Festo EB Benutzerhandbuch
Seite 4
Lateral offset
Lateral offset increases the required installation space.
• Make sure that the max.
lateral offset is not
exceeded
10 Technical data.
s
max
Fig. 5
Tilted installation
The bellows walls may not rub against each other at any time.
• Make sure that the max.
tilt angle is not
exceeded
10 Technical data.
h
min
h
max
Fig. 6
Combined installation
The direction stability of connected bellows actuators is not guaranteed.
• In case of combined
installation of two or
more bellows actuators,
make sure that the
resistance to bending is
secured through
suitable design
measures.
Fig. 7
To attach the bellows actuator:
• Tighten the connectors alternately and, if necessary, diagonally opposite with a
torque spanner (tightening torque
10 Technical data).
5.2 Installation, pneumatic
3. Connect the bellows actuator EB via the pneumatic port 1.
To set the stroke speed:
• Screw a one-way flow control valve into the compressed air supply port.
6
Commissioning
Warning
Damage to the bellows actuator.
• Place the bellows actuator under pressure only with height stop.
• Make sure that the maximum operating pressure of 8 bar is not exceeded.
6.1 Preparation for commissioning
Warning
Injury to people, damage to the machine and system.
• Make sure that, in the travel range,
– nobody can reach into the path of the movable components (e.g. by provid-
ing a protective guard)
– there are no foreign objects.
It should not be possible to grasp the EB until the mass has come to a complete
rest.
6.2 Commissioning the complete system
• Slowly pressurize the system as a whole.
In this way you will prevent sudden uncontrolled movements.
7
Maintenance and care
• Check the bellows actuator regularly for cracks, bubbles, brittleness or other
external damage. Replace the bellows actuator, if necessary.
7.1 Cleaning
1. When necessary, clean the bellows actuator with a soft cloth and one of the
following cleansers:
– commercially available alkaline cleaners
– diluted caustic soda
– water with ammonia.
2. Then rinse the cleanser away with clear water.
Note
• Avoid the use of cleansers based on aliphatic or aromatic hydrocarbons, such
as kerosene, cleaning benzine, benzole, cellulose thinner, etc.
• Alternatively, use a steam jet or high-pressure cleaner.
– maximum pressure: 90 bar
– minimum distance: 20 cm
8
Repair
Repair of the bellows actuator is not possible.
9
Fault clearance
Malfunction
Possible cause
Remedy
Bellows actuator does not
move
No drive medium available
Inspect connection
Cracks or abrasion up to the
reinforcement
Mechanical or age-related wear or
corrosive environment
Replacement of the
bellows actuator
Advanced bellows actuator
does not retract
Resetting force too low
Increase resetting
force
Fig. 8
10
Technical data
Size
80
145
165
215
250
325
385
Mode of operation
– as drive: Single-acting
– as cushioning component: Double-acting
Mounting position
any
Mounting thread at
sub-base, on top 3
2x M6
1x M8
2x M8
4xM8
sub-base, underneath5
2x M6
2x M8
4xM8
Max. tightening torque for
mounting thread 2
[Nm]
5
25
Operating medium
Compressed air to ISO 8573-1:2010 [–:–:4]
Operating pressure
[bar]
0 … 8
Pneumatic port
G1/4
G1/8
G1/4
G3/4
G1/4
Max. tightening torque for
pneumatic port 1
[Nm]
15
25
50
25
Ambient temperature
[°C]
–40 … +70
Environmental restrictions
Not permanently resistant to:
– solvent
– hydraulic fluids based on mineral oil and phosphate
ester
– lubricating oils
– lubricating greases
– metal chips
– hot metal
Storage conditions
Temperature
[°C]
+15 … +25 - no direct sunlight
Max. air humidity
[%]
70
Materials
Sub-bases
Die-
cast
alu-
mini-
um
Galvanised steel, CR VI-free
Bellows
CR
NR/BR
Fig. 9
Single-bellows actuator EB-
80
-20
145
-60
165
-65
215
-80
250
-85
325-
95
385
-115
Max. resetting force F
R
[N]
400
120
200
300
Mounting
Min. installation diameter d
E
[mm]
95
160
180
230
265
340
400
Min. height h
min
[mm]
50
51
50
51
Max. height h
max
[mm]
70
110
115
135
140
150
175
Max. lateral offset S
vmax
[mm]
5
10
Max. tilt angle á
[°]
10
20
15
Fig. 10
Double-bellows actuator EB-
80
-45
145
-100
165
-125
215
-155
250
-185
325
-215
385
-230
Max. resetting force F
R
[N]
200
300
400
Mounting
Min. installation diameter d
E
[mm]
95
160
180
230
265
340
400
Min. height h
min
[mm]
65
70
72
75
77
Max. height h
max
[mm]
110
170
200
230
275
305
310
Max. lateral offset S
vmax
[mm]
10
20
Max. tilt angle á
[°]
15
30
25
20
Fig. 11