Rotary Compressors by ELGi

A rotary compressor is a positive displacement compression system that includes a pair of matching helical screws. An oil-flooded rotary screw compressor includes a lubricant that fills the gap between the rotors, which creates an air-tight hydraulic seal and transfers mechanical energy between the two rotors. The air moves through the threads as the screws rotate, and the meshing screws force the air through the compressor.

Reliable, energy-efficient, and designed for light to heavy-duty processes.

EN Series Rotary Screw Air Compressor

ELGi’s EN series screw air compressors are known for their reliability, low maintenance requirements and small footprint which make them ideal for industrial applications where size, efficiency and cost matter.


  • Best-in-class reliability
  • Compact and elegant design
  • Energy-efficient, encapsulated airends
  • Best-in-class maintenance and operating cost
  • Efficient air-oil separation
  • Optional variable speed drives for energy efficiency
  • Indigenously designed Neuron control system offering operating data and safety measures
  • Highly efficient belt drive transmission


    • Textiles
    • Food Processing
    • Paper
    • Automotive
    • CNC Machining
    • Cutting Tools
EQ 25-30hp Rotary Compressors

EQ Series Rotary Screw Air Compressor

The EQ Series air compressors excel in the most demanding and challenging conditions, providing maximum uptime and extended life. When you need a reliable compressor that won’t break the bank, the EQ Series is your ideal choice.


  • Enhanced Efficiency with Optimized Normally Close (NC) Intake Valve
  • Optimize Energy Usage with Optional VFD
  • Simplified Operation with Industry-Grade Controller
  • Low Oil Carryover
  • Efficient Cooling for Optimal Performance
  • Advanced Neuron XT Controller


  • Motor Power: 25-30hp
  • Working Pressure: 100-175 PSI
  • Airflow: 111-134 CFM


    • Manufacturing
    • Woodworking
    • Metalworking
    • Vehicle Service Center

EG Series Rotary Screw Air Compressor

ELGi’s EG series compressors represent a giant leap in design and performance, with every single component designed for reliability and ease of maintenance. Each compressor is designed and manufactured in compliance with applicable standards (CE, ASME and UL)


  • Best-in-class energy efficiency
  • Best-in-class maintenance and operating cost
  • Lowest oil carryover in the industry
  • Best-in-class warranty program
  • Outstanding reliability stemming from slow operating speeds and low operating temperatures
  • Operating data and safety measures
  • Optional variable speed drives for energy efficiency


    • Aerospace
    • Food processing
    • Automotive
    • Defense
    • Sandblasting
    • Textiles



Rotary Screw Compressor Troubleshooting Guide

Run more efficiently with this quick reference guide that covers issues such as:

  • Low pressure
  • Excessive vibration
  • Low oil pressure
  • Overheating
  • Excessive oil consumption
  • Excessive current draw
  • Failure to start or motor stalls