Oil Free Piston Air Compressors

WHY ELGi?

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 free of metal debris. The pipes have special e-coating, which ensures consistently clean and oil-free air and optimized rotor clearances that provide consistent air delivery.

REDUCED COST OF OWNERSHIP

The oil-free technology of ELGi air compressors helps optimize the operations by eliminating wasted energy during pressure drops. Apart from reducing operating costs, ELGi compressors are designed for easy maintenance by providing clear access to air components.

DISTINCTIVE DESIGN AND OWNERSHIP OF TECHNOLOGY

ELGi is among the few air compressor companies to design and manufacture oil-free airends. Our compressors are engineered 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 housing and airend rotors come 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.

WORKING PRINCIPLE OF OIL-FREE PISTON AIR COMPRESSORS

Piston air compressors are positive-displacement compressors that use a crankshaft-driven piston and cylinder to compress the air. They rely on the reciprocating action of pistons to compress gas within cylinders and discharge it through a valve. Like a small internal combustion engine, a piston compressor has a crankshaft, a connecting rod and piston, a cylinder and a valve head. The movement of the piston creates a vacuum that sucks in the atmospheric air and then pushes the air to compress it and deliver it through a valve into high-pressure receiving tanks.

ELGi has adapted a dry crankcase that is entirely devoid of oil. The new generation of ELGi compressors significantly reduce operating costs and provides high-quality oil-free air that eliminates the usage of expensive downstream filters

APPLICATIONS OF PISTIONS AIR COMPRESSORS

ELGi offers single-stage oil-free compressors to its customers who need small quantities of oil-free air to work with their sophisticated equipment like dental chairs and laboratory and process equipment, to name a few. We also offer two-stage oil-free compressors for critical medical air and industrial oil-free air needs. Select models are offered with desiccant driers for applications that demand low-pressure dew points.