Bellows actuator EB
Bellows actuator EB
Key features
Key features
Bellows actuators function both as
driving and pneumatic spring com­
ponents. Bellows actuators function
as a driving component by providing
supply and exhaust functions. As the
stroke increases, the force generated
is reduced in relation to the
EB-80
EB-145 … 385
1
1
6
2
2
3
4
4
Prerequisites for using a bellows actuator
Space required
hmin
hmax
Combined installation
de
Lateral offset
The max. lateral offset must not be
exceeded.
When using two or more bellows
actuators, the necessary mounting
plates must be inserted between the
cylinders to prevent a lateral break
out.
Tilted installation
smax
Minimum height
The max. tilt angle á must not be
exceeded to ensure that the bellows
walls cannot touch.
Maximum height
The bellows actuator must not fall
below a min. height, otherwise it will
be damaged.
2
Pneumatic connection
Mounting thread
Port plate, on top
Bellows
Port plate, underneath
Belt ring
5
5
Observe the installation space to
ensure the bellows actuator does not
come into contact with other machine
parts during expansion.
1
2
3
4
5
6
bellows. There are no sealing compon­
ents and no moving mechanical parts.
Bellows actuators are single-acting
drives that do not require spring
returns, as the reset is achieved by the
application of external force.
hmax
3
contractional force of the bellows.
When bellows actuators are supplied
with permanent pressure, they act as
a cushioning component. The simple
design consists of two metal port
plates with an attached rubber
hmin
Suitable for use in harsh, dusty
ambient conditions
Can be used under water
Sturdy design
Large forces range from 1 … 50 KN
Low installation height
No stick-slip effect
Maintenance-free
The bellows actuator must not exceed
a max. height, otherwise it will be
damaged.
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Subject to change – 2016/03
Bellows actuator EB
Product range overview and type codes
Product range overview
Function
Feature
Singleacting
Type
Single-bellows
actuator
Double-bellows
actuator
1)
Stroke
Thrust1)
[mm]
[kN]
Recommended operat­
ing height
[mm]
80
20
1.7
60
145
165
215
250
325
385
80
60
65
80
85
95
115
45
3.2
5.7
8.3
11.9
21.8
31.6
1.4
90
90
110
110
130
145
90
145
165
215
250
325
385
100
125
155
185
215
230
2.4
3.8
8.0
10.7
20.6
31.5
160
175
190
210
240
250
Size
At recommended operating height and operating pressure of 6 bar
Type codes
EB
—
250
—
85
Type
Single-acting
EB
Bellows
Size
Stroke [mm]
2016/03 – Subject to change
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3
Bellows actuator EB
Technical data
Function
-N-T-
Diameter
80 … 385 mm
Stroke length
20 … 230 mm
General technical data
Size
80
145
165
215
250
325
385
G¼
Gx
G¼
G¾
G¾
G¼
G¼
20
60
45
100
Single-acting
Via internal thread
Any
65
125
80
155
85
185
95
215
115
230
Operating and environmental conditions
Size
80
165
215
250
325
385
Operating medium
Note on the operating/control medium1)
Operating pressure
[bar]
Ambient temperature
[°C]
Corrosion resistance class CRC2)
Compressed air to ISO 8573-1:2010 [–:–:4]
Lubricated operation not possible
0…8
–40 … +70
0
2
Pneumatic port
Stroke
Single-bellows actuator
Double-bellows actuator
Mode of operation
Type of mounting
Mounting position
1)
2)
[mm]
[mm]
145
Additional operating media on request
Corrosion resistance class CRC 0 to Festo standard FN 940070
No corrosion stress. Applies to small, optically irrelevant standard parts such as threaded pins, circlips and clamping sleeves which are usually only available in a phosphated or burnished version (and possibly oiled)
as well as to ball bearings (for components < CRC 3) and plain bearings.
Corrosion resistance class CRC 2 to Festo standard FN 940070
Moderate corrosion stress. Indoor applications in which condensation may occur. External visible parts with primarily decorative requirements for the surface and which are in direct contact with the ambient atmo­
sphere typical for industrial applications.
Weight [g]
Size
80
145
165
215
250
325
385
Single-bellows actuator
Double-bellows actuator
500
500
900
1100
1200
1500
2000
2300
2300
3000
4100
4800
5900
6900
4
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Subject to change – 2016/03
Bellows actuator EB
Technical data
Materials
Sectional view
EB-80
3
EB-145 … 385
4
Size
3
80
3
Housing
4
–
Bellows
Note on materials
145
165
4
215
250
325
385
Die-cast
Galvanised steel
aluminium
CR
NR/BR
Free of copper and PTFE
RoHS-compliant
Forces [N]
Size
80
145
165
214
250
325
385
Single-bellows actuator
Force/stroke characteristics
Resetting force
è6
400
120
200
200
200
300
300
Double-bellows actuator
Force/stroke characteristics
Resetting force
è8
200
200
200
200
200
300
400
-H-
Note
Bellows actuators may only be
driven against a workpiece, or they
