Oil-lubricated screw compressors GA (VSD⁺)

GA & GA⁺ (5-500 kW)
GA VSD (37 -315 kW)
GA VSD⁺ (7-75 kW)
Our market-leading GA oil-injected rotary screw compressor delivers outstanding performance, high productivity and low cost of ownership – even in the harshest environments.

Air to your needs
Free Air delivery from 8.4-1410 l/s with the highest reliability. Whatever your needs, our GA delivers.


Oil injected screw compressors designed for efficiency
The components of the oil-injected rotary screw compressors have been carefully designed in house. This reduces losses and pressure drop to a minimum, resulting in the highest compressor package efficiency. The air compressor also uses reliable components to guarantee operation in the toughest environments and running conditions. By using our rotary screw technologies you are guaranteed to a reliable and efficient compressor.
Advanced monitoring system

Most production processes create fluctuating levels of demand. This creates energy waste in low air demand periods. Using the Elektronikon® unit controller, you can manually or automatically switch between two different setpoints to optimize energy and reduce cost.

In addition, the sophisticated algorithm runs the drive motor only when needed. As the desired setpoint is maintained while the drive motor’s run time is minimized, energy consumption is kept to a minimum.

Variable Speed Drive

Over 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. The generation of compressed air can account for more than 40% of a plant’s total electricity bill. To cut your energy costs we’ve pioneered in Variable Speed Drive (VSD) Technology in the compressed air industry.

Atlas Copco’s VSD technology closely follows the air demand by automatically adjusting the motor speed. This results in energy savings of up to 35%.

Recover your energy

Our oil injected compressors use an integrated energy recovery system. It recovers up to 78% of the energy from the motor and the element oil circuit. Through efficient usage of the recovered energy, you generate important energy cost savings and a high return on investment.

Monitor your system

It’s important to know the status of your compressed air system. You want to achieve optimal efficiency and maximum availability. With SMARTLINK you can monitor your compressed air installation. Monitoring your system not only saves you money, but also avoids breakdowns and production losses.

Matching your specific requirements
Our GA oil-injected screw compressors bring industry-leading performance, flexible operation and high productivity, reduced enargy costs at a minimal cost of ownership. A wide range of compressors enables you to find the air solution that perfectly matches your specific requirements. Built to perform in even the harshest environments, an Atlas Copco GA keeps your production running efficiently.

Exceptional energy savings
Atlas Copco’s VSD⁺ technology closely follows the air demand by automatically adjusting the motor speed to match the compressed air supply to the demand. Combined with the innovative patented iPM (interior Permanent Magnet) motor (IE4), the GA VSD⁺ achieves average energy savings of 50%. This reduces the total lifecycle costs of the compressor up to 37% on average.

On top of energy savings up to 50% , the GA VSD⁺ realizes a Free Air Delivery (FAD) increase of up to 12% for improved efficiency and performance.

Technical specifications GA series


Capacity FAD l/s 8.4 l/s – 1,410 l/s
Working pressure 7.5 bar(e) – 13 bar(e)
Installed motor power 5 kW – 500 kW
Capacity FAD 30.2 m³/h – 5,076 m³/h



Capacity FAD l/s 8.4 gal/min – 1,410 gal/min
Working pressure 107 psig – 200 psig
Installed motor power 7.5 HP – 700 HP
Capacity FAD 17.7 cfm – 2,988 cfm