WORKING PRINCIPLE OF OIL-FREE AIR COMPRESSORS
Many industrial applications require compressed air for cooling, welding, operating pneumatic tools and machinery, or simply blowing away dust. Oil-free air compressors, also known as rotary screw air compressors, generate high-pressure air without adding lubricants. Instead of a piston moving up and down, a rotary screw air compressor has two helical screws and a rotor that moves back and forth inside a vacuum chamber.
ADVANTAGES OF USING OIL-FREE AIR COMPRESSORS
The oil-less compressors significantly reduce maintenance costs and downtime of the machinery. This allows for higher operational efficiencies, decreased energy consumption, longer machine lifetimes, and improved product quality. Oil-less air compressors bring environmentally-friendly advantages. The absence of moving parts in the oil-free air compressor ensures no emission of greenhouse gases or fumes into surrounding areas. This enhances workplace safety by eliminating hazardous gas emissions and the need to change lubrication fluid and filter.
INDUSTRIES THAT USE OIL-FREE AIR COMPRESSORS
Oil-free air compressors are used in several industries. The oil-less compressors are used for material handling, lifting, and moving heavy materials on construction sites or factory floors in the construction industry. In the chemical industry, Oil-less compressors help transport hazardous chemicals safely and quickly from one place to another. The oil-free air compressors are also used in food, beverage, and textile industries that cannot tolerate any contamination caused by oil or other sources.
CLASS 0 OIL FREE AIR SOLUTION
ELGi’s oil-free air compressors provide compatible oil-free compressed air that meets the ISO8573-1 class 0 oil standards. The air comes in direct contact with the metal surface inside the compressor coated with food-grade material, ensuring consistent oil-free air without metal debris. Our pipes have special e-coating that ensures consistently clean and oil-free air and optimized rotor clearances that provide consistent air delivery.
REDUCED COST OF OWNERSHIP
ELGi air compressor’s oil-free technology optimizes productivity and eliminates the energy wasted during pressure drops. They reduce operating costs, provide clear access to air components, and are designed for easy maintenance.
DISTINCTIVE DESIGN AND OWNERSHIP OF TECHNOLOGY
ELGi is among the few air compressor companies to design and manufacture oil-free airends. ELGi air compressors are designed to deliver maximum uptime and reliability with our in-house oil-free technology. ELGi’s unique eta-V rotor design reduces pressure losses and increases stage efficiencies, leading to an optimized 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.