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  3. Air springs (Rubber air springs / Membrane air springs)
  4. Series FAEBI®

Rubber air springs
Series FAEBI®

Rubber air spring insulator FAEBI®

  • Deflection characteristics can be adapted by adjusting the air pressure
  • Integrated damping, therefore separate damping is not necessary (low-maintenance)
  • No transmission of structure borne noise
  • Deflection characteristics can be adapted by adjusting the air pressure
  • Integrated damping, therefore separate damping is not necessary (low-maintenance)
  • No transmission of structure borne noise
Description
Technical data
Accessories
Solutions

General product description

Description

The regular FAEBI® element is available in many sizes and variants, depending on your application. Should you require assistance with the selection, please do not hesitate to contact us. You find your local contact person here.

Advantages compared to steel springs

In comparison to steel springs the use of air spring offers many advantages when used for vibration insulation:

  • Flexible insulation system design: Changes in the static or dynamic loads can be compensated for by adjusting the air pressure. This can be performed either manually or pneumatically (e.g. using Bilz level control)
  • Integrated damping, therefore separate damping is not necessary.
  • No transmission of structure borne noise

Technical Data and Variants

Variant selection

Please select a suitable rubber air spring so that the maximum load (sum of static and dynamic load) is not exceeded.
Hard FAEBI® variants reduce the deflection of the isolators in applications with high dynamics. The softer the isolator, however, the better the achievable isolating effect
Please get in touch, we would be happy to assist you in selecting the most suitable elements.

Notes on FAEBI® variants
  • If the bottom edge of the machine does not completely cover the diameter (∅ D) of the rubber air spring, we recommend the use of our special cover (see “Accessories” section for the individual air spring types).
  • Permissible temperature range: -20 °C to +60 °C
  • The elements are attached to the holes provided on the machine using the bolts supplied. Anchoring to the floor is usually not necessary.
  • Please bolt in by hand only, do not use a wrench! Please also fasten the corresponding nut with low torque only.
  • The machine is placed on the deflated element, which is then inflated in stages using the standard valve until dimension H (= working height) is reached. The maximum specified air pressure must also not be exceeded!
  • Ventilation and venting may only take place under load (please observe max. permissible pressure)!
  • Up to +/-5 mm are available for levelling.
Legende zu Abmessungen der Bilz Luftfedern Typenreihe Faebi 300

Legend for dimensions of Faebi® air springs

FAEBI® 50

FAEBI® 50

Load range:
100 – 600 N / isolator

Show variants
FAEBI® 50 type selection
Variant
item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Standard
item no. FAEBI
40-0071
Load N/Stk.
200-600
max. pressure bar
3
A mm
110
Ø D mm
85
H approx. mm = working height
60
H deflated mm
61
Ø d mm
35
h mm
5
G mm
M10
Variant
Standard + BR7-1
item no. FAEBI
40-0134
Load N/Stk.
200-500
max. pressure bar
2,5
A mm
110
Ø D mm
85
H approx. mm = working height
62
H deflated mm
68
Ø d mm
35
h mm
5
G mm
M10
Variant
Soft
item no. FAEBI
40-0072
Load N/Stk.
100-500
max. pressure bar
2,5
A mm
110
Ø D mm
85
H approx. mm = working height
60
H deflated mm
61
Ø d mm
35
h mm
5
G mm
M10
Variant
Soft + BR7-1
item no. FAEBI
40-0135
Load N/Stk.
100-450
max. pressure bar
2,3
A mm
110
Ø D mm
85
H approx. mm = working height
62
H deflated mm
68
Ø d mm
35
h mm
5
G mm
M10
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 50

Natural frequencies Faebi® 50
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 75

