ATLAS COPCO

OIL-FREE SCREW
COMPRESSORS

ZT 55-90 & ZT 110-160 Classic

ZT 55-90 VSD & ZT 110-160 VSD Classic
OUTSTANDING PERFORMANCE,
MAXIMUM BENEFITS
Atlas Copco ZT Classic Line compressors provide high-quality compressed air in the harshest environmental
conditions. Incorporating the patented Atlas Copco’s oil-free screw element and superior structure design, they
provide a long and trouble-free life at the lowest possible operating cost.

Food and beverage industry

ƒƒ Atlas Copco oil-free air compressors serve a multitude of
applications in the Food and Beverage industry including:
fermentation, packing, air-filling, transport, filling &
capping, cleaning air, instrument air, etc.
ƒƒ Atlas Copco Class 0 compressors deliver the highest
level of air purity. Zero oil means there is no risk of
contamination.

Electronic industry
ƒƒ Provide high-quality oil-free clean air for the production
of electronic products and guarantee the processing
precision.
ƒƒ Solve the issues of bad performance and short lifetime
caused by impure air, and reduce production downtime.

Pharmaceutical industry
ƒƒ Fully meet the strict requirement on compressed air by
GMP certification.
ƒƒ 100% oil-free air prevent any risk of contamination in such
processes as fermentation, air-filling, tablet packaging,
canning, automatic production, etc.
ƒƒ CLASS 0 eliminates risks, keep high quality of products
and protect your hard-won reputation.
ƒƒ CLASS 0 helps you successfully obtain FDA certificate.
CLASS 0: THE
INDUSTRY STANDARD
Oil-free air is used in all kinds of industries where
air quality is paramount for the end product and
production process. These applications include food and
beverage, pharmaceutical, chemical and petrochemical,
semiconductor and electronics, the medical sector,
automotive paint spraying, textile and many more.
In these critical environments, contamination by
even the smallest quantities of oil can result in costly
production downtime and product spoilage.

First in oil-free air technology

Over the past sixty years Atlas Copco has pioneered the
development of oil-free air technology, resulting in a range
of air compressors and blowers that provide 100% pure, clean air.
Through continuous research and development, Atlas Copco
achieved a new milestone, setting the standard for air purity
as the first manufacturer to be awarded CLASS 0 certification.

Eliminating any risk

As the industry leader committed to meeting the needs of the most
demanding customers, Atlas Copco requested the renowned
TÜV institute to type-test its range of oil-free compressors and
blowers. Using the most rigorous testing methodologies available,
all possible oil forms were measured across a range of temperatures
and pressures. The TÜV found no traces of oil at all in the output
air stream.

Concentration total oil

CLASS (aerosol, liquid, vapor) mg/m3

As specified by the equipment user or

0 supplier and more stringent than class 1

1 < 0.01

2 < 0.1

3 <1

4 <5

Current ISO 8573-1 (2010) classes (the five main classes and the associated maximum
concentration in total oil content).
SETTING A NEW STANDARD
IN THE INDUSTRY
Atlas Copco’s ZT Classic Line compressors bring you outstanding sustainability, reliability and
performance, while minimizing the total cost of ownership. Built to perform even in the harshest
environments, these compressors keep your production running efficiently.

1 3
Highly effecient inlet filter High precision gears
2
ƒƒ Machine mounted, easy to maintain AGMA A5
ƒƒ Minimum intake losses ƒƒ Long lifetime
1
ƒƒ Low transmission losses
ƒƒ Low noise level and vibration

2 4
Advanced Elektronikon® Superior element bearings
control and monitoring system ƒƒ High stability under varying load conditions
ƒƒ Overall system performance status with pro-active ƒƒ Adjust to change load
service indications, alarms for malfunctions and safety ƒƒ No need for pre-lubrication/stabilisation time
shutdowns multi-language selectable display
ƒƒ Joint development with world top-ranked
ƒƒ All monitoring and control functions via one interface SKF bearing supplier
wide communication possibilities
ƒƒ Integration possible in many process control systems
(field bus system)

5 9
Water separator Highly efficient
ƒƒ The labyrinth design efficiently separates the integrated fan
condensate from the compressed air ƒƒ Integrated assembly
ƒƒ Low moisture carry-over protects downst ream ƒƒ Efficient cooling
equipment
ƒƒ Low energy consumption
ƒƒ Long High Pressure element lifetime
ƒƒ Better dryer performance
 9
6
World class oil-free
7 compression element
ƒƒ 100 % oil-free air compression
ƒƒ Speed far below critical speed
ƒƒ High overall efficiency, thanks to:
– Superior rotor coating
– Element cooling jackets
ƒƒ Excellent process and assembly
6 precision

8
4
5

7
Cooler
ƒƒ Aluminum alloy fin cooler
– Reduce dust accumulation and
filth blockage

8
Totally enclosed motor
ƒƒ IE3 high efficiency motor
ƒƒ IP55 TEFC protection
ƒƒ Class F insulation
VSD: DRIVING DOWN ENERGY COSTS
Over 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. Moreover, the generation
of compressed air can account for more than 40% of a plant’s total electricity bill. To cut your energy costs,
Atlas Copco pioneered Variable Speed Drive (VSD) technology in the compressed air industry. VSD leads
to major energy savings, while protecting the environment for future generations. Thanks to continual
investments in this technology, Atlas Copco offers the widest range of integrated VSD compressors on
the market.

