Atlas Copco
Oil-injected Rotary Screw Compressors
Variable Speed Drive+ (7-37 kW/10-50 hp)

Extreme savings

No idling time

Silent operation

Small footprint
The new revolutionary
compressor from Atlas Copco
With its innovative vertical design, Atlas Copco’s GA 7-37 VSD+ brings a game-changing revolution in the compressor industry.
It offers Variable Speed Drive as standard, a compact motor and footprint thanks to its in-house design and iPM (Permanent
Magnet) technology. The GA 7-37 VSD+ reduces energy consumption by on average 50%, with uptimes assured even in the
harshest operational conditions. The GA 7-37 VSD+ is the air compressor of the future, designed in-house by Atlas Copco.
It will set a new standard for years to come, positioning Atlas Copco as a leader in the compressed air industry.
Efficient
On average 20% lower Specific Energy Requirement (SER) than the current GA VSD
models. Eco-efficient VSD+ reduces energy consumption by on average 50% compared
to the current idling models.

On top of energy savings, Free Air Delivery (FAD) increase of up to 12% over the range.

Efficient fan motor (ERP 2015) reduces electricity consumption and noise levels.

Highest motor efficiency (iPM), up to 96.8%, outperforming IE3 efficiency levels.

Reliable
Low maintenance: fewer components, increased uptime.

Worry-free: the GA 7-37 VSD+ has been extensively field-tested over three years.

Based on unique combination of proven technologies and existing components,
optimally brought together by Atlas Copco’s unique experience and know-how.

Smart
Elegant and revolutionary design.

Frequency-controlled operation as standard (VSD+), integrated dryer available.

Fewer components & few options: impressive list of standard features.

Ecological design, efficient material usage.

Small compressor,
big ideas
Innovative
vertical design
Atlas Copco has turned the compressed air industry
on its head by redesigning the conventional layout
of a typical air compressor. Instead of the normal
space-taking horizontal design, the new GA 7-37
VSD+ has an upright, vertical, low footprint layout.
This saves valuable floor and work space, eases
maintenance access, accelerates manufacturing
time, and reduces the total cost of ownership for
all customers.
CompacT
Extremely small footprint.

Clever design allows the GA 7-37 VSD+ to be
placed against a wall.

Robust: motor is oil-cooled; element rotor and
motor have the same axis.

Drive train: direct connection between element
and motor.

Very low noise level, with separate compartments
for drive train and cooling.

Inside the innovative GA 7-37 VSD+
The GA 7-37 VSD+ is packed with innovative features that increase its efficiency, cut its energy consumption, lower its
noise levels, and reduce its operating costs. In addition, it meets or even exceeds all currently applicable standards.
4
ed
patent
drive train
7
1
Interior Permanent Magnet
(IPM) motor
Very high efficiency: exceeds IE3; 96.8%.

Compact, customized design for optimal
cooling by oil.

Designed in-house in Belgium.

IP66 vs. IP55.
1

No cooling air flow required.

Oil-lubricated motor bearing:
no (re)grease(ing), increased uptime.

3
8
2
2
Element
Made by Atlas Copco.

Robust and silent.

3
Direct drive
Vertical design, fewer parts.

Oil-cooled, pressure-tight.

No gears or belts, no shaft seal.

Compact: footprint down 60%.

4
Innovative fan
Based on the newest
technologies.

In compliance with
ERP2015 efficiency.

Low noise levels.

5
Robust oil filter/separator
Integrated bypass valve with the oil filter.

Easy maintenance.

6
4
6
Electronic no-loss
water drain
Included as standard.

Efficient removal of condensate
without loss of compressed air.

Manual integrated bypass for
effective condensate removal
in case of power failure.

5
7
Elektronikon® controller
Integrated smart algorithms reduce
system pressure and energy consumption.

Warning indications, maintenance
scheduling and online status visualization.

Graphic display of key parameters (day,
week, month) and 32 language settings.

9
8
Inlet valve
9
No inlet arrestor.

VSD cubicle
+
VSD superior to idling machines.

+
Electrical components remain cool, enhancing lifetime of components.

Dedicated drive for iPM technology motors.

5% DC choke as standard.

Heat dissipation of inverter in separate compartment.

No blow off losses.

Maintenance free.

Atlas Copco’s GA Variable Speed Drive+ (VSD+) technology closely follows the air demand by automatically adjusting the
motor speed. Combined with the innovative design of the iPM (Permanent Magnet) motor, this results in average energy
savings of 50% and an average cut of 37% in the lifecycle cost of a compressor. VSD+ works with permanent, in-house
designed magnet motors.
Why Atlas Copco Variable Speed Drive+ technology?
On average 50% energy savings with an
extensive flow range (20-100%).

Integrated Elektronikon® Graphic controller
controls the motor speed and high efficiency
frequency inverter.

