BELLOWS AIRSPRINGS
Further Information:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: airsprings@interflex.co.uk
Dismountable bellows
Bellows 2"¾ .............................
Bellows 4"½ .............................
Bellows 6" ................................
Bellows 8" ................................
Bellows 9"¼ .............................
Bellows 10" ..............................
Bellows 12" ..............................
Bellows 14"½ ...........................
Bellows 16" ..............................
Bellows 21"½ ...........................
Bellows 26" ..............................
Crimped bellows
(does exist in stainless steel version)
Bellows 8" ................................
Bellows 9"¼ .............................
Bellows 12" ..............................
Further Information:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel: +44 (0)1584 878500 • Email: airsprings@interflex.co.uk
GEOMETRIC CHARACTERISTICS
* : Value for recommanded height for better isolation at pressure 6 bar
ØMax : Maximun diameter H.min : minimum height S.xxxxxx : crimped version
Øe : Overall diameter H.design : Design height
nf : Natural frequency H.Max : maximum height
ØMax Øe Stroke Height H (mm) Load (daN) at 6 bar nf * Stiffness* Weight
(mm) (mm) (mm)
min. design Max. H.min. H
.design
H.Max. (Hz)
(daN/mm) (kg)
ØMax Øe Stroke Height H (mm) Load (daN) at 6 bar nf * Stiffness* Weight
(mm) (mm) (mm)
min. design Max. H.min. H
.design
H.Max. (Hz)
(daN/mm) (kg)
2"
¾x1
Composite
80 95 20 50 60 70 260 173 92 4.60 133.7 0.22
2"¾x1
Aluminium
80 95 20 50 60 70 260 173 92 4.60 133.7 0.35
4"½x1
Aluminium
125 140 40 50 70 90 550 355 140 3.71 184.9 0.75
6"x1
Composite
175 190 55 55 80 110 1140 755 330 3.33 272.2 0.95
6"x1
175 190 55 55 80 110 1140 755 330 3.33 272.2 1.9
6"x1
175 190 55 50 75 105 1095 710 290 3.30 249.0 2.2
8"x1 230 245 80 50 90 130 1860 1275 535 2.77 342.1 3.0
S.8"x1
225 240 95 60 105 155 1630 1210 460 2.47 265.3 1.8
S.9"¼x1 255 275 105 55 105 160 1960 1560 825 2.17 281.4 2.3
10"x1
280 300 100 50 100 150 2645 1960 900 2.46 385 3.9
12"x1 330 350 100 50 100 150 3885 2975 1510 2.44 588 5.4
S.12"x1
335 360 105 60 110 165 3900 2950 1385 2.26 530 3.9
14"½x1
395 425 125 50 110 175 5760 4555 2155 2.22 784 7.1
2"¾x2
Composite
80 95 45 65 90 110 213 139 54 3.60 72.5 0.26
2"¾x2
Aluminium
80 95 45 65 90 110 213 139 54 3.60 72.5 0.40
4"½x2
Aluminium
125 140 85 65 100 150 575 400 170 2.62 71.4 0.95
6"
x2
Composite
175 190 115 80 140 195 1060 685 340 2.25 114.0 1.3
6"x2
Aluminium
175 190 115 80 140 195 1060 685 340 2.25 114.0 2.2
6"
x2
175 190 115 75 140 190 1040 635 320 2.25 116.9 2.6
8"x2 220 245 175 75 160 250 1765 1140 445 1.95 128.1 3.7
S
.8"x2
22
0
24
0
18
5
80
17
5
26
5
16
50
10
50
39
5
1.
89
12
5.
1 2.