FAEBI® 75

Load range:
300 – 1.500 N / isolator

Show variants
FAEBI® 75 type selection
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Standard
Item no. FAEBI
40-0082
Load N/Stk.
400-1.500
max. pressure bar
3
A mm
115
Ø D mm
100
H approx. mm = working height
63
H deflated mm
67
Ø d mm
43
h mm
5
G mm
M12
Variant
Standard + BR7-1
Item no. FAEBI
40-0136
Load N/Stk.
400-1.350
max. pressure bar
2,7
A mm
115
Ø D mm
100
H approx. mm = working height
65
H deflated mm
74
Ø d mm
43
h mm
5
G mm
M12
Variant
Soft
Item no. FAEBI
40-0084
Load N/Stk.
350-1.300
max. pressure bar
2,6
A mm
115
Ø D mm
100
H approx. mm = working height
63
H deflated mm
67
Ø d mm
43
h mm
5
G mm
M12
Variant
Soft + BR7-1
Item no. FAEBI
40-0137
Load N/Stk.
350-1.200
max. pressure bar
2,4
A mm
115
Ø D mm
100
H approx. mm = working height
65
H deflated mm
74
Ø d mm
43
h mm
5
G mm
M12
Variant
Super Soft
Item no. FAEBI
40-0083
Load N/Stk.
300-1.050
max. pressure bar
2,1
A mm
115
Ø D mm
100
H approx. mm = working height
63
H deflated mm
67
Ø d mm
43
h mm
5
G mm
M12
Variant
Super Soft + BR7-1
Item no. FAEBI
40-0138
Load N/Stk.
300-1.050
max. pressure bar
2,1
A mm
115
Ø D mm
100
H approx. mm = working height
65
H deflated mm
74
Ø d mm
43
h mm
5
G mm
M12
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 75

Natural frequencies Faebi® 75
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 100

FAEBI® 100

Load range:
550 – 3.000 N / isolator

Show variants
FAEBI® 100 type selection
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Standard
Item no. FAEBI
40-0024
Load N/Stk.
750-3.000
max. pressure bar
5
A mm
135
Ø D mm
120
H approx. mm = working height
62
H deflated mm
65
Ø d mm
60
h mm
5
G mm
M12
Variant
Standard +BR7-1
Item no. FAEBI
40-0139
Load N/Stk.
750-3.000
max. pressure bar
5
A mm
135
Ø D mm
120
H approx. mm = working height
64
H deflated mm
72
Ø d mm
60
h mm
5
G mm
M12
Variant
Soft
Item no. FAEBI
40-0026
Load N/Stk.
600-2.600
max. pressure bar
4,4
A mm
135
Ø D mm
120
H approx. mm = working height
62
H deflated mm
65
Ø d mm
60
h mm
5
G mm
M12
Variant
Soft + BR7-1
Item no. FAEBI
40-0140
Load N/Stk.
600-2.600
max. pressure bar
4,4
A mm
135
Ø D mm
120
H approx. mm = working height
64
H deflated mm
72
Ø d mm
60
h mm
5
G mm
M12
Variant
Super Soft
Item no. FAEBI
40-0025
Load N/Stk.
550-2.400
max. pressure bar
4
A mm
135
Ø D mm
120
H approx. mm = working height
62
H deflated mm
65
Ø d mm
60
h mm
5
G mm
M12
Variant
Super Soft + BR7-1
Item no. FAEBI
40-0141
Load N/Stk.
550-2.400
max. pressure bar
4
A mm
135
Ø D mm
120
H approx. mm = working height
64
H deflated mm
72
Ø d mm
60
h mm
5
G mm
M12
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 100

Natural frequencies Faebi® 100
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 125

