The concept of air compressors dates back thousands of years.

Frequently asked questions while selecting an oil-free air compressor

ELGi has been delivering an extensive range of compressed air solutions for over six decades that adhere to the rigorous Class 0 standards for oil-free air.

Understanding Screw Air Compressors

When selecting a suitable air compressor for your business, a few factors must be considered beyond the cost.

FREQUENTLY ASKED QUESTIONS (FAQs)

What are the advantages of using water-injected air compressors in various applications?

In the case of water-injected air compressors, the heat dissipation is managed through a closed-loop water cooling system. This eliminates the need for lubricating oil, which is hazardous for the environment if disposed of after its duty cycle. Absence of oil ensures a 100% oil free compressed air at the discharge outlet.

What are oil-free air compressors, and how do they differ from oil-lubricated models?

Oil-free air compressors do not require lubricating oil in their compression chambers, making them ideal for applications that require clean and oil-free air, such as medical equipment and food processing. This is due to a special coating which helps dissipate heat and provide a thin layer of lubrication without the need oil media. In contrast, oil-lubricated compressor models use oil to lubricate moving parts, which may introduce oil particles into the compressed air, limiting their use in certain sensitive environments.

What industries commonly use oil-free screw compressors?

Industries that commonly use oil-free screw compressors include pharmaceuticals, food and beverage, electronics, and textile applications, where compressed air must be free of oil contaminants.