Efficient, Clean and reliable compression

• Certified oil-free compression technology (Class 0 certified)
• Durably coated rotors ensure optimal operational clearances
• Perfectly sized and timed inlet-outlet ports and rotor profile result in the lowest specific power consumption
• Tuned cool oil injection to bearings maximizing the lifetime

Highly efficient Air cooled induction motor

• Air cooled with improved efficiency and extended lifetime
• IP55 rated, fully enclosed motor housing for operation in the hardest environmental conditions

Reliability by ensured cooling and lubrication of bearings 

• The integrated oil pump is directly driven by the drive shaft, ensuring continuous operation without any interruptions
• Oil injection nozzles deliver the precise amount of cooled and filtered oil to each bearing

Reliable transmission, minimum maintenance required

• Motor – screw blower transmission utilizing a robust belt drive system
• Low maintenance costs with extended service intervals, featuring durable components such as belts and pulleys

Advance touch screen monitoring system

• User friendly Elektronikon® Mk5 Touch controller and regulation system
• Advanced connectivity capabilities thanks to system process controller and/or Optimizer 4.0
• Included warning indications, maintenance scheduling and online visualization of the machine’s condition
• Plug and Play solution

Fully integrated VSD inverter

• Integrated solution to maximize blower turndown at high efficiency level
• Optimized complete solution, Improved control and wide turn-down, guaranteed spare parts availability
• Trouble free operation in harshest conditions:IP55 protection degree, aluminum enclosure protecting from dust and moisture.

Built-in mechanical integrity & protection

• Integrated start-up, safety and blow-off valve : smooth start-up, ensured over pressure protection
• Atlas Copco check valve design : Minimal pressure drop, ensured operation

Highly efficient Inlet filter

• Feathered with a G4 air filter with 90% dust filtration efficiency (EN779), made from durable Polyester with a steel core, ensuring reliability in harsh conditions

ZS4(VSD)’s intelligent LP and HP element split optimizes performance across pressure ranges—delivering higher energy efficiency, lower SER, and tailored output for every application

As standard, ZS4(VSD) is equipped with high‑efficiency IE4 motors that reduce electrical losses and deliver stable performance across demanding duty cycles—ensuring lower energy consumption, greater reliability, and long‑term efficiency

The newly designed air inlet optimizes airflow from the very first stage—reducing turbulence, stabilizing pressure, and lowering acoustic transmission for smoother, quieter, and more efficient operation

ZS4(VSD) features newly designed outlet silencers engineered to target dominant frequency bands—cutting tonal noise at the source and delivering a quieter, more stable operating environment without compromising airflow or efficiency

ZS4(VSD) features a repositioned blow‑off valve (BOV) for faster, safer access during inspection and replacement, while its advanced design enables operation from as low as 100 mbar—delivering reduced energy consumption, gentler material handling, and improved system reliability

The Mk5 controller on ZS4(VSD) helps customers optimize control while keeping operations simple

• Certified oil-free compression technology (Class 0 certified)

• Durably-coated rotors ensure optimal operational clearances

• Perfectly sized and timed inlet- and outlet port and rotor profile result in the lowest specific power consumption

• Tuned cool oil injection to bearings and gears maximizing the lifetime

• Highest full-load motor efficiency: no waste of energy in redundant copper losses

• Constant (high) Power Factor at partial load

• Liquid cooled housing improves efficiency, extends lifetime

• IP66 rated fully enclosed motor housing for operation in the harshest environmental conditions

• Integrated oil pump, directly driven with the blower element

• Oil injection nozzles spray the optimal amount of cooled and filtered oil to each bearing/gear

• Permanent Magnet motor housing is oil cooled enhancing its lifetime

• Motor-screw blower transmission over a heavy duty gearbox

• Low maintenance costs, no wearing components such as belts, pulleys…

• A gear transmission is stable over time, ensuring the promised unit energy level over its full life cycle

• User-friendly Elektronikon® Touch

• Advanced connectivity capabilities thanks to system process controller and/or Optimizer 4.0

• Included warning indications, maintenance scheduling and online visualization of the machine’s condition

• Integrated solution to maximize blower turndown at highest efficiency level

• In-house design: complete solution, improved control, guaranteed spare parts availability

• Trouble-free operation in harshest conditions: IP5X protection degree, aluminum enclosure protecting from dust and moisture

• Integrated start-up and safety valve: smooth start-up, ensured over-pressure protection

• Atlas Copco check-valve design: minimal pressure drop, ensured operation

• High-efficiency inlet filter (particles up to 3μ at a performance of 99.9% are filtered)

• Inlet baffle silencing with minimum pressure drop and high sound absorption characteristics

• Sealed canopy panels and doors

• Discharge pulsation damper attenuates dynamic pulsation levels in the air flow to the minimum

Optional canopy panels for outdoor operation

• Certified oil-free compression technology (Class 0 certified)

• Durably-coated rotors ensure optimal operational clearances

• Perfectly sized and timed inlet- and outlet port and rotor profile result in the lowest specific power consumption

