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  4. Vacuum Ejectors

Product catalogue

Vacuum Generators

Efficient vacuum generators – single or multi-stage, single-mounting or manifold-mounted systems

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JSY1000-E
NEW

JSY1000-E

  • Combination manifold for vacuum and positive pressure
  • Energy-saving function, air is supplied and exhausted intermittently when vacuum decreases
  • Fieldbus communications for both valves and ejectors that support fieldbus communication, EtherNet/IP, EtherCAT, IO-Link & PROFINET compatible
  • With pilot air control unit
  • Up to 24 stations combined as up to 12 valves and 12 ejectors.

ZHV
NEW

ZHV

  • Discharge flow rate up to 6820 l/min
  • Suction flow rate up to 5270 l/min with a vacuum pressure of -6 kPa
  • Fluid passage diameters [mm]: Ø 13, Ø 21.6, Ø 30 and Ø 42
  • Possibility to adjust the suction and discharge flow rate
  • Compact and lightweight design
  • Air-driven, maintenance-free.

ZK2*A

ZK2*A

  • Advanced vacuum unit (ejector/pump/manifold systems) with low noise and high efficiency options.
  • Energy saving digital vacuum switch: Intermittent energising (supply/exhaust) only when vacuum decreases.
  • More efficient 2-stage ejector: Air consumption 30% reduced.
  • Dual 2 port valve (release valve/supply valve): Can hold vacuum even when the power goes out or is turned off. Prevents the sudden dropping of workpieces.
  • All-in-one design with integrated components to make it compact and lightweight.
  • Control and monitor up to 32 outputs via a wide variety of serial interface communication protocols
    • EX260 Compatible protocols: IO-Link, DeviceNet, PROFIBUS DP, CC-Link, EtherNet/IP™, EtherCAT, PROFINET, Ethernet POWERLINK
    • EX500 Compatible protocols: Getaway decentralised system
    • EX600 Compatible protocols: DeviceNet, PROFIBUS DP, CC-Link, EtherNet/IP™, EtherCAT, PROFINET, wireless, compatible wireless base.
  • Retrofitting of vacuum sensor and manifold rail mounting bracket allowed.

JSY & ZK2*A

JSY & ZK2*A

  • Integrated manifold with centralised electrical wiring for vacuum ejectors and valves
  • Wide variety of serial interface communication protocols for remote batch setting/monitoring
  • Up to 28 stations, configurations combined with a maximum of 24 valves and 8 vacuum ejectors
  • High flow rate in a compact valve body: up to 567 l/min
  • Suction flow rate up to 67 l/min with a vacuum pressure of -91 kPa.

ZKJ

ZKJ

  • Combination manifold for vacuum and positive pressure
  • PROFINET, EtherNet/IP™, EtherCAT and IO-Link communication for remote batch setting/monitoring
  • Up to 16 ejectors in a single manifold
  • Energy saving function, with up to 90 % air consumption reduction
  • Suction flow rate up to 74 l/min with a vacuum pressure of -89 kPa
  • Prevents work pieces from dropping suddenly when the power goes out or is turned off
  • Exhaust sealing function for the quick release of workpieces
  • IP65 enclosure and M12 connector.

ZL1/3/6

ZL1/3/6

  • Energy-saving, large flow rate, 3-stage diffuser construction ejector
  • Energy saving function selectable, with reduction of up to 90%
  • Suction flow rate up to 600 l/min, increased by 250% compared to one-stage ejectors
  • Supply valve/release valve combinations
  • Exhaust specifications: built-in silencer (standard), port exhaust
  • Vacuum pressure sensor options: digital vacuum pressure switch, vacuum pressure gauge, vacuum adapter
  • All-in-one design with integrated components to make it compact and lightweight.

ZQ*A

ZQ*A

  • Energy-saving function, with up to 90% air consumption reduction
  • Compact and lightweight solution, 10 mm width and weight as low as 60 g
  • Suction flow rate up to 22 l/min with a vacuum pressure of -80 kPa
  • Reduced power consumption: 0.4 W
  • Vacuum release pressure from 0 MPa
  • Copy function for up to 10 units.