12%
Energy savings of up to 35%
Atlas Copco's VSD technology closely follows the air
demand by automatically adjusting the motor speed.
11% This results in large energy savings of up to 35%.
35%
The Life Cycle Cost of a compressor can be cut by an
average of 22%. In addition, lowered system pressure
with VSD minimizes energy use across your
production dramatically.

Total compressor lifecycle cost

Energy Investment
42% Energy savings with VSD Maintenance

What is unique about the integrated Atlas Copco VSD?

1 The Elektronikon® controls both the compressor and the 6 Mechanical enhancements ensure that all components
integrated converter, ensuring maximum machine safety operate below critical vibration levels throughout the
within parameters. entire compressor speed range.
2 Flexible pressure selection from 4 to 10.4 bar with 7 A highly efficient frequency converter in a cubicle
VSD reduces electricity costs. ensures stable operation in high ambient temperatures
3 Specific converter and motor design (with protected up to 50°C/122°F (standard up to 40°C/104°F).
bearings) for the highest efficiency across 8 No ‘speed windows’ that can jeopardize the energy
the speed range. savings and the stable net pressure. Turndown capability
4 Electric motor specifically designed for low operating of the compressor is maximized to 70-75%.
speeds with clear attention to motor cooling and 9 Net pressure band is maintained within 0.10 bar, 1.5 psi.
compressor cooling requirements.
5 All Atlas Copco VSD compressors are EMC tested
and certified. Compressor operation does not
influence external sources and vice versa.
A STEP AHEAD IN
MONITORING AND CONTROLS
The 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.

Built-in intelligence
ƒƒ Improved user-friendliness: 3.5” color display with clear pictograms for easy readout.
ƒƒ Monitoring of running conditions and graphical indication of the service plan.
ƒƒ Regulates system pressure within a predefined narrow pressure band.
ƒƒ Integrated energy savings functions like dual pressure set point, 4 different
programmable week schedules.
ƒƒ Comprehensive icon indications and intuitive navigation.
ƒƒ 31 different languages including character-based languages.
ƒƒ Durable keyboard to resist tough treatment in demanding environments.
ƒƒ Internet-based compressor visualization using a simple Ethernet connection.
ƒƒ Remote control and advanced connectivity functions.

Online & mobile monitoring

Monitor your compressors over the Ethernet with the new
Elektronikon® controller. Monitoring features include warning
indications, compressor shut-down and maintenance scheduling.
An Atlas Copco App is available for iPhone/Android phones as well
as iPad and Android tablets. It allows fingertip monitoring of your
compressed air system through your own secured network.

FLOW CHARTS
Fixed speed: ZT Variable speed drive: ZT
lnlet filter lnlet filter

Air inlet Air inlet

Unloading valve
Cooling jackets Cooling jackets
Gear oil filter Gear oil filter
Bypass valve Bypass valve
High pressure element Low pressure
Low pressure
element element
Air

Oil Oil Oil Air

pump pump
Oil
Siliencer Siliencer
Check Check
valve valve

Oil cooler Oil cooler

Air/water seperator Air/water seperator

Air outlet Air outlet

Fan Fan
Aftercooler Intercooler Aftercooler Intercooler
TECHNICAL SPECIFICATIONS
ZT 55-90 / VSD CLASSIC
Weight
Maximum
Capacity FAD Installed motor Noise level
working pressure Outlet
Type Standard
size
bar psi l/s m3/min cfm kW hp dB(A) kg lb

50 Hz
ZT55-7 Classic 7 102 139.1 8.3 295 55 - 1940 4277
ZT55-8 Classic 8 116 137.0 8.2 290 55 - 1940 4277
ZT75-7 Classic 7 102 200.7 12.0 425 75 - 2100 4630
ZT75-8 Classic 8 116 181.8 10.9 385 75 - 2100 4630
79
ZT75-10 Classic 10 145 164.7 9.9 349 75 - 2100 4630
ZT90-7 Classic 7 102 237.3 14.2 503 90 - 2150 4740
G2 1/2
ZT90-8 Classic 8 116 223.9 13.4 474 90 - 2150 4740
ZT90-10 Classic 10 145 211.1 12.7 447 90 - 2150 4740
ZT75VSD -7.5 Classic 7.5 109 210 12.6 445 75 - 80 2108 4647
ZT75VSD -8.6 Classic 8.6 125 210 12.6 445 75 - 80 2108 4647
ZT90VSD -7.5 Classic 7.5 109 259 15.5 549 90 - 80 2108 4647
ZT90VSD -8.6 Classic 8.6 125 259 15.5 549 90 - 80 2108 4647
60 Hz
ZT55-7 Classic 7 102 145.3 8.7 308 55 75 1940 4277
ZT75-7 Classic 7 102 200.7 12.0 425 75 101 2100 4630
ZT75-9 Classic 9 131 188.2 11.3 399 75 101 79 2100 4630
ZT90-7 Classic 7 102 229.7 15.2 535 90 121 2150 4740
ZT90-9 Classic 9 131 229.7 13.8 535 90 121 2150 4740 G2 1/2
ZT75VSD -7.5 Classic 7.5 109 210 12.6 445 75 101 80 2108 4647
ZT75VSD -8.6 Classic 8.6 125 210 12.6 445 75 101 80 2108 4647
ZT90VSD -7.5 Classic 7.5 109 259 15.5 549 90 121 80 2108 4647
ZT90VSD -8.6 Classic 8.6 125 259 15.5 549 90 121 80 2108 4647