must be equipped with stroke
limiting stops at the stroke ends,
because the bellows walls would
otherwise be overloaded or internal
damage could occur.
2016/03 – Subject to change
A resetting force is required to
press the bellows actuator together
to its minimum height. As a rule,
this is achieved through the weight
force
The entire bearing surfaces of the
upper and lower plates must be
utilised to absorb forces
Bellows actuators must be
exhausted before disassembly
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The walls of bellows actuators must
not come into contact with other
parts during operation
5
Bellows actuator EB
Technical data
Thrust F and bellows volume V as a function of the stroke length H
Single-bellows actuator
EB-80-20
Hmin
EB-145-60
H1
H [mm]
E
H1
E
H1
E
Hmax
H [mm]
EB-215-80
Hmin
Recommended operating
height for cushioning
application at 6 bar
Volume
1 bar
2 bar
6
Hmin
Hmax
EB-165-65
H1
H1
Hmax
length. The minimum installation
height Hmin must be observed to fully
reach the indicated forces.
Hmin
The diagram illustrates the change in
thrust F with various working
pressures and differing bellows
volumes V in relation to the stroke
H1
H [mm]
Hmin
Hmax
E
Hmax
Hmin
Hmax
H [mm]
Min. installation height
Max. extended height
3 bar
4 bar
5 bar
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E
Preferred range of application:
Outside this range, the force reduces
to a level so that the use of the next
largest size is recommended.
6 bar
7 bar
8 bar
Subject to change – 2016/03
Bellows actuator EB
Technical data
Thrust F and bellows volume V as a function of the stroke length H
H1
Hmax
length. The minimum installation
height Hmin must be observed to fully
reach the indicated forces.
Hmin
The diagram illustrates the change in
thrust F with various working
pressures and differing bellows
volumes V in relation to the stroke
Single-bellows actuator
EB-250-85
EB-325-95
Hmin
H1
E
Hmax
Hmin
H1
H [mm]
H [mm]
E
Hmax
EB-385-115
Hmin
H1
E Hmax
H [mm]
H1
Recommended operating
height for cushioning
application at 6 bar
Volume
1 bar
2 bar
2016/03 – Subject to change
Hmin
Hmax
Min. installation height
Max. extended height
3 bar
4 bar
5 bar
E
Preferred range of application:
Outside this range, the force reduces
to a level so that the use of the next
largest size is recommended.
6 bar
7 bar
8 bar
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7
Bellows actuator EB
Technical data
Thrust F and bellows volume V as a function of the stroke length H
H1
Hmax
length. The minimum installation
height Hmin must be observed to fully
reach the indicated forces.
Hmin
The diagram illustrates the change in
thrust F with various working
pressures and differing bellows
volumes V in relation to the stroke
Double-bellows actuator
EB-80-45
EB-145-100
Hmin
H1
E
Hmin
Hmax
EB-165-125
EB-215-155
Hmin
H1
Recommended operating
height for cushioning
application at 6 bar
Volume
1 bar
2 bar
8
H1 Hmax
E
H [mm]
H [mm]
H1
E
H [mm]
Hmin
Hmax
Hmin
Hmax
Min. installation height
Max. extended height
3 bar
4 bar
5 bar
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H1
H [mm]
E
E
Hmax
Preferred range of application:
Outside this range, the force reduces
to a level so that the use of the next
largest size is recommended.
6 bar
7 bar
8 bar
Subject to change – 2016/03
Bellows actuator EB
Technical data
Thrust F and bellows volume V as a function of the stroke length H
H1
Hmax
length. The minimum installation
height Hmin must be observed to fully
reach the indicated forces.
Hmin
The diagram illustrates the change in
thrust F with various working
pressures and differing bellows
volumes V in relation to the stroke
Double-bellows actuator
EB-250-185
EB-325-215
Hmin
H1
E
H [mm]
Hmax
Hmin
H1
H [mm]
E
Hmax
EB-385-230
Hmin
H1
H [mm]
H1
Recommended operating
height for cushioning
application at 6 bar
Volume
1 bar
2 bar
2016/03 – Subject to change
Hmin
Hmax
E
Hmax
Min. installation height
Max. extended height
3 bar
4 bar
5 bar
E
Preferred range of application:
Outside this range, the force reduces
to a level so that the use of the next
largest size is recommended.
6 bar
7 bar
8 bar
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9
Bellows actuator EB
Technical data
Download CAD data è www.festo.com
Dimensions
Single-bellows actuator – EB-80
Max. offset between mounting
surfaces:
smax
hmin
hmax
The stroke of the bellows actuator
can be made to carry out a circular
path, in which case the indicated tilt
angle á must not be exceeded.
During setup it must be ensured that
the minimum height Hmin is
observed, and that the maximum
height Hmax is not exceeded at any
given point.
1 Fastening thread
2 Supply port
3 Required installation space
4 Recommended operating
height
5 Min. installation height
6 Max. extended height
Type
B1
D1

