Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500
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Atlas Copco oil-injected rotary screw air compressor Twin element series for highest efficiency and reliability.
1. Practical cooler cleaning
• Hinged fans, fan motors and cowls for easy cooler cleaning.
• Twin fans for optimal cooling.
• Axial cooling fans driven by separateTEFC electric motors (IP55 protection).
2. Superior air quality
• 3-step efficient oil separation process for low residual oil content in the compressed air (less than 3 ppm).
• Hinged cover for easy separator element change.
3. Protective air filtration
• Protects the compressor components by removing 99.9% of dirt particles down to 3 microns.
• Extends the system lifetime.
4. Moisture separator as standard
A cyclonic moisture separator, with automatic and manual drain, mounted as standard, after the cooler block.
5. Twin element on single drive & gear casing
• Efficiencies far superior to designs using one large element or 2-stages.
• Extended lifetime due to reduced loads on bearings, rotors and gears.
• Highly efficient motor –TEFC protection (IP55), class F insulation.
6. Energy recovery
• The optional energy recovery system can
recover up to 75% of the compressor’s shaft power as hot water.
• The main module of the recovery system is integrated in the compressor.
• Recovered hot water can be used as preheated boiler feed water, space heating, showering or other industrial applications.
7 Elektronikon unit controller
• High resolution color display gives you an easy to understand readout of the equipment’s running conditions.
• Clear icons and intuitive navigation provides you fast access to all of the important settings and data.
• Monitoring of the equipment running conditions and maintenance status.
Optimize your system
With the Atlas Copco air compressor GA 355-500, we provide an all-in-one solution incorporating the latest technology in a built-to-last design. To further optimize the performance of your GA or to simply tailor it to your specific production environment, optional features are available.
Standard scope of supply
Air circuit | Air intake filter |
Air intake valve | |
Air/oil separator | |
Cooling circuit | Aftercooler/oil cooler (air or water-cooled) |
Cooling fan for air-cooled units | |
Ventilation fan for water-cooled units | |
Water separators | |
Oil circuit | Oil filters |
General | Complete air/oil/water circuit |
IP55, Class F drive motor | |
Built-in electrical starters (on low voltage variants) | |
Flexible vibration dampers | |
Elektronikon® control system | |
Full load/no load regulation system | |
Silencing canopy | |
Single point inlet and outlet connections | |
Structural steel skid- no foundations needed | |
SMARTLINK | |
Medium voltage motor | |
NPT or ANSI connections |
Additional features & options
| Energy Recovery (on water-cooled versions only) | Electronic water drain |
| Phase sequence relay | PT1000 thermal protection for main motor |
| Anti-condensate heaters for main motor | Anchor pads |
| Performance test certificate | Witness test |
| Material certificates | Sea worthy packing |
| SPM monitoring | High short circuit current rating (HSCCR) |
| Heavy-duty filter | Medium voltage motor |
GA 355-500 Air Compressor Flow Diagram
● Incoming air ● Outgoing air ● Air/oil mixture ● Water ● Oil
Technical Specifications
Compressor type | Presión máxima de trabajo |
Capacity FAD (1)
| Instal | ed |
Noise level
| Weight (3) | ||||
mot | b F | |||||||||
Pack | ||||||||||
bar(e) | psig | I/s | m3/ min | cfm | kW | dB(A) | kilogramo | lb | ||
50 Hz | ||||||||||
GA355 -7.5 | 7.5 | 109 | 1050 | 63.1 | 2225 | 355 | 73 | 8402 | 18523 | |
GA355-8.5 | 8.5 | 123 | 969 | 58.2 | 2053 | 355 | 73 | 8402 | 18523 | |
GA355-10 | 10 | 145 | 890 | 53.5 | 1886 | 355 | 73 | 8402 | 18523 | |
GA355-13 | 13 | 189 | 731 | 43.9 | 1549 | 355 | 73 | 8402 | 18523 | |
GA400-75 | 7.5 | 109 | 1175 | 70.6 | 2490 | 400 | 74 | 8602 | 18964 | |
GA400-8.5 | 8.5 | 123 | 1109 | 66.6 | 2350 | 400 | 74 | 8602 | 18964 | |
GA400-10 | 10 | 145 | 1011 | 60.8 | 2142 | 400 | 74 | 8602 | 18964 | |
GA400-13 | 13 | 189 | 844 | 50.7 | 1788 | 400 | 74 | 8602 | 18964 | |
GA450-75 | 7.5 | 109 | 1298 | 78.0 | 2750 | 450 | 75 | 8702 | 19185 | |
GA450-8.5 | 8.5 | 123 | 1240 | 74.5 | 2628 | 450 | 75 | 8702 | 19185 | |
GA450-10 | 10 | 145 | 1144 | 68.8 | 2424 | 450 | 75 | 8702 | 19185 | |
GA450-13 | 13 | 189 | 960 | 577 | 2034 | 450 | 75 | 8702 | 19185 | |
GA500-7.5 | 7.5 | 109 | 1410 | 84.7 | 2988 | 500 | 76 | 8202 | 18082 | |
GA 500-8.5 | 8.5 | 123 | 1347 | 80.9 | 2854 | 500 | 76 | 8202 | 18082 | |
GA500-10 | 10 | 145 | 1257 | 75.5 | 2664 | 500 | 76 | 8202 | 18082 | |
GA 500- 13 | 13 | 189 | 1068 | 64.2 | 2263 | 500 | 76 | 8202 | 18082 | |
GA 500 figures are for medium voltage IP 23 motor.
Reference conditions:
Absolute inlet pressure 1 bar (14.5 psi)
Intake air temperature 20°C (68°F)
Cooling medium temperature 20°C (68°F)
(1) Unit performance measure according to ISO 1217, Annex C, Edition 4 (2009), FAD is measured at the following working pressures:
• 7.5 bar variants at 7 bar
• 8.5 bar variants at 8 bar
• 10 bar variants at 9.5 bar
• 13 bar variants at 12.5 bar
(2) Noise level
A-weighted emission sound pressure level at the work
station, Lp WSA (re 20 μPa) dB (with uncertainty 3 dB).
Values determined according to noise level test code ISO 2151 and noise measurement standard ISO 9614.
(3) Water-cooled models
A = air-cooled LV = low voltage
W = water-cooled MV = medium voltage
Compressor
| L | W | H | |||
mm | inch | mm | inch | mm | inch | |
GA 355-500 A (LV and MV-IP23) | 5855 | 230.5 | 2120 | 83.5 | 2500 | 98.4 |
GA 355-500 A (MV-IP55) | 6055 | 238.4 | 2120 | 83.5 | 2500 | 98.4 |
GA 355-500W(LV and MV-IP23) | 4000 | 157.5 | 2120 | 83.5 | 2500 | 98.4 |
GA 355-500 W (MV-IP55) | 4200 | 165.4 | 2120 | 83.5 | 2500 | 98.4 |
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