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Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500 1

Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500 2

Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500

GA 355-500 (355-500 kW / 450-700 hp)

Atlas Copco Oil-injected rotary screw air compressors GA355 GA400 GA450 GA500 series, the air compressor can supply high-quality compressed air even under severe working conditions. The air compressor adopts Atlas Copco oil injection screw air end, which can achieve stable operation and long service life while maintaining low cost. In addition, our preventive maintenance policy ensures that your air compressor can achieve long-term uninterrupted operation for several years.

Application:

● Metal industry

● Mining industry

● Power plants

● General industry

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2935036820 GA 355-500 leaflet EN Antwerp_LR

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Atlas Copco air cooled pack oil injected screw com (3)

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Application

Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500 6

Metal industry

QUALITY AND EFFICIENCY

Metal plants use Atlas Copco compressed air for instrumentation, plant air and pneumatic conveying for raw materials or ashand are in need of an efficient solution to reduce their operating costs. Thanks to their innovative features, our Atlas Copco GA355-500 air compressors meet this demand.

Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500 7

Mining industry

ROBUSTNESS AND RELIABILITY

Compressed air is vital for the mining industry: applications include dust bad filtration, service air, ventilation air and pneumatic tools. The reliability and robustness of Atlas CopcoGA compressors will accomplish the job even in the harshest conditions.

Atlas Copco air cooled pack oil injected screw compressor GA 355 GA400 GA450 GA500 8

Power plants

SMOOTH AND COST-EFFECTIVE OPERATION

Power plants run round-the-clock to supply vital energy. A continuous supply of compressed air is absolutely critical for trouble-free operation. GA air compressors provide a reliable source of compressed air of applications such as silt blowing and fly ash handling.

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General industry

A SAFE AND RELIABLE POWER SOURCE

Many industrial companies use compressed air in their daily operations. Applications include pneumatic tools for cutting, drilling, hammering and grinding, pneumatic actuators and valves, ventilation systems, packing and palleting machinery and conveyer systems. GA compressors are designed for ultimate performance and reliability.

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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.

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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	Maximum working pressure		Capacity FAD (1) Pack			Instal	ed	Noise level (2), (3)	Weight (3)
	Maximum working pressure					mot	b F
	Pack					mot	b F
	bar(e)	psig	I/s	m3/ min	cfm	kW		dB(A)	kg	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 type	L		W		H
Compressor type	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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● Focused on compressed air systems for 25 years