Vacuum Unit ZK2 Series Vacuum Ejector Vacuum Pump System Energy saving ejector Digital pressure switch for vacuum with energy saving function cuts supply air when the pressure reached the desired vacuum. ∗Based on SMC’s measuring conditions More efficient ejector Suction flow (Compared to other SMC single stage ejectors) Two-stage ejector First ejector Second ejector Compact / Lightweight Volume Reduced-wiring D-sub connector/Flat ribbon cable/Individual wiring % reduction % reduction Current product High-noise reduction silencer added Low noise: 46 dB∗1(A) Suction flow rate: Improved by up to approx. 20%∗2 ∗1 Nozzle size: ø0.7 ∗2 Nozzle size: ø1.5 (Based on SMC’s measuring conditions) High-noise reduction

Vacuum Unit ZK2 Series Energy saving ejector Digital pressure switch with energy saving function Digital pressure switch reduces air consumption by 90% ∗. ∗Based on SMC’s measuring conditions for vacuum with energy While the suction signal is ON, the ON/OFF operation of the supply valve is also performed automatically within the set value. Energy saving ejector Current product saving function Supply valve signal Current product ON OFF Energy saving ON control OFF Vacuum port pressure Atmospheric pressure Exhaust Exhaust Air is supplied and exhausted Vacuum intermittently when the vacuum decreases....

Vacuum Unit ZK2 Series Piping Wiring Installation time reduced!! Dual 2 port valve (Release valve/Supply valve) Pressure sensor/switch  Supply valve: Self-holding Even if there is a power cut, the vacuum is maintained as long as there is supply air. q The vacuum is maintained during power failure as long as air is supplied. This can prevent the workpiece from being dropped. w The unit turns on by instantaneous energizing (minimum 20 ms.). Continuous energizing is not necessary. This can reduce the power consumption.  Linked supply and release valves operation The self-holding type supply valve...

Vacuum Unit ZK2 Series Vacuum Unit Variations Vacuum Ejector Vacuum Pump System Single Unit Variations Nozzle size Vacuum switch Vacuum pressure supply (PV) port • Pressure sensor • Pressure switch for vacuum • Pressure switch for vacuum Air pressure supply (PV) port with energy saving function • Without vacuum switch Combination of supply valve and release valve Vacuum break flow adjusting needle Supply valve Release valve Round lock nut type Self-holding release valve linked Screwdriver operation type Supply valve/Release valve: Rated voltage Pilot pressure supply (PS) port With individual...

Vacuum Unit

Vacuum Unit How to Order Single Unit Refer to page 64 for How to Order Manifold. With Valve Without Valve Symbol Note 4) Only non-locking type is available for the manual override for “K, J, R”. Note 5) Self-holding type maintains vacuum by instantaneous energization (20 ms or more). Stopping the vacuum turns on the release valve. (signal to stop vacuum not needed) Note 6) When the digital pressure switch for vacuum with energy saving function is selected, select “K” for essure Switch for Vacuum Specifications. © e Sensor/Digital Pressure Switch for Vacuum Specifications Pressure sensor Pressure...

Ejector System Vacuum Unit ZK2 Series * PV: Air pressure supply port/Port for vacuum source (Vacuum pump) * PS: Pilot pressure supply port • PD: Individual release pressure supply port * V: Vacuum port * EXH: Exhaust port * PE: Pilot pressure exhaust port For details ^ Page 79 Note 17) Supply port (PV) size of single unit: 06 (mm), o1/4" (inch) Note 11) Solenoid valve with light/surge voltage suppressor Note 12) Standard lead wire length for solenoid valve is 300 mm. Note 13) For lead wire lengths other than standard, select “L1 or L3”, and order the connector assembly with desired length. (Refer...

Vacuum Unit Vacuum Pump System Refer to page 64 for How to Order Manifold. How to Order Single Unit Vacuum Pump System w Combination of Supply Valve and Release Valve q System/Body Type Symbol Exhaust type Supply valve Self-holding release valve linked Release valve Supply valve Release valve Body type Remains blank when no option is selected. Single unit Vacuum pump system Note 1) PS port size of pump system: mm: ø4 inch: ø5/32" Note 2) Only non-locking type is available for the manual override for “K, J, R”. Note 3) When “J” is selected for vacuum pump system, install a release valve or vacuum...

Vacuum Pump System Vacuum Unit ZK2 Series * PV: Air pressure supply port/Port for vacuum source (Vacuum pump) * PS: Pilot pressure supply port • PD: Individual release pressure supply port * V: Vacuum port * EXH: Exhaust port * PE: Pilot pressure exhaust port For details ^ Page 79 © Supply Valve/Release Valve/Digital Pressure Switch for Vacuum Connector Specifications Note 8) Solenoid valve with light/surge voltage suppressor Note 9) Standard lead wire length for solenoid valve is 300 mm. Note 10) For lead wire lengths other than standard, select “L1 or L3”, and order the connector assembly with...

Q Stations Note 11 ZZK2 How to Order Manifold w tem (Port combination) N Note 1) In the case of an ejector, for an adequate performance, the number of stations when operated simultaneously depends on the nozzle diameter. (Refer to Maximum Number of Manifold Stations that Can Operate Simultaneously on page 67.) Note 2) Refer to pages 73 to 79 for the port layout of standard port combinations and options. Note 3) Common PS port and common Pd port are connected inside. Connect One-touch fitting to one of ports so that piping becomes easier. (Connected to PS port initially) Note 4) Common PV = Common...

Note 11) When more than one option is selected, list the option symbols in an alphabetical order. Example) -BD Note 12) DIN rail should be ordered separately. (Refer to page 82.) Note 13) When “-D” is selected for the manifold model number, select “-P” for © Optional Specifications for the ejector system single unit model number and © Optional Specifications for the vacuum pump system single unit model number. Refer to pages 73 to 79 for port layout. Note 14) When “-L (individual supply)” is selected for © Optional Specifications for the single unit model number, specify “-L” for manifold, too....