max.
D2

D3

D4
EE
EB-80-20
36
80
95
78
M6
G¼
Type
H1
H2
H3
T1
smax
Min.
Max.
Min.
Tilt angle
á
max.
EB-80-20
60
50
70
8
5
10°
10
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Subject to change – 2016/03
Bellows actuator EB
Technical data
Download CAD data è www.festo.com
Dimensions
Single-bellows actuator – EB-145 … 385
EB-145
EB-165, EB-215
EB-250, EB-325
EB-385
Max. offset between mounting
surfaces:
smax
hmin
hmax
The stroke of the bellows actuator
can be made to carry out a circular
path, in which case the indicated tilt
angle á must not be exceeded.
During setup it must be ensured that
the minimum height Hmin is
observed, and that the maximum
height Hmax is not exceeded at any
given point.
1 Fastening thread
2 Supply port
3 Required installation space
Type
EB-145-60
EB-165-65
EB-215-80
EB-250-85
EB-325-95
EB-385-115
4 Recommended operating
height
5 Min. installation height
6 Max. extended height
B1
D2

±0.2
D1

max.
20
44.5
70
89
157.5
158.8
145
165
215
250
325
385
160
180
230
265
340
400
Type
H1
EB-145-60
EB-165-65
EB-215-80
EB-250-85
EB-325-95
EB-385-115
90
90
110
110
130
145
2016/03 – Subject to change
D3

D4
EE
F1
±0.2
90
108
141
161
228
287
M8
M8
M8
M8
M8
M8
H2
H3
T1
Min.
Max.
Min.
50
51
50
51
51
51
110
115
135
140
150
175
15
15
15
15
15
15
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Gx
G¼
G¾
G¾
G¼
G¼
–
0
0
38.1
73
79.4
smax
Tilt angle
á
max.
10
10
10
10
10
10
20°
20°
20°
20°
15°
15°
11
Bellows actuator EB
Technical data
Download CAD data è www.festo.com
Dimensions
Double-bellows actuator – EB-80
Max. offset between mounting
surfaces:
smax
hmin
hmax
The stroke of the bellows actuator
can be made to carry out a circular
path, in which case the indicated tilt
angle á must not be exceeded.
During setup it must be ensured that
the minimum height Hmin is
observed, and that the maximum
height Hmax is not exceeded at any
given point.
1 Fastening thread
2 Supply port
3 Required installation space
4 Recommended operating
height
5 Min. installation height
6 Max. extended height
Type
B1
D1

max.
D2

D3

D4
EE
EB-80-45
36
80
95
78
M6
G¼
Type
H1
H2
H3
T1
smax
Min.
Max.
Min.
Tilt angle
á
max.
65
110
8
10
15°
EB-80-45
12
90
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Subject to change – 2016/03
Bellows actuator EB
Technical data
Download CAD data è www.festo.com
Dimensions
Double-bellows actuator – EB-145 … 385
EB-145
EB-165, EB-215
EB-250, EB-325
EB-385
Max. offset between mounting
surfaces:
smax
hmin
hmax
The stroke of the bellows actuator
can be made to carry out a circular
path, in which case the indicated tilt
angle á must not be exceeded.
During setup it must be ensured that
the minimum height Hmin is
observed, and that the maximum
height Hmax is not exceeded at any
given point.
1 Fastening thread
2 Supply port
3 Required installation space
Type
EB-145-100
EB-165-125
EB-215-155
EB-250-185
EB-325-215
EB-385-230
4 Recommended operating
height
5 Min. installation height
B1
D2

D3

D4
EE
±0.2
D1

max.
20
44.5
70
89
157.5
158.8
145
165
215
250
325
385
160
180
230
265
340
400
90
108
141
161
228
287
M8
M8
M8
M8
M8
M8
Gx
G¼
G¾
G¾
G¼
G¼
Type
H1
EB-145-100
EB-165-125
EB-215-155
EB-250-185
EB-325-215
EB-385-230
160
175
190
210
240
250
2016/03 – Subject to change
6 Max. extended height
F1
±0.2
H2
H3
T1
Min.
Max.
Min.
70
72
75
75
75
77
170
200
230
275
305
310
15
15
15
15
15
15
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–
0
0
38.1
73
79.4
smax
Tilt angle
á
max.
20
20
20
20
20
20
30°
30°
30°
25°
20°
20°
13
Bellows actuator EB
Technical data
Ordering data
Type
Size
Stroke
[mm]
Part No.
Type
80
20
2748903
EB-80-20
145
165
215
250
325
385
60
65
80
85
95
115
36486
36487
36488
36489
193788
193789
EB-145-60
EB-165-65
EB-215-80
EB-250-85
EB-325-95
EB-385-115
80
45
2748904
EB-80-45
145
165
215
250
325
385
100
125
155
185
215
230
36490
36491
36492
36493
193790
193791
EB-145-100
EB-165-125
EB-215-155
EB-250-185
EB-325-215
EB-385-230
Single-bellows actuator
Double-bellows actuator
14
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Subject to change – 2016/03
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