FAEBI® 125

Load range:
2.200 – 4.600 N / isolator

Show variants
FAEBI® 125 type selection
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Standard
Item no. FAEBI
40-0033
Load N/Stk.
2.600-4.600
max. pressure bar
5,5
A mm
165
Ø D mm
140
H approx. mm = working height
93
H deflated mm
98
Ø d mm
66
h mm
5
G mm
M16
Variant
Standard + BR7-1
Item no. FAEBI
40-0142
Load N/Stk.
2.600-4.600
max. pressure bar
5,5
A mm
165
Ø D mm
140
H approx. mm = working height
95
H deflated mm
105
Ø d mm
66
h mm
5
G mm
M16
Variant
Soft
Item no. FAEBI
40-0035
Load N/Stk.
2.400-4.050
max. pressure bar
4,9
A mm
165
Ø D mm
140
H approx. mm = working height
93
H deflated mm
98
Ø d mm
66
h mm
5
G mm
M16
Variant
Soft + BR7-1
Item no. FAEBI
40-0143
Load N/Stk.
2.400-4.050
max. pressure bar
4,9
A mm
165
Ø D mm
140
H approx. mm = working height
95
H deflated mm
105
Ø d mm
66
h mm
5
G mm
M16
Variant
Super Soft
Item no. FAEBI
40-0034
Load N/Stk.
2.200-3.500
max. pressure bar
4,2
A mm
165
Ø D mm
140
H approx. mm = working height
93
H deflated mm
98
Ø d mm
66
h mm
5
G mm
M16
Variant
Super Soft + BR7-1
Item no. FAEBI
40-0144
Load N/Stk.
2.200-3.500
max. pressure bar
4,2
A mm
165
Ø D mm
140
H approx. mm = working height
95
H deflated mm
105
Ø d mm
66
h mm
5
G mm
M16
Graph showing the natural frequency of Bilz air springs type series Faebi 125

Natural frequencies Faebi® 125
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 150

FAEBI® 150

Load range:
2.300 – 8.500 N / isolator

Show variants
FAEBI® 150 type selection
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Hart
Item no. FAEBI
40-0043
Load N/Stk.
2.600-8.500
max. pressure bar
6,4
A mm
200
Ø D mm
170
H approx. mm = working height
91
H deflated mm
96
Ø d mm
80
h mm
8
G mm
M16
Variant
Standard
Item no. FAEBI
40-0037
Load N/Stk.
2.500-8.000
max. pressure bar
6
A mm
200
Ø D mm
170
H approx. mm = working height
91
H deflated mm
96
Ø d mm
80
h mm
8
G mm
M16
Variant
Soft
Item no. FAEBI
40-0040
Load N/Stk.
2.400-7.000
max. pressure bar
5,3
A mm
200
Ø D mm
170
H approx. mm = working height
91
H deflated mm
96
Ø d mm
80
h mm
8
G mm
M16
Variant
Super Soft
Item no. FAEBI
40-0038
Load N/Stk.
2.300-6.500
max. pressure bar
4,9
A mm
200
Ø D mm
170
H approx. mm = working height
91
H deflated mm
96
Ø d mm
80
h mm
8
G mm
M16
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 150

Natural frequencies Faebi® 150
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 200

FAEBI® 200

Load range:
5.500 – 15.000 N / isolator

Show variants
FAEBI® 200 type select
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Hart
Item no. FAEBI
40-0051
Load N/Stk.
7.000-15.000
max. pressure bar
6
A mm
260
Ø D mm
236
H approx. mm = working height
91
H deflated mm
95
Ø d mm
130
h mm
8
G mm
M16
Variant
Standard
Item no. FAEBI
40-0046
Load N/Stk.
6.250-15.000
max. pressure bar
6
A mm
260
Ø D mm
236
H approx. mm = working height
91
H deflated mm
95
Ø d mm
130
h mm
8
G mm
M16
Variant
Soft
Item no. FAEBI
40-0048
Load N/Stk.
6.000-13.000
max. pressure bar
5,2
A mm
260
Ø D mm
236
H approx. mm = working height
91
H deflated mm
95
Ø d mm
130
h mm
8
G mm
M16
Variant
Super Soft
Item no. FAEBI
40-0047
Load N/Stk.
5.500-11.500
max. pressure bar
4,6
A mm
260
Ø D mm
236
H approx. mm = working height
91
H deflated mm
95
Ø d mm
130
h mm
8
G mm
M16
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 200

Natural frequencies Faebi® 200
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 300

