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D Series Air Bellows

DescriptionD Series Air Bellows

Series D Shock Absorbers and Actuators (DUNLOP)

TEVEMA offers D Series air bellows in single, double, and triple convolution configurations, matching the equivalents of Dunlop/Springride air bellows. Bead rings and bead plates are removable from the bellows. A key advantage is the ability to manufacture these air bellows with specialized elastomer and steel grades. For specialized applications, although standard metal parts include anti-corrosion protection, bead plates and rings can be made from stainless steel, commonly AISI-304. The rubber compounds we provide (refer to the characteristics of Chloroprene, Butyl, EPDM, Nitrile, etc.) allow the rubber actuator to adapt perfectly to the application’s environment.

Good to know

  • Rubber bellows and bead rings are available separately.
  • Angular capability: Up to 25% angular movement is achievable.
  • To understand the types of end closures used for each bellows reference, the following image illustrates the fixation methods listed in the general D Series table for each model.

D Series Air Bellows single Convolution Models​

SINGLE CONVOLUTION
 GENERAL CHARACTERISTICS AS ACTUATOR AS ISOLATOR
Ø MAX. [mm]
Min. HEIGHT [mm]
 End closure characteristics
Stroke [mm]
 FORCE AT 7 BAR [KN]
Design HEIGHT [mm]
Natural FREQUENCY AT 6 BAR [HZ]
Type a [mm] d [mm] Min. HEIGHT Max. HEIGHT
80 50 1 36 78 20 3 1 60 4.6
120 45 2 93 110 45 8 1 70 3.75
165 50 3 127 152 50 10.1 4.6 90 3.08
“ “ 4 “ 154 “ “ “ “ “
215 50 4 156 184 70 18 7.2 105 2.72
260 50 4 181 210 85 26 10.1 120 2.57
310 55 4 232 260 85 41.2 11.5 125 2.52
378 50 4 283 310 115 67 24.9 130 2.46
410 60 4 283 310 130 70 29.5 140 2.16

D Series Air Bellows Double Convolution Models

DOUBLE CONVOLUTION
 GENERAL CHARACTERISTICS AS ACTUATOR AS ISOLATOR
Ø MAX. [mm]
Min. HEIGHT [mm]
 End closure characteristics
Stroke [mm]
 FORCE AT 7 BAR [KN]
Design HEIGHT [mm]
Natural FREQUENCY AT 6 BAR [HZ]
Type a [mm] d [mm] Min. HEIGHT Max. HEIGHT
80 65 1 36 78 45 2.4 0.6 90 3.57
120 65 2 93 110 80 7 2 130 2.66
165 75 3 127 152 115 12.8 1.7 162 2.48
“ “ 4 “ 154 “ “ “ “ “
215 75 4 156 184 150 19.5 6 210 1.85
260 75 4 181 210 195 27.1 6.6 220 1.83
310 75 4 232 260 200 43 4.8 225 1.77
340 75 4 232 260 215 55 12 305 1.42
378 75 4 283 310 235 69 21 250 1.72
410 75 4 283 310 265 73 21 285 1.58
580 90 5 470 498 310 180 70 300 1.5
700 100 5 470 498 400 248 105 345 1.21
“ “ “ “ “ “ “ “ “ “
“ “ “ “ “ “ “ “ “ “

D Series Air Bellows Triple Convolution Models

TRIPLE CONVOLUTION GENERAL CHARACTERISTICS AS ACTUATOR AS ISOLATOR
Ø MAX. [mm] Min. HEIGHT [mm] End closure characteristics Stroke [mm] FORCE AT 7 BAR [KN] Design HEIGHT [mm] Natural FREQUENCY AT 6 BAR [HZ]
Type a [mm] d [mm] Min. HEIGHT Max. HEIGHT
80 80 1 36 78 60 2.6 0.8
120 85 2 93 110 105 6.2 2.6
165 100 3 127 152 170 12.1 2.7
“ “ 4 “ 154 “ “ “
215 110 4 156 184 225 18.8 5.8
260 100 4 181 210 280 31 5.7
310 100 4 232 260 300 44.4 14
378 100 4 283 310 375 70.4 27.2
410 125 4 283 310 375 75 20

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