ZU*A

ZU*A

  • In-line type vacuum ejector. Compact and lightweight
  • Suction flow rate up to 16 l/min
  • Maximum vacuum pressure: -90 kPA
  • Nozzle diameters: 0.3, 0.4, 0.5 and 0.7 mm
  • Piping variations. Oval type one-touch fittings: Ø 4 and 6 mm. Screw-in connections: Rc 1/8.

ZH*A

ZH*A

  • Body ported type/ Box type vacuum ejector. Compact and lightweight
  • Suction flow rate up to 155 l/min
  • Nozzle diameters: 0.5, 0.7, 1, 1.3, 1.5, 1.8 and 2 mm
  • Multiple piping variations: One-touch fittings and screw-in connections (G/Rc/NPT)
  • 4 mounting types: direct, standard bracket, L-bracket or DIN rail.

ZH**-X267, Vacuum Ejector, All Stainless Steel

ZH**-X267, Vacuum Ejector, All Stainless Steel

  • All stainless steel (SCS13: Equivalent to stainless steel 304).
  • Sealant not required.
  • Maximum operating temperature: 260°C.
  • Grease-free.

ZB

ZB

Requests for a vacuum unit with fast workpiece absorption and improved transfer application performance have now been answered with the launch of our new compact vacuum ejector and pump unit - Series ZB. Developed initially for wafer and chip transfer applications, Series ZB is around 25% smaller than our alternative vacuum units and it´s also considerably lighter – at only 46g for a single unit without sensor. Thanks to these reductions in size and weight, the ZB unit can now be mounted directly onto a machine´s moving component and as close as possible to the transfer workpiece - dramatically improving the vacuum absorption performance. Series ZB has also been constructed with separate vacuum and pressure paths which effectively reduce the chance of dust collecting in the filter element being discharged into the surrounding atmposphere via the units exhaust. Additional ZB features and options include a supply valve with latching specifications, a digital vacuum switch, with copy function, where up to 10 switches can be set simultaneously thereby saving installation time and potentially annoying individual input setting mistakes and the use of simple one-touch-fittings to connect a suction filter and silencer.

ZM

ZM

The ZM series is an all-in-one vacuum generator, complete with internal suction filter, exhaust silencer, supply and break valve, and vacuum switch. Its dual-stage nozzle design increases suction flow by 40% over single-stage generators, yet its compact size makes it suitable for many different applications. ZM series generators also boast a strong vacuum break pressure for quick cycle times. Available in standalone or manifold configurations.

ZX

ZX

This product is being discontinued and will be replaced by ZK2-A series.
The ZX is a single-stage vacuum generator. The modular design allows the user to choose only the components needed for the application. The ZX is available with a combination of generator unit, supply/release valve unit, pressure switch unit, and suction filter unit. Order without the generator unit for use as a filter and valve assembly for house vacuum systems. Special function plates allow the use of shop air to create the vacuum, and nitrogen for the blow-off. Available in standalone or manifold configurations.

ZR

ZR

The larger ZR is a single-stage vacuum generator. The modular design allows the user to choose only the components needed for the application. The ZR is available with a combination of generator unit, supply/release valve unit, pressure switch unit, and suction filter unit. Order without the generator unit for use as a filter and valve assembly for house vacuum systems. Special function plates allow the use of shop air to create the vacuum, and nitrogen for the blow-off. Available in standalone or manifold configurations.

ZK2

ZK2

  • This product is being discontinued and will be replaced by ZK2-A series.
  • Advanced vacuum unit (ejector/pump/manifold systems) with low noise and high efficiency options.
  • Energy-saving digital vacuum switch: Intermittent energizing (supply/exhaust) only when vacuum decreases.
  • More efficient 2-stage ejector: Air consumption 30 % reduced.
  • Dual 2 port valve (release valve/supply valve): Supply valve with self-holding function. Interlink between supply valve and release valve.
  • All-in-one design with integrated components to make it compact and lightweight.