FAEBI® 300

Load range:
10.500 – 28.000 N / isolator

Show variants
FAEBI® 300 type selection
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Hart
Item no. FAEBI
40-0058
Load N/Stk.
12.000-28.000
max. pressure bar
6,5
A mm
370
Ø D mm
340
H approx. mm = working height
89
H deflated mm
93
Ø d mm
200
h mm
8
G mm
M20
Variant
Standard
Item no. FAEBI
40-0055
Load N/Stk.
11.500-27.000
max. pressure bar
6
A mm
370
Ø D mm
340
H approx. mm = working height
89
H deflated mm
93
Ø d mm
200
h mm
8
G mm
M20
Variant
Soft
Item no. FAEBI
40-0056
Load N/Stk.
10.500-25.000
max. pressure bar
5,6
A mm
370
Ø D mm
340
H approx. mm = working height
89
H deflated mm
93
Ø d mm
200
h mm
8
G mm
M20
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 300

Natural frequencies Faebi® 300
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 430

FAEBI® 430

Load range:
27.500 – 66.000 N / isolator

Show variants
FAEBI® 430 type select
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Hart
Item no. FAEBI
40-0065
Load N/Stk.
30.000-66.000
max. pressure bar
6,1
A mm
500
Ø D mm
480
H approx. mm = working height
89
H deflated mm
94
Ø d mm
315
h mm
12
G mm
M20
Variant
Standard
Item no. FAEBI
40-0064
Load N/Stk.
27.500-65.000
max. pressure bar
6
A mm
500
Ø D mm
480
H approx. mm = working height
89
H deflated mm
94
Ø d mm
315
h mm
12
G mm
M20
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 430

Natural frequencies Faebi® 430
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

FAEBI® 580

FAEBI® 580

Load range:
51.500 – 120.000 N / isolator

Show variants
FAEBI® 580 type select
Variant
Item no. FAEBI
Load N/Stk.
max. pressure bar
A mm
Ø D mm
H approx. mm = working height
H deflated mm
Ø d mm
h mm
G mm
Variant
Super Hart
Item no. FAEBI
40-0079
Load N/Stk.
54.000-120.000
max. pressure bar
6,6
A mm
680
Ø D mm
650
H approx. mm = working height
89
H deflated mm
91
Ø d mm
380
h mm
14
G mm
M24
Variant
Hart
Item no. FAEBI
40-0078
Load N/Stk.
52.000-115.000
max. pressure bar
6,3
A mm
680
Ø D mm
650
H approx. mm = working height
89
H deflated mm
91
Ø d mm
380
h mm
14
G mm
M24
Variant
Standard
Item no. FAEBI
40-0076
Load N/Stk.
51.500-110.000
max. pressure bar
6
A mm
680
Ø D mm
650
H approx. mm = working height
89
H deflated mm
91
Ø d mm
380
h mm
14
G mm
M24
Grafik zur Darstellung der Eigenfrequenz von Bilz Luftfedern Typenreihe Faebi 580

Natural frequencies Faebi® 580
—
Vertikale Eigenfrequenz = vertical natural frequency
Last = load

Accessories FaEBI®

FAEBI® fixing bolts

Fixing bolts

  • The FAEBI® rubber air springs are attached to the existing holes in the machine using the bolts included in the scope of delivery (incl. one nut and one washer each). Anchoring to the floor is not usually necessary.
  • A large number of different bolts are available for the respective variants. We will be happy to advise you.
Show item numbers
Item numbers FAEBI® fixing bolts
Type
Item no.
Thread
Material
Length mm
Type
FAEBI 50
Item no.
19-0311
Thread
M10
Material
galvanised steel
Length mm
100
Type
FAEBI 75 / 100
Item no.
19-0322
Thread
M12
Material
galvanised steel
Length mm
100
Type
FAEBI 125 / 150 / 200
Item no.
19-0324
Thread
M16
Material
galvanised steel
Length mm
125
Type
FAEBI 300 / 430
Item no.
19-0327
Thread
M20
Material
galvanised steel
Length mm
150
Type
FAEBI 580
Item no.
19-0329
Thread
M24
Material
galvanised steel
Length mm
150