(1) Reference conditions: pressure to ISO 2151:2004 and using ISO 9614-2
-- dry air
-- absolute inlet pressure 1 bar(a) (4) Pressure dewpoint is specified for (6) Maximum intake / cooling air temperature is 50°C for
-- cooling and air intake temperature 20°C -- 20°C cooling air/water temperature HAT versions
-- nominal working pressure -- relative humidity of 60%
-- performance of the compressor package measured -- nominal working pressure (7) Dependent on ambient conditions
according to ISO 1217, Third Edition, Annex C -- load level of minimum 50%
For VSD: at reference speed Conversions
(2) Cooling water temperature rise of 15°C -- With ER please consult Atlas Copco - 1kg = 2.2 lbs
- 1mm = 0.039 inch
- °F = °C x 9 / 5 + 32
(3) Max. capacity is at reference pressure and not at max. (5) ±3dB(A) measured at a distance of 1m and according

Dimensions
Standard

Type A B C

Length (mm) Width (mm) Height (mm)

ZT 55-90 / VSD Classic 2700 1600 1800 C

B A
TECHNICAL SPECIFICATIONS
ZT 110-160 / VSD CLASSIC
Weight
Maximum
Capacity FAD Installed motor Noise level
working pressure Outlet
Type Standard
size
bar psi l/s m3/min cfm kW hp dB(A) kg lb

50 Hz
ZT110-7.5 Classic 7.5 109 306.9 18.4 650 110 - 2887 6365
ZT110-8.6 Classic 8.6 125 286.2 17.2 606 110 - 2887 6365
ZT132-7.5 Classic 7.5 109 363.1 21.8 769 132 - 3078 6786
ZT132-8.6 Classic 8.6 125 325.2 19.5 689 132 - 3078 6786
79 G3
ZT145-7.5 Classic 7.5 109 387.3 23.2 820 145 - 3078 6786
ZT145-8.6 Classic 8.6 125 358.4 21.5 759 145 - 3078 6786
ZT132VSD-8.6 Classic 8.6 125 369.2 22.2 782 132 - 2870 6327
ZT160VSD-8.6 Classic 8.6 125 388.6 23.3 823 160 - 2870 6327
60 Hz
ZT110-8.6 Classic 8.6 125 317.7 19.1 673 110 150 2887 6365
ZT145-8.6 Classic 8.6 125 391.2 23.5 829 145 200 3078 6786
79 G3
ZT132VSD-8.6 Classic 8.6 125 369.2 22.2 782 132 175 2870 6327
ZT160VSD-8.6 Classic 8.6 125 388.6 23.3 823 160 215 2870 6327

(1) Reference conditions: pressure to ISO 2151:2004 and using ISO 9614-2
-- dry air
-- absolute inlet pressure 1 bar(a) (4) Pressure dewpoint is specified for (6) Maximum intake / cooling air temperature is 50°C for
-- cooling and air intake temperature 20°C -- 20°C cooling air/water temperature HAT versions
-- nominal working pressure -- relative humidity of 60%
-- performance of the compressor package measured -- nominal working pressure (7) Dependent on ambient conditions
according to ISO 1217, Third Edition, Annex C -- load level of minimum 50%
For VSD: at reference speed Conversions
(2) Cooling water temperature rise of 15°C -- With ER please consult Atlas Copco - 1kg = 2.2 lbs
- 1mm = 0.039 inch
- °F = °C x 9 / 5 + 32
(3) Max. capacity is at reference pressure and not at max. (5) ±3dB(A) measured at a distance of 1m and according

Dimensions
Standard

Type A B C

Length (mm) Width (mm) Height (mm)

ZT 110-160 / VSD Classic 3000 1560 2000 C

B A
 6669103701 © 2016, Atlas Copco, Wuxi. All rights reserved. Designs and specifications are subject to change without notice or obligation. Read all safety instructions in the manual before usage.

COMMITTED TO SUSTAINABLE PRODUCTIVITY

We stand by our responsibilities towards our customers, towards the
environment and the people around us. We make performance stand
the test of time. This is what we call – Sustainable Productivity.

www.atlascopco.com