No wasted idling times or blow-off losses
during operation.

Compressor can start/stop under full system pressure
without the need to unload with special VSD+ motor.

Eliminates peak current penalty during start-up.

Minimizes system leakage due to a lower
system pressure.

EMC Compliance to directives (2004/108/EG).

VSD+ for 50% average energy savings*
In almost every production environment, air demand fluctuates depending on different factors such as the time of
the day, week or even month. Extensive measurements and studies of compressed air demand profiles show that many
compressors have substantial variations in air demand.
Air demand
Energy consumption
Air demand
Energy consumption
Fixed speed load/unload
Time
GA VSD+ energy consumption
Air demand
Savings
Air demand
Energy consumption
GA vsd+
ga fixed speed
Energy
Investment
Maintenance
* Based on measurement performed by an independent energy audit agency.
Time
A step ahead in monitoring
and controls
The next-generation Elektronikon® operating system offers a wide variety of control and monitoring features that allow you
to increase your compressor’s efficiency and reliability. To maximize energy efficiency, the Elektronikon® controls the main
drive motor and regulates system pressure within a predefined and narrow pressure band.
Dual pressure set point
Most production processes create fluctuating demands which, in turn, can create
energy waste in low use periods. Using the Elektronikon®, you can manually or
automatically create two different system pressure bands to optimize energy use
and reduce costs.
Week timer
An on-board clock enables timers to be set up to support any working scheme –
per day, per week or completely customizable to your specific situation and needs.
Integrated Saver Cycles
Fan Saver Cycle reduces the energy consumption by switching off the fan in light
load applications. Using an ambient sensor to monitor the required dew point
suppression, the Elektronikon® starts and stops the dryer, minimizing energy use.
Excellence in integrated air quality
Untreated compressed air contains moisture and aerosols which increase the risk of corrosion and compressed air system
leaks. This can result in a damaged air system and contaminated end product. Maintenance costs can far exceed air treatment
costs. Our compressors provide the clean, dry air that improves your system’s reliability, avoids costly downtime and production
delays, and safeguards the quality of your products.
Save money and the environment
Avoid risk of corrosion and system leaks, and ensure the effective safe
disposal of untreated condensate – all within ISO 14001 standards.
On average 50% energy savings with newly
designed integrated dryers
1. Pressure dew point of 3°C (100% relative humidity at 20°C).
2. Unique Saver Cycle Control, with ambient temperature sensor and based on dryer
load and relative humidity of compressed air, saves energy at partial load.
3. Heat exchanger cross-flow technology with low pressure drop.
4. Zero waste of compressed air thanks to no-loss condensate drain.
5. Reduced operating costs.
6. Environmentally-friendly characteristics; zero ozone depletion.
7. Global warming potential has been reduced significantly by an average of 50%
by reducing the amount of refrigerant in the new dryer.
Energy-saving contributors
Low pressure
drop
Energy-efficient
refrigerant
Saver Cycle
Control
Heat exchanger
no-loss
condensate drain
Technical specifications
COMPRESSOR
TYPE
Maximum working
pressure WorkPlace
Capacity FAD* min-max
Installed
motor
power
Noise
level**
Weight
WorkPlace
Weight
WorkPlace Full
Feature
bar(e)
psig
l/s
m³/h
cfm
kW
hp
dB(A)
kg
kg
5.5
7
9.5
12.5
5.5
7
9.5
12.5
5.5
7
9.5
12.5
4
7
9.5
12.5
4
7
9.5
12.5
4
7
9.5
12.5
4
7
9.5
12.5
4
7
9.5
12.5
80
102
138
181
80
102
138
181
80
102
138
181
58
102
138
181
58
102
138
181
58
102
138
181
58
102
138
181
58
102
138
181
7.2-21.9
7.0-21.7
6.8-18.0
7.3-14.2
7.3-32.9
7.3-32.5
7.0-27.2
7.6-23.5
7.2-42.3
7.1-41.8
6.8-35.5
7.3-27.9
15.0 - 63.2
14.7 - 61.8
16.9 - 53.0
16.3 - 43.0
15.2 - 76.1
14.8 - 74.3
17.1 - 64.5
16.9 - 53.5
14.8 - 85.8
14.5 - 85.3