FAEBI® handpump

Handpump

Hand pump for manual air filling.
Item no. 40-0128

FAEBI® compressed air gun

Compressed air gun

Compressed air gun with pressure gauge for air filling via existing compressed air supply.
Item no. 40-0089

FAEBI® pressure control

Pressure control

The Bilz pressure control is the ideal addition to applications that do not need automatic level control.
Instead of filling the air springs manually, they are connected to a constant compressed air supply. The working height of the individual insulators can each be individually set with one pressure regulator.

Applications

  • Applications with a constant centre of gravity during the production/testing process (no moving machine components, workpieces, etc., steady masses).
  • Difficult to access systems, where the manual checking of air pressure in the air springs is impeded.


Advantages of FAEBI® pressure control

  • Simple and precise setting of the required pressure for each air spring or control group
  • Low maintenance
  • Manometer for continuous pressure indication
  • Upstream particle filter and water trapCan be configured for any number of air springs or control groups
Show item numbers
Item numbers FAEBI® pressure control
Pressure control
Item no.
Pressure control
3 Pressure regulators incl. pneumatic connection and hose set
Item no.
40-0179
Pressure control
4 Pressure regulators incl. pneumatic connection and hose set
Item no.
40-0180

FAEBI® mechanical pneumatic level control MPN-LCV

Mechanical pneumatic level control MPN-LCV

The mechanical pneumatic level control MPN-LCV with our robust LCV proportional valves is a simple but effective solution to prevent tilting as a result of load changes. The target level is adjusted by turning the knurled adjustment ring and is maintained with an accuracy of ± 1/10 mm.
Item no. 61-0103

FAEBI® protective cover

Protective cover

If the surface of the FAEBI® element is not completely covered by the bottom edge of the machine or the installation surface, an appropriate cover is required to ensure sufficient load distribution across the air spring. A hood will also provide protection from external damage.

Material
Steel sheet (primed black)

Show item numbers
Technical drawing, shows the legend for the dimensions of the cover for the Bilz Faebi air spring.

Legend dimensions protective cover FAEBI air spring

Item numbers FAEBI® protective cover
Type
Item no.
A mm
D mm
s mm
h mm
d mm
Type
AH-FAEBI® 50 / 75
Item no.
40-0013
A mm
13
D mm
115
s mm
5
h mm
40
d mm
2
Type
AH-FAEBI® 100
Item no.
40-0001
A mm
14
D mm
140
s mm
5
h mm
45
d mm
2
Type
AH-FAEBI® 125
Item no.
40-0003
A mm
18
D mm
160
s mm
5
h mm
60
d mm
2
Type
AH-FAEBI® 150
Item no.
40-0006
A mm
18
D mm
190
s mm
5
h mm
60
d mm
2
Type
AH-FAEBI® 200
Item no.
40-0007
A mm
18
D mm
255
s mm
5
h mm
60
d mm
3
Type
AH-FAEBI® 300
Item no.
40-0009
A mm
22
D mm
360
s mm
5
h mm
60
d mm
3
Type
AH-FAEBI® 430
Item no.
40-0012
A mm
22
D mm
500
s mm
10
h mm
60
d mm
4
Type
AH-FAEBI® 580
Item no.
40-0014
A mm
27
D mm
680
s mm
10
h mm
60
d mm
4

Solutions

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Please contact our responsible sales representative. We look forward to your inquiry and will get back to you as soon as possible!

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Bilz Vibration Technology AG
Böblinger Straße 25
D-71229 Leonberg

+49 7152 30 91-0 +49 7152 30 91-10 info@bilz.ag
Your expert for vibration isolation
© 2023 Bilz Vibration Technology AG

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Phone

+49 7152 30 91-0

Email

info@bilz.ag

Address

Bilz Vibration Technology AG
Böblinger Straße 25
D-71229 Leonberg

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