5
9"¼x2
255 270 205 75 160 280 2315 1730 745 1.72 150.4 5.5
S
.9¼x2 NB
255 275 220 80 175 300 2015 1380 490 1.65 120.6 2.8
S.9¼x2 ANB 265 285 290 80 260 370 2790 1475 705 1.51 118 3.1
10"x2
270 300 225 75 170 300 2635 1900 645 1.75 178.8 4.9
GEOMETRIC CHARACTERISTICS
* : Value for recommanded height for better isolation at pressure 6 bar
ØMax : Maximun diameter H.min : minimum height S.xxxxxx : crimped version
Øe : Overall diameter H.design : Design height
nf : Natural frequency H.Max : maximum height
ØMax Øe Stroke Height H (mm) Load (daN) at 6 bar nf * Stiffness* Weight
(mm) (mm) (mm)
min. design Max. H.min. H
.design
H.Max. (Hz)
(daN/mm) (kg)
ØMax Øe Stroke Height H (mm) Load (daN) at 6 bar nf * Stiffness* Weight
(mm) (mm) (mm)
min. design Max. H.min. H
.design
H.Max. (Hz)
(daN/mm) (kg)
12"
x2
325 350 225 75 170 300 3850 2910 855 1.78 285 6.7
S.12"x2
325 350 215 85 190 300 3580 2800 1175 1.68 276 5.3
12"x2 NB
325 350 225 75 170 300 3905 2905 930 1.76 277 6.2
S.12"x2ANB
345 370 265 80 270 345 4310 2060 975 1.59 243 5.0
12"x2 ANB
345 370 325 75 270 400 4590 2790 1295 1.45 205 6.9
14"½x2
400 425 265 75 200 340 6195 4445 1690 1.61 373 8.9
14"½x2 Re
390 425 230 90 200 320 5585 4025 1680 1.66 370 9.4
16"x2
440 460 315 75 200 390 6525 5195 2020 1.44 323 9.5
16"x2 Re
430 460 300 90 200 390 6255 5040 1745 1.48 339 10.1
21"½x2
580 630 280 90 200 370 14150 11690 5345 1.50 756 21.0
26"x2
700 750 410 90 200 500 20370 17335 8445 1.23 792 23.7
2"¾x3
Composite
80 95 60 80 110 140 230 157 70 3.12 50.7 0.3
2"¾x3
Aluminium
80 95 60 80 110 140 230 157 70 3.12 50.7 0.5
4"½x3
Aluminium
125 140 100 100 145 200 535 375 230 1.96 36.8 1.2
6"x3
Aluminium
175 190 190 100 190 290 1055 725 295 1.85 77.3 2.6
6"x3 175 190 190 95 190 285 1045 690 280 1.85 75.5 2.8
8"x3
215 240 250 100 230 350 1740 1075 465 1.60 85.1 4.4
10"x3 270 300 330 100 250 430 2660 1770 645 1.43 110 5.9
10"
x3 Re
27
0
30
0
30
0
12
0
25
0
42
0
25
85
17
40
68
5
1.
46
10
7
6.
3
12"x3
325 350 330 100 250 430 4060 2930 1090 1.44 189 8.1
S
.12"x3
325 350 345 120 265 465 3810 2700 660 1.42 178 7.0
12"x3 NB
335 360 335 100 250 450 4165 2950 985 1.41 178 7.5
12"x3 Re
325 350 300 120 250 420 4145 3065 1130 1.48 273 8.6
12"x3ReNB
325 350 320 120 250 440 3885 2860 855 1.48 187 7.6
S
.12"x3RNB
325 350 315 105 265 420 3825 2505 955 1.44 174 7.0
14"½x3
400 425 380 100 290 480 6255 4320 1920 1.31 233 10.5
14"½x3 Re
390 420 330 120 290 450 5715 4090 1940 1.37 254 11.4
16"x3 Re
425 450 430 120 290 550 6495 5145 1905 1.24 244 12.5
SPRINGRIDE
®
convoluted bellows have been manufactured since
1960 by
DUNLOP AIRSPRINGS
.
They are used in industry as rubber actuators or vibration isolators
for various applications :
- Lifting,
- Locking device,
- Shock absorber,
- Isolation of vibrating machines,
- Etc.
