Festo EB Benutzerhandbuch
Seite 3
EB
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany
+49 711 347-0
www.festo.com
Operating instructions
8026783
1401c
[8026784]
Original: de
Bellows actuator EB
English
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note
Installation and commissioning is to be carried out only by qualified personnel.
1
Control sections and connections
1
2
3
4
6
5
1
2
3
4
5
1
Pneumatic port
2
Mounting thread
3
Sub-base, on top
4
Bellows
5
Sub-base, underneath
6
Belt ring
Fig. 1
2
Function and application
The bellows actuator is intended to be used as a drive or cushioning component.
– Bellows actuators function as a driving component through pressurization and
exhaust.
As the stroke increases, the force generated is reduced – possibly dependent on
the constriction of the bellows. Resetting takes place through external applica-
tion of force.
– Through permanent pressurization, the bellows actuator works as a cushioning
component.
The bellows actuator consists of the sub-bases 3 and 5 with an integrated bel-
lows 4. There are no sealing components and no moving mechanical parts.
3
Transport and storage
• Take into account the weight of the EB.
Depending on the design, the EB weighs up to 6.9 kg.
• When storing the product, avoid
– direct sunlight
– temperatures below 15 °C or above 25 °C
– air humidity above 70 %
– climatic influences, e.g. through draughts
– nearby ozone-generating equipment, such as electric motors, welding sys-
tems or photocopiers
• Store the product free of tension and without deformation – preferably upright.
• In addition, observe the general requirements for storage of the product to
ISO 2230 “Rubber Products – Guidelines for Storage”.
4
Requirements for product use
Note
Incorrect handling can result in malfunctions.
• Make sure that the specifications contained in this chapter are adhered to at
all times. This is the only way to ensure correct and safe product behaviour.
• Take into consideration the legal regulations applicable for the destination as
well as:
– regulations and standards
– regulations of the testing organizations and insurers
– national specifications.
• Remove all transport packaging, such as plastic sheets, caps and cartons (ex-
cept for any covers in the pneumatic ports).
The packaging is intended for recycling.
• Use the product in its original status, without any unauthorised product modific-
ations.
• Take into consideration the ambient conditions at the location of use.
The bellows actuator is not permanently resistant to solvent, hydraulic fluids
based on mineral oil and phosphate esters, lubricating oils, lubricating greases,
metal chips and hot metal.
Corrosive environments (e.g. ozone) will reduce the service life of the product.
• Compare the limit values specified in these operating instructions with your
actual application (e.g. pressures, forces, torques, temperatures, loads).
Operation of the product in compliance with the relevant safety regulations is
contingent on adherence to the load limits.
• Make sure the compressed air is properly prepared (without aggressive media
10 Technical data).
• Maintain the selected medium for the total service life of the product. Example:
Always use non-lubricated compressed air.
• Slowly pressurize the system as a whole.
There will then be no uncontrolled movements.
5
Installation
• Inspect the bellows actuator for damage prior to installation.
• Inspect the environment of the installation location.
• Make sure that the entire bearing surface of the bellows actuator is used for
reception of the dynamic and static forces. The opposite surface must be
smooth and flat.
5.1 Installation, mechanical
Through an appropriate installation environment (e.g. stroke limiters, spacers), the
stroke of the bellows actuator is limited.
Warning
Danger of injury due to separating sub-bases.
• Make sure that the bellows actuator does not exceed the maximum height
h
max
. Example Fig. 2.
Fig. 2
Note
Damage through jamming of the bellows actuator.
• Make sure that the bellows actuator does not drop below the minimum height
h
min
. ExampleFig. 3.
Fig. 3
Space required
The bellows actuator must not come into contact with other machine parts at any
time.
• Make sure that, at the installation
location, there is sufficient space
for expansion of the bellows actuat-
or across the entire stroke range
10 Technical data.
h
min
h
max
d
E
Fig. 4