Datasheet

Example of Application Circuit
Caution
Handling of application circuits
1. Countermeasures for power outages
Select a supply valve for the ejector
that is normally open or one that is
equipped with a self-holding function.
2. Using a small-diameter picking nozzle
For picking electronic parts or small
precision parts, if the picking nozzle is
approximately ø1 mm in diameter, the
vacuum remains high by being restricted
by the nozzle. As a result, it will not be
possible to verify it with the vacuum
switch. In such a case, it is necessary to
use an ejector that is suited to the nozzle
and to select a vacuum switch with a
favorable hysteresis and precision.
3. Considerable leakage from the
suction surface
If a workpiece is made of porous material
or if there is air leakage from the area
between the pad and the workpiece, use
a nozzle with a large diameter and a
large suction flow volume.
If the amount of leakage is known based
on the effective sectional area of the side
with the leakage, the vacuum pressure
can be estimated in accordance with the
ejector’s flow volume characteristics.
4. Suction filter
To protect the ejectors and valves from
dust, the use of a suction filter (Series
ZFA, ZFB) is recommended.
5. Use of a vacuum switch
It is recommended that verification be
made with a vacuum switch as much as
possible.
6. Vacuum release valve
To serve as a vacuum release valve,
use a 2 port or 3 port valve. As for the
performance of the valve, select a valve
for a low vacuum. In addition, add a
needle valve that can regulate the flow
volume of the vacuum releasing air.
Use the atmospheric pressure or a
positive pressure for the vacuum
releasing pressure.
Basic Type
(a) Full system (b) 3 port valve selection
(c) Switching on the vacuum side (d) Centralized exhaust type
Diagrams (a) to (d) show the combination with peripherals.
Exhaust pipe with enough capability
EXH
Series ZH
Vacuum Ejector:
Box Type (Built-in Silencer)/Body Ported Type
13-5-9
ZX
ZR
ZM
ZH
ZU
ZL
ZY
ZQ
ZF
ZP
ZCU
AMJ
Misc.