ZS 55+-75+ VSD750-1250 pressure variants

Atlas CopcoOil-free Positive Displacement Blowers

We are committed to your superior productivity through interaction and innovation.

Total capability, total responsibility

Right at the heart of your business, Atlas Copco

delivers quality compressed air for superior

operational capacity. From compressed air

generation to point of use, you can choose from

our wide range of products to create a complete

compressed air system that’s tailored to your

specific needs. All Atlas Copco products are

engineered to integrate seamlessly, ensuring

the highest level of reliability and energy efficiency.

In addition, our Aftermarket portfolio is designed to

provide maximum value by guaranteeing optimum

availability and reliability of your compressed air

equipment.

Atlas Copco has been setting the industry

standard in compressed air technology for more

than a century. Our dedication to offering the

best products and services is not limited to

plant air solutions, but extends to low pressure

air applications, meeting the exact needs of the

specific process. Around the clock and around

the globe, the ZS+ oil-free positive displacement

blower series is the right choice for a trusted

partner in the low pressure air process.

Economy + Efficiency = ZS+

RELIABILITY & AVAILABILITY

For over sixty years, Atlas Copco has been leading the industry in oil-free compressed air technology, drawing on vast experience and continuous technological innovations. Rest assured: severe certification and testing procedures are conducted to ensure the air supplied meets the highest standards of quality control. With the protection of your application in mind, Atlas Copco has designed its ZS+ range to offer you superb oil-free quality air.

LOW NOISE

Employees working close to a ZS+ blower will notice the difference. Its fully silenced package plus a reduced pulsation level in the piping mean that noise and vibrations are noticeably reduced. The result is a minimized impact on the surrounding environment, improved employee comfort and better concentration on the job at hand.

You can’t afford to compromise on clean, oil-free air for your critical processes. Atlas Copco, a pioneer in oil-free air screw technology, is known for its range of compressors designed especially for applications that require oil-free air.

We are also the world’s first compressor manufacturer to receive certification for a new industry standard of air purity: ISO 8573-1 CLASS 0.

INTEGRATION

Efficient oil-free air + Reduced energy cost Low pressure air is a prerequisite for the continuity and quality of many manufacturing processes. To keep your production and processes running smoothly, a constant delivery of air is essential. In short, overall production reliability is your key concern. Opt for Atlas Copco’s advanced ZS+ blower range and you obtain the ideal solution to meet the high demands your process imposes on your blower. The ZS+ series offers the pure oil-free air you need while providing improved energy efficiency.

With energy amounting to over 70% of a blower’s lifecycle costs (LCC), its importance is clear. The most cost-effective compressed air solution optimizes the pressure, volume and air treatment equipment for each production process. Atlas Copco’s ZS+ blowers provide you with the ultimate, all-in-one, fully integrated package to reduce your electricity bill by 40%. The use of gear driven screw elements assures less mechanical losses compared to regular, belt driven roots blowers.

The ZS+ comes as a complete, fully integrated package, including Variable Speed Drive, controls, canopy, silencer and valves. There are no hidden costs. It arrives ready for easy, plug-and-run installation, saving you time and money, and its reliable performance is backed by Atlas Copco’s global sales and service organisation at all times.

CLASS 0

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Intelligent design

SUPERB EFFICIENCY

Use of an oil-free screw element with internal compression largely reduces volumetric losses.

Direct drive integrated gearbox ensures less losses compared to a pulley system.

High-efficiency IP55 Class F conforming to EFF1. Inverter duty motor for VSD models.

Variable Speed Drive (VSD) variant adapts the air delivery to the air demand.

CONTROL AND SAFETY COMPLIANCE

Electrical cubicle starter. No additional costs, no need for local installation. Just plug and run.

Elektronikon® controller monitors overall system performance status with pro-active service indications.

Emergency button for immediate shut down.

Blow-off/safety valve for reliable and simple control.

Atlas Copco’s ZS+ blower presents a completely new and innovative solution to your air requirements. A fully integrated and compact

PURITY

Air inlet filter removes particles up to 3µ at a performance of 99.9% with a low pressure drop.

100% oil-free air delivery, proven by TÜV and certified by ISO 8573-1.

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SILENT OPERATION

Pulsation damper with noise absorption material reducing piping noise.

Base frame allows for simple installation. No need for bolts.

Six sides enclosed canopy with silenced doors and air inlet baffling.

ULTIMATE RELIABILITY

Precision timing gears for proven reliability and increased uptime.

Industry proven element coating for closer tolerances and increased lifetime.

Bearings designed for high stability. No need for pre-lubrication.

✓ Coated element

✓ Starter system

✓ Control system (Elektronikon®)

✓ Gearbox - no pulleys

✓ Check valve

✓ Pressure control

✓ Phase sequence

(fixed speed variant only)

✓ Silenced canopy

✓ Controlled blow off/safety valve

✓ Anti condensation heaters (fixed speed variant only)

✓ Variable Speed Drive (VSD)

✓ Flow control

✓ LAN or Internet control/monitoring

COMPLETE “ALL-IN PACKAGE”

OPTIONS

silenced package, including drive motor and filtration along with a controller, it ensures optimum efficiency and reliability.

