FD 138-18 DS ContiTech Double Convolution Air Actuator M/31082 Air Spring Shocks
Description of Norgren M/31082:
Norgren Imported M/31082 this kind of double Convoluted Air Spring which is produced by Norgren. It can replace bellows Number 8"X2 ; M/31082 air spring not only use in truck and trailer,but also as Vibratory conveyors,such as Large drying machines,Centrifugal separators,Coordinate measuring tables and machinery and Commercial laundry machines.
Sizes of Norgren M/31082:
❶Nut/blind nut
Top plate screw (nut) teeth: 4 X M10
Screw (nut) teeth of the bottom cover plate: 4 x M10
❷Air hole/air inlet/air fitting
Air hole/air inlet: G1 / 2
❸cover
Top plate diameter (width): 184 mm
Diameter of the bottom cover (width): 184 mm
Material top and bottom plate: steel
Bell rubber bellows
Maximum diameter at 7 bar: 225MM
Rubber bellows stroke: 75mm-225m
❺Bumper block/bumper block
No bumper
❻Belt loop/Belt loop
Attached belt: a belt
Type | Order No. |
Rubber bellows only | 66501 |
with dismountable plates, G1/2 air inlet | 66505 |
Min. pressure 0 bar
Return force to min height ≤ 300 N
Overall weight 3.5 kg
Vibration isolation – dynamic characteristic values Design height H: recommended 200mm, minimum 180mm | |||||||
Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] |
Force (Load) [kN] | 3.9 | 5.3 | 6.7 | 8.2 | 9.7 | 11.3 | |
Spring rate [N/mm] | 76 | 97 | 118.5 | 140 | 161 | 181.5 | 4.1 |
Natural frequency [Hz] | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.0 |
Pneumatic application – static characteristic values Force F [kN] | ||||||||
Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] | |
Height H [mm] | 220 | 2.9 | 4.03 | 5.16 | 6.41 | 7.65 | 8.98 | 4.3 |
200 | 3.86 | 5.27 | 6.68 | 8.21 | 9.73 | 11.3 | 4.1 | |
150 | 5.9 | 8 | 10.1 | 12.4 | 14.7 | 16.9 | 3.2 | |
100 | 8.2 | 10.9 | 13.7 | 16.6 | 19.4 | 22.4 | 2 |
Norgren M/31082 Technical parameters Medium:
Compressed air, without lubrication Working pressure: up to 8 bar Working temperature: -M / 31000 is 40 ° C to + 70 ° C. Important note: The construction of this air bellows enables operation at an angle of 5 ° to 25 ° Dietop and bottom plates may not be aligned depending on the height of the bellows and the number of turns.
To avoid damage, mechanical stops must be used in both end positions.In order to bring the air bellows back to its minimum height, an external restoring force must be applied.The thrust depends directly on the height of the bellows: with increasing height, the thrust decreases.Since the outside diameter changes during operation, there must be sufficient clearance around the air bellows.
Other Norgen air springs models:
Model | Nominal Ø (inch) x convolutions | Maximum stroke (mm) | Air Port size |
M/31021 | 2 3/4“ x 1 | 20 | G1/4 |
M/31022 | 2 3/4“ x 2 | 45 | G1/4 |
M/31023 | 2 3/4“ x 3 | 65 | G1/4 |
M/31041 | 4 1/2“ x 1 | 140 | G3/8 |
M/31042 | 4 1/2“ x 2 | 280 | G3/8 |
M/31061 | 6" x 1 | 155 | G1/2 |
M/31062 | 6" x 2 | 155 | G1/2 |
M/31081 | 8" x 1 | 95 | G3/4 |
M/31082 | 8" x 2 | 185 | G3/4 |
M/31091 | 9 1/4” x 1 | 105 | G3/4 |
M/31092 | 9 1/4“ x 1 | 230 | G3/4 |
M/31121 | 12" x 1 | 105 | G3/4 |
M/31122 | 12" x 2 | 215 | G3/4 |
M/31123 | 12" x 3 | 315 | G3/4 |