SPRINGRIDE
®
convoluted bellows are used in most industrial fields,
from the smallest lift tables to the largest paper machines, including
applications as varied as irrigation systems, garage equipment and childrens
roundabouts.
Thanks to a policy of permanent innovation and with one of the largest
existing ranges of dismountable and crimped convoluted bellows, from 2"
¾ x 1 to 26" x 2, DUNLOP AIRSPRINGS is leader in the European Industrial
Market.
As a result of the most demanding quality and reliability requirements,
SPRINGRIDE
®
air bellows are also employed in the Automotive (air
suspensions for industrial vehicles, trucks, trailors and buses) and Railway
industries (air suspensions for underground trains and pantographs lifts).
SPRINGRIDE
®
rubber actuators, compared with traditional products
(rigid actuators, spring...) offer numerous advantages such as :
- Flexibility (no angle or alignment problem),
- Compactness,
- Power / price ratio,
- No maintenance
or lubrication required,
- Durability,
- Reliability,
- Resistance to aggressive or hot conditions.
2
VIBRATING BIN HOPPER
OSCILLA
TE CONVEYOR
ISOLATORS
The current standard range of
SPRINGRIDE
®
convoluted rubber
bellows is shown.
Most of the range can be easily supplied with various options (such as
different air inlets, specific fixings, etc.)
The main technical characteristics of each rubber bellows are indicated
in order to identify easily and quickly the best product to meet specific
requirements.
can also supply a choice of specific
compounds in order to meet the requirements involved for applications in
severe environments (resistance to hydrocarbons, high temperatures, etc.).
EXAMPLES OF APPLICATIONS
Further Information:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel: +44 (0)1584 878500 • Email: airsprings@interflex.co.uk
SPRINGRIDE
QUICK LOCK DEVICE
T
ABLE LIFTER
CLAMP DEVICE
BUMPER AND ACTUATOR
LEVEL PLATFORMS
WEBB TENSIONING DEVICE
EXAMPLES OF APPLICATIONS
ACTUATORS
IMPORTANT :
The information contained in this document was determined from real situation tests and measures which were carried out in a
laboratory. This information should help to guide our customers in defining the best solution for its application and was subject to
validation at the time when the present document was published. However, DUNLOP AIRSPRINGS reserves the right to change or
modify this information without prior notice.
Extract from general terms of sale
:
" The acquisition, marketing or the use of DUNLOP merchandise imply the knowledge of and compliance with their characteristics and
with the conditions of their implementation.
It is the responsability of customers to be perfectly informed of these characteristics, to take these characteristics into consideration
and to ensure the passing on of this information to users. No modification can be brought to DUNLOP merchandise which are
intended to be resold or used in their present state.
The liability of DUNLOP cannot be incurred in the event of an unsuitable and/or abnormal installation or use of the said products."
PRECAUTIONS IN USE
- Airsprings must not be pressurised unless they are restricted by an outside frame or by a
suitable load.
- Strokes must be limited by the direct use of bump stops or external stops.
- When stacking airsprings, special care must be taken to ensure the airsprings are guided
and fixed.
- An Airspring is a single acting air actuator and must not be used below atmospheric pres-
sure.
- Please check the over-pressure in case of rapid compression.
TEMPERATURE
According to the temperature conditions, the rubber compound must be chosen as follows :
STANDARD : - 40°C to + 70°C
BUTYL : - 25°C to + 90°C
EPICHLORE : - 20°C to + 115°C
ENVIRONMENT
Some products such as acids or hydrocarbons may cause problems to the air bellows. The
resistance of air bellows depends on the compound. Epichlorohydrin, for the instance, is the
best with hydrocarbons. A special treatments is available to increase the resistance against
ozone and U.V.
In any case, please contact our technical sales department.
Further Information:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: airsprings@interflex.co.uk
Further Information:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: airsprings@interflex.co.uk