STANDARD

• Unlike belt-driven compressors, ZS+ blowers incorporate a flanged motor housing and gearbox element, offering permanent alignment during transport, installation and operation of the unit.

• Highly efficient, totally enclosed fan-cooled electric motor (IP55, Class F).

Proven technology

Set to fulfill and even exceed your expectations and demands, Atlas Copco’s ZS+ series is the result of decades of experience in oil-free design and manufacturing. Uniting a range of advanced

technologies, the ZS+ blower offers you Atlas Copco’s proven knowledge in a class leading design.

The compression principle is simple Compression is internal, allowing for increased efficiency. Two helicoidal rotors, one with four lobes and the other with six

flutes, turn into each other. The former screw turns 50% faster than the latter. The intake air is compressed between the rotors and their housing.

ROTORS

The intermeshing compression rotors never touch, thanks to precision timing gears that maintain minute clearances between the rotor

surfaces. Wear and tear is eliminated and no lubrication is required in the compression space.

Special seals prevent air escaping along the rotor shaft, while separate seals stop oil escaping from the rotor bearings into the

compression chamber. The result is 100% oil-free and pulsation-free air.

SEALS

• Designed and manufactured by Atlas Copco

• Proven, oil-free screw compression

• Fully synchronized rotor assembly

• Efficient shaft sealing

• No residual oil in the air

• Superior rotor coating

100% OIL-FREE AIR

GEARS

Inlet Filter80

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Traditional Tri Lobe BlowerZS+

25% savings

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MOTOR AND COMPRESSOR PERMANENTLY ALIGNED

Silencer

Stage

BeltMotor

* Output: 1600 m3/h @ 0.8 bar

Powerful efficiency

Engineered for absolute reliability, Atlas Copco’s ZS+ oil-free positive displacement blowers deliver the air that keeps your production running. Every ZS+ system illustrates our continued

commitment to providing efficient air solutions that ensure a reliable source of quality compressed air.

LOW NOISE OPERATION

There is no need for a dedicated operator room. Full sound enclosures substantially reduce noise levels, while rotary screw technology minimizes vibration.

ADVANCED CONTROL AND MONITORING

You rely on your compressed air solution to perform efficiently day in, day out. To guarantee maximum uptime, continuous surveillance is a must. The Elektronikon® operating system provides control and monitoring to increase your blower’s efficiency and reliability. Easily expandable with extra sensors, digital inputs and internet communication functions, the Elektronikon can be adapted to your specific needs and offer simple, central control of up to four compressors.

External compression = losses

ZS+TRADITIONAL TRI LOBE BLOWER

Input power

Pulley = losses

INTAKE VOLUME DELIVERED VOLUMEIntake volume - l/s - m3 - cfm FAD - l/s - m3/min - cfm

Inlet flow referred to blower element inlet conditions. Seal leakages and inlet losses should not deprive you of the air you paid for.

FAD according to ISO 1217 Ed. 3. A ZS+ blower truly delivers what is promised.

TRUE PERFORMANCE

Atlas Copco’s ZS+ blowers are measured according to ISO 1217 Ed. 3, stipulating the FAD measurement at the outlet of the package, net of all losses. Atlas Copco specifications

correspond to the capacity and pressure the customer receives, not to the intake volume of the blower. Differences are substantial.

Internal compression = energy savings

Input power

Inlet filter design = energy savings

Integrated gearbox = energy savings

Smooth silencer = energy savings

Flow = 1600 m3/h @ 0.8 barSound Pressure level = >90 dB(A)

Flow = 1600 m3/h @ 0.8 barSound Pressure level = 69 dB(A)

75 kW 55 kW

External leakagesExternal leakages Net usable air

• Precise pressure control for optimal efficiency.

• Shutdown scheduling to avoid costs during non-working hours.

• Prioritized use of the most economic machines over older, less effective versions.

• Continuous usage of VSD machines.

• Use of multiple VSD blowers in their most efficient performance zones.

• Air supply = air demand.

• With a varying air demand pattern, motor speed regulation is the most efficient blower control method.

• Energy savings at partial load.

• Process stability improvement.

• Reduced investments in electrical systems.

• No peak current penalties.

• Smooth starting.

Reduced costs

Considering that the generation of compressed air can account for more than 40% of a plant’s total electricity bill, optimizing energy usage is crucial. In Atlas Copco’s VSD (Variable Speed Drive) technology, we provide you with a partner on the road to unrivalled cost savings. The integrated frequency converter of

the ZS+ VSD series varies the speed of the drive motor to match the changes in your compressed air demand, thus using a minimum amount of energy and more than justifying the additional investment.

speed windows

minimum maximumFlow

Atlas Copco integrated solution

non-integrated solution

Operating range

SUPREME ENERGY SAVINGS

LOWEST POSSIBLE RUNNING COST

CONSTANT PRESSURE & LOW STARTING CURRENTS

• The blower can be regulated steplessly within the speed range.