16.9 - 77.9
16.3 - 64.1
15.1 - 98.0
15.0 - 97.4
17.2 - 85.6
16.7 - 72.0
15.3 - 116.4
14.8 - 114.8
17.1 - 102.1
16.4 - 86.6
25.9-78.8
25.2-78.1
24.5-64.8
26.3-51.12
26.3-118.4
26.3-117.0
25.2-97.9
27.4-84.6
25.9-152.3
25.6-150.5
24.5-127.8
26.3-100.4
53.9 - 227.5
53.0 - 222.6
61.0 - 190.8
58.5 - 154.8
54.6 - 274.0
53.3 - 267.6
61.5 - 232.1
60.7 - 192.5
53.2 - 309.0
52.1 - 307.2
60.7 - 280.5
58.8 - 230.8
54.3 - 352.8
54.1 - 350.5
61.7 - 308.2
60.0 - 259.1
55.1 - 418.9
53.2 - 413.2
61.5 - 367.7
58.9 - 311.8
15.2-46.4
14.8-46.0
14.4-38.1
15.5-30.1
15.5-69.7
15.5-68.8
14.8-57.6
16.1-49.8
15.2-89.6
15.0-88.6
14.4-75.2
15.5-59.1
31.7 - 133.8
31.2 - 131.0
35.9 - 112.3
34.4 - 91.1
32.1 - 161.2
31.3 - 157.4
36.2 - 136.6
35.7 - 113.2
31.3 - 181.8
30.6 - 180.7
35.7 - 165.1
34.6 - 135.8
31.9 - 207.6
31.8 - 206.2
36.3 - 181.3
35.3 - 152.4
32.4 - 246.4
31.3 - 243.1
36.2 - 216.3
34.6 - 183.4
7.5
7.5
7.5
7.5
11
11
11
11
15
15
15
15
18
18
18
18
22
22
22
22
26
26
26
26
30
30
30
30
37
37
37
37
10
10
10
10
15
15
15
15
20
20
20
20
25
25
25
25
30
30
30
30
35
35
35
35
40
40
40
40
50
50
50
50
62
62
62
62
63
63
63
63
64
64
64
64
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
193
193
193
193
196
196
196
196
199
199
199
199
367
367
367
367
363
363
363
363
373
373
373
373
376
376
376
376
376
376
376
376
277
277
277
277
280
280
280
280
288
288
288
288
480
480
480
480
485
485
485
485
490
490
490
490
500
500
500
500
500
500
500
500
50 / 60 Hz version
GA 7 VSD+
GA 11 VSD+
GA 15 VSD+
GA 18 VSD+
GA 22 VSD+
GA 26 VSD+
GA 30 VSD+
GA 37 VSD+
* Unit performance measured according ISO 1217 ed. 4 2009, annex E, latest edition.
** Mean noise level measured at a distance of 1 m according to ISO 2151:
2004 using ISO 9614/2 (sound intensity method); tolerance 3 dB(A).
Reference conditions:
- Absolute inlet pressure 1 bar (14.5 psi).
- Intake air temperature 20°C, 68°F.
H
FAD is measured at the following effective working pressures:
- 5.5 bar(e)
- 7 bar(e)
- 9.5 bar(e)
- 12.5 bar(e)
Maximum working pressure:
- 13 bar(e) (188 psig)
L
H
W
W
L
Standard
Standard
Full Feature
Full Feature
DIMENSIONS
GA 7-15 VSD+
GA 18-37 VSD+
L (mm)
W (mm)
H (mm)
L (mm)
W (mm)
H (mm)
630
780
610
811
1420
1590
630
780
985
1273
1420
1590
Flow chart GA VSD+ FF
16
14
13
12
9
15*
7
10
11
8
1
6
4
5
2
3
1
Inlet filter
9
2
Sentinel valve
10 Minimum pressure valve
Air/oil mixture
3
Screw element
11 Solenoid valve
Oil
4
iPM
12 After cooler
Wet compressed air
5
Air/oil vessel
13 Fan
Condensate
6
Thermostatic bypass valve
14 Oil cooler
Dry compressed air
7
Oil filter
15 Electronic drain
8
Safety valve
16 Dryer
Oil separator
(* mounted on after cooler on models without dryer)
Intake air
Driven by innovation
productivity. As an industry leader, we are dedicated to offering high air quality at
the lowest possible cost of ownership. Through continuous innovation, we strive to
safeguard your bottom line and bring you peace of mind.
Building on interaction
As part of our long-term relationship with our customers, we have accumulated
extensive knowledge of a wide diversity of processes, needs and objectives. This
gives us the flexibility to adapt and efficiently produce customized compressed air
solutions that meet and exceed your expectations.
A committed business partner
With a presence in over 170 countries, we will deliver high-quality customer
service anywhere, anytime. Our highly skilled technicians are available 24/7
and are supported by an efficient logistics organization, ensuring fast delivery
of genuine spare parts when you need them. We are committed to providing
the best possible know-how and technology to help your company produce,
grow, and succeed. With Atlas Copco you can rest assured that your superior
productivity is our first concern!
www.atlascopco.com
2935 0981 42 - © 2013, Atlas Copco Airpower NV, Belgium. All rights reserved. Designs and specifications are subject to change without notice or obligation. Read all safety instructions in the manual before usage.
With more than 140 years of innovation and experience, Atlas Copco will deliver
the products and services to help maximize your company’s efficiency and