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Screw Compressors

Screw compressor is a type of rotary compressor that compresses air by screw action. The most important component of the screw compressor is two screw-like rotating elements. The twin screw consists of male and female rotors that rotate in opposite directions while the volume between them, as well as between the screw and the casing, decreases.

Screw compressor or rotary screw compressor finds wide use in industrial units all across the country. We take immense pride in our high quality screw compressors that form one of our best-selling and most popular product offering. They are especially suitable if you need 100% continuous duty cycle with non-stop compressed air flow. Our quality screw compressors are long-lasting, durable and strong. Air-marshal screw compressors can be customized and adapted to your specific needs.

Screw Compressor

Model No. Power KW/HP Pressure KG/CM2 Free Air Delivery (CFM) Air Connection
GCS 05 3.7 / 5 7.5 / 10 / 13 19 / 17 / 15 1 / 2"
GCS 7.5 5.5 / 7.5 7.5 / 10 / 13 29 / 26 / 23 1 / 2"
GCS 10 7.5 / 10 7.5 / 10 / 13 40 / 35 / 30 3 / 4"
GCS 15 11 / 15 7.5 / 10 / 13 60 / 52 / 45 3 / 4"
GCS 20 15 / 20 7.5 /10 / 13 81 / 74 / 67 1"
GCS 25 18.5 / 25 7.5 / 10 / 13 108 / 87 / 73 1"
GCS 30 22 / 30 7.5 / 10 / 13 126 / 105 / 91 1"
GCS 40 30 / 40 7.5 / 10 / 13 170 / 150 /140 1.1/4"
GCS 50 37 / 50 7.5 / 10 / 13 217 / 195 / 70 1.1/4"
GCS 60 45 / 60 7.5 / 10 / 13 252 / 220 / 190 1.1/4"
GCS 75 55 / 75 7.5 / 10 / 13 336 / 283 / 245 1.1/2"
GCS 100 75 / 100 7.5 / 10 / 13 434 / 378 / 315 1.1/2"
GCS 125 90 / 125 7.5 / 10 / 13 577 / 442 / 385 2"
GCS 150 110 / 150 7.5 / 10 / 13 700 / 605 / 530 2"
GCS 180 132 / 180 7.5 / 10 / 13 812 / 717 / 577 2.1/2"
GCS 220 160 / 220 7.5 / 10 / 13 959 / 840 / 700 3"
GCS 270 200 / 270 7.5 / 10 1270 / 996 3"
GCS 340 250 / 340 7.5 / 10 1540 / 1305 4"
GCS 430 315 / 430 7.5 /10 1837 / 1592 5"

Key Benefits

  • Continuous duty cycle is possible because cooling takes place inside compressor
  • Routine maintenance is low cost
  • Rotary screw air end is the most expensive component and needs to be replaced only once in 10 years

With Air Dryer

It is possible to attach air dryer to screw compressor, and this integration allows it to be used in varied applications which require clean and dry air.


Tank Mounted Series

Screw compressors of smaller size can be mounted on tanks that offer additional storage capacity and can be used in plug and play applications. These screw compressors are suitable if you have limited space at your facility, but require good storage capacity along with air dryer function.


Variable Speed Drive

Air-marshal Variable Speed Drive compressors suit industrial facilities where there is fluctuation in demand for compressed air flow. Examples include industrial units that function in shifts and have varying cycles of activity. We are proud of our Variable Speed Drive (VSD) screw compressors that are widely preferred due to the excellent savings they provide in terms of low power consumption. This could very well translate into annual savings of several thousand dollars. The compressors have powerful sensors that detect the drop in demand, and adjust motor and elements speed accordingly. This reduces compressed air supply and adjusts output to meet demand. VSD helps avoid unnecessary waste of electricity, keeps your operations environment-friendly and sustainable, and saves cost.


Benefits of VSD

  • About 80% of a compressor’s operating cost is energy consumption, with VSD you can achieve up to 35% of operating cost in energy savings
  • Lower system pressure is possible when compressed air demand is down
  • Flexible pressure selection where it is possible to start/stop without having to unload
  • No idling time or energy wasted
  • Low system pressure avoids leakages

Our VSD screw compressors have gained in popularity due to the savings they offer business owners who operate small and medium size industrial units.