• Tuned cool oil injection to bearings and gears maximizing the lifetime

• IE3 & Nema premium efficient motor

• TEFC for operation in the harshest environmental conditions

• Integrated oil pump, directly driven with the blower element

• Oil injection nozzles spray the optimal amount of cooled and filtered oil to each bearing/gear

• Motor-screw blower transmission over a heavy duty gearbox

• Low maintenance costs, no wearing components such as belts, pulleys…

• A gear transmission is stable over time, ensuring the promised unit energy level over its full life cycle

• User-friendly Elektronikon® Touch

• Advanced connectivity capabilities thanks to system process controller and/or Optimizer 4.0

• Included warning indications, maintenance scheduling and online visualization of the machine’s condition

• Integrated solution to maximize blower turndown at highest efficiency level

• In-house design: complete solution, improved control, guaranteed spare parts availability

• Trouble-free operation in harshest conditions: IP5X protection degree, aluminum enclosure protecting from dust and moisture

• Integrated start-up and safety valve: smooth start-up, ensured over-pressure protection

• Atlas Copco check-valve design: minimal pressure drop, ensured operation

• High-efficiency inlet filter (particles up to 3μ at a performance of 99.9% are filtered)

• Inlet baffle silencing with minimum pressure drop and high sound absorption characteristics

• Sealed canopy panels and doors

• Discharge pulsation damper attenuates dynamic pulsation levels in the air flow to the minimum

• Certified oil-free compression technology (Class 0 certified)

• Durably-coated rotors ensure optimal operational clearances

• Perfectly sized and timed inlet- and outlet port and rotor profile result in the lowest specific power consumption

• Tuned cool oil injection to bearings and gears maximizing the lifetime

• IE4 Efficiency rating

• Liquid-cooled housing improves efficiency and extends the lifetime

• IP66 rated, fully enclosed motor housing for operation in the harshest environmental conditions

• Integrated oil pump, directly driven by the drive shaft

• Oil injection nozzles spray the optimal amount of cooled and filtered oil to each bearing/gear

• Induction motor housing is oil cooled enhancing its lifetime

• Motor-screw blower transmission over a heavy duty gearbox

• Low maintenance costs, no wearing components such as belts, pulleys…

• A gear transmission is stable over time, ensuring the promised unit energy level over its full life cycle

• User-friendly Elektronikon® Touch

• Advanced connectivity capabilities thanks to system process controller and/or Optimizer 4.0

• Included warning indications, maintenance scheduling and online visualization of the machine’s condition

• Integrated solution to maximize blower turndown at highest efficiency level

• In-house design: complete solution, improved control, guaranteed spare parts availability

• Trouble-free operation in harshest conditions: IP5X protection degree, aluminum enclosure protecting from dust and moisture

• Integrated start-up and safety valve: smooth start-up, ensured over-pressure protection

• Atlas Copco check-valve design: minimal pressure drop, ensured operation

• High-efficiency inlet filter (particles up to 3μ at a performance of 99.9% are filtered)

• Inlet baffle silencing with minimum pressure drop and high sound absorption characteristics

• Sealed canopy panels and doors

• Discharge pulsation damper attenuates dynamic pulsation levels in the air flow to the minimum

• Twin configuration elements with De-phased rotor position for best efficiency and minimized pulsations

• Certified oil-free compression technology (Class 0 certified)
• Durably coated rotors ensure optimal operational clearances
• Perfectly sized and timed inlet-outlet ports and rotor profile result in the lowest specific power consumption
• Working pressure best suited for pneumatic conveying
• Tuned cool oil injection to bearings and gears maximizing the lifetime
• Unique optimised air path after compression

• IE4 efficiency rating

• Air cooled with improved efficiency and extended lifetime
• IP55 rated, fully enclosed motor housing for operation in the hardest environmental conditions

• Integrated Oil Pump, directly driven by drive shaft
• Oil Injection nozzles spray the optimal amount of cooled and filtered oil to each bearing/gear

• Motor screw blower transmission over a heavy duty gearbox including twin gear setup
• Low maintenance costs with long service interval, no wearing components such as belts, pulleys….
• A gear transmission is stable over time, ensuring the promised unit energy level over its full life cycle

• User friendly Elektronikon Touch

• Advanced connectivity capabilities thanks to system process controller and/or Optimizer 4.0
• Included warning indications, maintenance scheduling and online visualization of the machine’s condition

• Integrated solution to maximize blower turndown at highest efficiency level
• Optimized complete solution, Improved control and wide turn-down, guaranteed spare parts availability
• Trouble free operation in harshest conditions:IP55 protection degree, aluminum enclosure protecting from dust and moisture

• Integrated start-up and safety valve : smooth start-up,ensured over pressure protection
• Atlas Copco check valve design : Minimal pressure drop, ensured operation

• Efficient inlet filter which filters particles up to 3 micron at a performance of 99.9%
• No large particles entering the element enabling healthy operation

• Inlet baffle silencing with minimum pressure drop and high sound absorption characteristics
• Sealed canopy panels and doors
• Discharge pulsation damper attenuates dynamic pulsation levels in the air flow to the minimum

• In house collector design for optimized flow of compressed air from Twin elements with minimal pulsation