ZL

ZL

  • This product is being discontinued and will be replaced by ZL1/3/6 series
  • Energy-saving, large flow rate, 3-stage diffuser construction ejector
  • Suction flow rate up to 200 l/min, increased by 250% compared to one-stage ejectors
  • Supply valve/release valve combinations
  • Exhaust specifications: built-in silencer (standard), port exhaust
  • Vacuum pressure sensor options: digital vacuum pressure switch, vacuum pressure gauge, vacuum adapter
  • All-in-one design with integrated components to make it compact and lightweight.

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Types of vacuum generators

Vacuum generators can be classified according to three main criteria:

  • Number of vacuum stages
  • Vacuum generation principle
  • Mounting configuration

Single-stage and multi-stage vacuum generators

Depending on performance requirements, a vacuum generator can be designed as single-stage or multi-stage.

  • Single-stage generators create vacuum in one step. They offer a simple and compact solution, suitable for standard applications with moderate vacuum requirements.
  • Multi-stage generators increase vacuum progressively through multiple stages. This allows higher vacuum levels and improved efficiency, even at lower supply pressures.

Multi-stage technology is particularly useful when higher suction performance is required without increasing compressed air consumption.

Venturi-based vacuum generators

Most vacuum generators operate according to the Venturi principle, based on Bernoulli’s law. When compressed air flows through a narrowed nozzle, its velocity increases and pressure decreases, creating a low-pressure area that generates suction.

Venturi vacuum generators are suitable for the 80% of industrial applications thanks to their simple design, reliability and flexibility.

For very specific applications, such as handling delicate or highly porous materials, alternative vacuum technologies (such as contactless vacuum grippers) may be considered.

Single and manifold-mounted vacuum generators

Vacuum generators are available in two main mounting configurations:

  • Single mounting generators are ideal when a single vacuum point is required. They offer a cost-effective and straightforward solution.
  • Manifold-mounted generators are designed for systems where multiple vacuum units must be centrally controlled. This configuration optimizes space and simplifies wiring and communication.

SMC also provides hybrid vacuum units integrating valves and vacuum generation into a single compact module. These systems support centralized control through industrial communication protocols, including IO-Link, making them suitable for advanced automation environments.

Typical applications of vacuum generators

Vacuum generators are extremely versatile and are commonly used in:

  • Handling systems with low to medium vacuum flow requirements
  • Point-to-point gripping applications
  • Decentralized vacuum systems without a central vacuum pump

Advantages of vacuum generators compared to other vacuum systems

Compared to other vacuum systems, generators offer several benefits:

  • Maintenance-free operation: No moving or rotating parts
  • Flexible installation: Can be installed directly at the point of use
  • Fast vacuum generation: Rapid response time
  • Compact and lightweight design: Ideal for decentralized systems
  • No heat generation
  • Integrated energy-saving functions : Optimized compressed air consumption
  • Built-in monitoring and control options

These features make vacuum generators particularly suitable for modern automated machinery.

How to select the right vacuum generator?

Selecting the appropriate vacuum generator requires careful evaluation of the application parameters:

1. Nozzle and diffuser design

The nozzle diameter directly influences performance:

  • A smaller nozzle diameter generates higher vacuum levels but lower suction flow.
  • A larger nozzle diameter provides higher suction flow but lower maximum vacuum level.

The correct balance depends on whether the application prioritizes gripping force (vacuum level) or evacuation speed (flow rate).

2. Required suction flow and vacuum level

Define clearly:

  • The required suction flow (air volume)
  • The target vacuum level
  • The desired response time

Pipe diameter and installation layout also influence how quickly the system reaches the target vacuum level.

3. Leakage considerations

Leaks caused by porous, uneven, or irregular workpieces can significantly affect performance.

  • Use a vacuum generator with higher suction capacity
  • Avoid excessively high vacuum levels
  • Optimize suction cup selection

Proper sizing ensures stable operation and prevents unnecessary compressed air consumption.