FD 70-13 Contitech Suspension Air Spring G1/4 Air Fitting Pneumatic
Bellows Actuators
Cross reference
Contitech FD 70-13
Contitech FD 70 13
Contitech FD 70-13 CI
Contitech FD 70 13 CI
Contitech FD 70-13 CI G1/4
Contitech FD 70 13 CI G1/4
Specifications and Tecnical Parameters
1. Nut/blind nut Top plate screw (nut) teeth: 2 x M8X1.25
Top plate screw center distance: 44.5 mm
2. Bottom cover plate screw (nut) teeth: 2 xM8X1.25
Bottom plate screw center distance : 44.5 mm
2. Air hole/air inlet/air fitting air hole/air inlet: G1/4
Air hole place: Middle
3. Top plate diameter (width): 105 mm, bottom cover diameter
(width): 105 mm bell-shaped rubber bellows rubber bellows diameter:
146 mm
4. Bumper block/bumper block without bumper
5. Belt loop/belt loop with belt loop: with one piece of belt loop
Min. pressure: 0bar
Return force to min.height: ≤200N
Overall weight with clamped plates: 1.5kg
Vibration isloation-dynamic characteristic values
Design height H: recommended 175mm, minimum 160mm
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] |
| Force (Load) [KN] | 1.9 | 2.5 | 3.5 | 3.8 | 4.5 | 5.2 | 1.8 |
| Spring rate [N/mm] | 46 | 59.5 | 73 | 86 | 99.5 | 112.5 |
| Natural frequency [Hz] | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.4 |
Pneumatic application-static characteristic values
Force F[KN]
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] |
| Height H[mm] | 180 | 1.6 | 2.3 | 2.9 | 3.5 | 4.1 | 4.7 | 1.8 |
| 160 | 2.4 | 3.15 | 3.9 | 4.7 | 5.6 | 6.4 | 1.6 |
| 140 | 2.9 | 3.88 | 4.8 | 5.8 | 6.8 | 7.8 | 1.5 |
| 120 | 3.4 | 4.5 | 5.7 | 6.8 | 7.9 | 9.2 | 1.3 |
| 100 | 3.9 | 5.23 | 6.5 | 7.8 | 9.1 | 10.4 | 1.1 |
| 80 | 4.3 | 5.7 | 7.1 | 8.5 | 10 | 11.4 | 0.7 |
Anti-Resonance Application of Rubber Air Spring in Shakeout Machine
It is a convenient and reasonable method to use the clamping force
(expansion force) of the air spring to control and prevent
resonance, and its clamping force is superior to other
anti-resonance methods, such as rubber damping blocks, steel spring
dampers, etc. .
Install air springs on both sides of the body of the inertia
vibration shakeout machine, and then use compressed air as the
internal pressure. During normal vibration shakeout or shakeout
conveying, the pressure decreases and decompresses. When the
shakeout machine stops and shuts down, the internal pressure
suddenly increases and maintains A certain pressure will form the
expansion and clamping effect on both sides, so that the resonance
phenomenon will be reduced to a minimum value until the machine
stops. Similarly, when the shakeout machine is started, the
internal pressure is moderately increased, and the clamping force
is maintained at a small state. After a few seconds, the shakeout
work tends to be normal.
The picture
