GA 5 – 11 (kw) Compressors

Atlas Copco GA 5 - 11 (kw) Compressors

GA 5-11 kw Oil Injected Roatary Screw Compressors

The GA5-11 is an oil injected rotary screw air compressor, available in 5kW, 7kW and 11kW, provide an energy efficient, reliable workplace air compressor that minimizes the total cost of ownership. A range of air compressors are designed to withstand the harshest of environments while providing you with a quiet air compressor with sound levels ranging between 60 and 62 dB(A). Atlas Copco’s GA5-11 series is designed and manufactured in accordance with ISO 9001, ISO 14001 and ISO 1217 which insures a reliable trouble free air compressor. Additionally, these units boast a very compact footprint and utilize the next generation Elektronikon® controller that offers you a great variety of control and monitoring features. This allows you to increase a compressor’s efficiency and reliability. As standard these units are designed to operate in 46°C/115°F ambient conditions and are available as a stand-alone compressor (Pack) or including an integrated dryer (Full Feature).

Atlas Copco GA5-11 air compressors – available in 5kW, 7kW and 11kW variants with flows ranging from 8.4 to 30.7 l/s (24.7 to 54.8 cfm).

The Pack (stand alone) compressors are constructed with the following major components:

  • State of the art compression element.
  • IP55 (TEFC) motor meeting or exceeding IEEE and NEMA Premium efficiency standards with greased for life bearings.
  • Elektronikon® controller.
  • High efficiency aftercooler.
  • Moisture separator.
  • Inlet air filter.

Additionally. the Full Feature (ff) model includes an integrated refrigerated air dryer using environmentally friendly R134a refrigerant

Compressor Working Principle:

1.1 Air / Oil Flow

Air is drawn in through the air filter and the inlet valve into the compression element. This compressed air is forced through the air/oil separator, past the minimum pressure valve and into the after-cooler through the water separator to the discharge. In the case of a Full Feature unit the air will then circulate through the refrigerated dryer and then to the discharge.

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1.2 Cooling Systemair compressor

After the cooler an integrated water separator is installed, for a supply of cool compressed air free of liquid condensate to protect your production system.

1.3 Oil Separator System, Oil Filter and Consumables

High efficiency 2 step air oil separator system for reduced oil consumption ensair compressoruring low maintenance costs and good oil sepatarion result in between 2 service intervals.


The oil filter cleans the oil continuously from particles bigger than 25 micron with 99% efficiency in order to protect the lubrication quality and health of the rotating components.

1.4 Electrical/Control System

Reduced cubicle temperatures, by forced air ventilation through the cubicle, compressed air solutionsdoubles the lifetime of the electrical components and keeps the unit up and running even in the harshest conditions. Standard all units run without de-rating up to 46°C. Optionally high ambient versions are available for 50°C, on FF variants, and 55°C pack variants.

1.5 Air Dryer (Full-Feature models)

The integrated dryer efficiently removes moisture, aerosols and dirt particles to compressed air solutionsprotect your investment. This quality air expands the life of equipment, increasing efficiency and ensuring quality in your final product.


Pressure dew point at 3°C /37°F at maximum FAD. (100% relative humidity at 20°C/68°F)


Can be outfitted with optional DD and PD filters, allowing you to obtain the exact air quality you need for your specific application.


Elektronikon® MK5 regulator and control panel Display

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The Elektronikon® standard is offered as standard for the GA 5-11 for fixed speed compressors with online visualization. Elektronikon® standard controls and monitors the key compressor parameters efficiently as stated below.

GA 5-11 compressors are equipped with the power conscious, efficient, automatic full-load / no-load regulation system. The Elektronikon® regulation is equipped with the delayed second stop feature (DSS) for the main motor which significantly cuts the electricity cost.

This regulating system includes the Elektronikon® Standard module to regulate, control and monitor compressor operation. All GA 5-11 series Elektronikon® control modules display and monitor the following:

1. Compressor Status Indication

Voltage on.
Compressor loaded.
Compressor unloaded.
Compressor maximum allowed unloading pressure.
Automatic operation.
General warning/alarm.
Service required.

2. Temperature, numerical readouts

Temperature of Delivery air.
Ambient air temperature.

3. Pressure, numerical readouts

Delivery air.

4. Compressor Control

Start / Stop.
Emergency stop.
Reset / Test.

5. Hour meters

Total running hours.
Total loading hours.

6. Service requirement indications

Air filter.
Oil filter.
Oil lifetime.
Oil separator.

7. Compressor safety – warning indications

Dewpoint High temperature (Dryer).
Sensor error.

8. Compressor safety – shutdown indications

High element outlet temp.
Drive motor/fan motor overload.
Emergency stop.

9. Digital output relays for remote monitoring (voltage free)

Remote start and stop.

10. Optional upgradable to Elektronikon® Touch without rewiring.

11. SMARTLINK: Data Monitoring Program

Remote monitoring system that helps you optimize your compressed air system and save energy and costs.
Provides a complete insight in your compressed air network.
Anticipates on potential problems by warning you up-front.


Energy Savings

State of the Art compression element
– Low energy consumption and high output of compressed air.
Integrated Dryer with Saver cycle technology

– Reduces the energy consumption of the integrated air treatment in light load
conditions. Water separation is improved. Pressure Dew Point (PDP) becomes more stable.
Fully Integrated & Compact design
– Controller to ensure optimum efficiency and reliability. Ensures compliance with your air requirements and makes the best use of your valuable floor space.

Quiet operation

Sound insulated canopy
– No separate compressor room required. Allows for installation in most working environments.

Highest Reliability

Robust Air Filter
– Offers long lifetime and high reliability for long service intervals and low maintenance needs. Air filter is very easy to replace.
IP55 (TEFC) IE3 Motor
– Totally enclosed fan cooled motor insures reliability. Efficiency ratings at or above premium regulations.

Our work is guaranteed and customer service is always of the highest standard; why not try us today?