NO SPEED WINDOWS

• Highest possible component synergy.

• Simplified service.

• Worldwide service support.

ONE BRAND FOR DRIVE MOTOR AND VSD

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Average 35% Energy Savings

Process pressure

Pressure - turbo-modulating - 0.3 bar Pressure - VSD - 0.1 bar

0.3bar

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Star DeltaDOL Soft StarterVSD

CONSTANT PRESSURE

The output pressure is virtually constant over a wide capacity range (narrow pressure band within 0.1 bar). This optimizes energy consumption and ensures high process stability when the air demand fluctuates.

NO CURRENT PEAKS

Blower starts are exceptionally smooth. This greatly simplifies the electrical installation and avoids current peaks and the accompanying penalties from the utility company.

VSD BENEFITS

• Process stability.

• Lower and constant air net pressure.

• Low starting torque.

• Low starting currents.

• Constant, high power factor throughout speed range.

The long-term cost of owning and operating a blower is a combination of capital, installation, servicing and energy costs. Opt for a ZS+ VSD blower solution to obtain the highest return on investment.

LCC Of A STAnDArD bLOWEr LCC Of A VSD bLOWEr

Peace of mind

ACTIVITY PRODUCT*

Genuine parts Atlas Copco Service kits & oils

Extended warranties AIRXtend

Service contracts ServicePlan

System audits AIRScan™

Remote monitoring AIRConnect™

Energy saving AIROptimizer™

Product improvements Upgrade programs

* More information is available from your local Atlas Copco customer center.

At Atlas Copco, our responsibility doesn’t stop when the product is delivered. An extensive portfolio of exclusive Aftermarket products and services is designed to add maximum value for our customers – no hidden costs, no surprises and minimized risk to your processes. Guaranteed serviceability

within 24 hours ensures optimum availability and reliability of your compressed air systems with the lowest possible operating costs. We deliver this complete service guarantee through our extensive Aftermarket organization, maintaining our position as the leader in compressed air.

FULL RANGE OF AVAILABLE AFTERMARKET PRODUCTS AND ACTIVITIES

Technical specifications

ZS+ AIRCOOLED OIL-FREE PD BLOWER - 50 HZ

Pressure Gear Installed motor

powerFree Air Delivery(1)

Sound Pressure

level(2)

mbar kW l/s m3/h cfm dB(A)

ZS 55+ 750 A 55 340 1225 721 69

ZS 55+ 750 B 55 472 1700 1000 69

ZS 55+ 1200 A 55 331 1195 703 69

ZS 55+ 1200 B 55 466 1678 987 69

Dimensions

L W H Weight

mm inch mm inch mm inch kg lb

ZS 55+ 2288 90.1 1080 42.5 1960 77.2 1665 3671

ZS 75+ 2288 90.1 1080 42.5 1960 77.2 1710 3770

ZS 55+-75+ VSD 2288 90.1 1080 42.5 1960 77.2 1850 4079

ZS+ AIRCOOLED OIL-FREE PD BLOWER - 60 HZ

Pressure Gear Installed motor

powerFree Air Delivery(1)

Sound Pressure

level(2)

mbar kW l/s m3/h cfm dB(A)

ZS 55+ 750 A 55 420 1512 890 74

ZS 55+ 750 B 55 572 2062 1213 74

ZS 55+ 1200 A 55 413 1487 875 74

ZS 75+ 1200 B 75 567 2042 1202 74

ZS+ AIRCOOLED OIL-FREE PD VSD BLOWER - 50/60 HZ

PressureInstalled motor

powerFree Air Delivery(1) Sound

Pressure level(2)

mbar kW l/s m3/h cfm dB(A)

ZS 55+ VSD 750 55 641 2310 1360 69

ZS 55+ VSD 1200 55 468 1688 993 69

ZS 75+ VSD 1200 75 635 2289 1347 69

(1) reference conditions: - dry air- absolute inlet pressure 1 bar(a)- cooling and air intake temperature 20°C- nominal working pressure- performance of the compressor package measured according to ISO 1217, Third Edition, Annex C

(2) ± 3 dB(A) measured at a distance of 1 m and according to ISO 2151: 2004 and using ISO 9614-2

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In order to be First in Mind—First in Choice® for all your

compressed air needs, Atlas Copco delivers the products

and services that help increase your business’ efficiency

and profitability.

Atlas Copco’s pursuit of innovation never ceases, driven by

your need for reliability and efficiency. Always working with

you, we are committed to providing you the customized

quality air solution that is the driving force behind

your business.

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www.atlascopco.com

Never use compressed air as breathing air without prior purification in accordance with local legislation and standards.