Elgi has been constantly upgrading the design and manufacture of airends, under a joint technology agreement with the Centre for Positive Displacement Compressors at City University, London. Currently, ELGI airends are among the most reliable and energy-efficient in the world.

A new generation capacity control system is installed at the compressor inlet. The energy-efficient 'Varion' intake valve optimally controls the compressor capacity during start-up, normal operation and shutdown.

Horizon's direct drive ensures efficeint power transmission and constant FAD for its life. Unlike belt-driven screw compressors, there is no power loss and belt slippage. The drive is maintenance-free for life.

Over the years, ELGI has perfected the 'OSBID' process (Oil Separatio By Impact and Deceleration) which enables efficient separation of air and oil, with minimum pressure drop. This process results in consistent quality of air, specifically during the working cycle and uploading. The oil carry-over level is consistently less than 2 ppm with the OSBID process. ELGI guarantees* the OSBID process for the life of the compressors

Bulk water remains in compressed air at varying levels, depending on the humidity level of inlet air. This bulk water causes corrosion of piping, end tools, machinery and valves. every HORIZON series air compressor has a custom-designed centrifugal type moisture separator with an automatic drain at the outlet of the after cooler. This comes as a part of the package at no extra cost, and removes over 99% of bulk water from the compressed air, resulting in corrosion free, longer life of end use equipments and less load on the dryer.