FD 330-22 327 Contitech Air Spring Double Convoluted 1/4NPT Rubber Industrial

Contitech FD 330-22 327 Double Convoluted 1/4NPT Rubber Industrial Air Spring

Cross Reference

Contitech:FD330-22 327

Contitech:FD 330-22 327

Contitech:FD330 22 327

Continental: FD 330-22 327

Continental: FD 330 22 327

2B7424 specifications and Tecnical Parameters  

1. Nut/blind nut Top plate screw (nut) teeth: 2 x 1/2-13UNC

    Top plate screw center distance : 157.5 mm

2. Bottom cover plate screw (nut) teeth: 2 x 1/2-13UNC

    Bottom plate screw center distance : 157.5 mm
2. Air hole/air inlet/air fitting air hole/air inlet: 1/4NPT

    Screw Center Distance Between Gas Hole and Nut : 73mm
3. Top plate diameter (width): 231mm, bottom cover diameter (width): 231 mm 

4. Rubber bellows natural diameter: 298mm

    Rubber bellows Max. diameter: 325mm

5. Min height: 81mm

    Max. height: 305mm

6. Bumper block/bumper block without bumper
7. Belt loop/belt loop/girdle hoop: with one piece of belt loop/girdle hoop

Min. pressure: 0 bar

Return force to min.height: ≤300N

Overall weight with clamped plates: 5.1kg

Vibration isolation - dynamic characteristic values

Design Height H: recommended 240mm, minimum 220mm

Pneumatic application-static characteristic values

Force F[KN]

How rubber air springs work

When the rubber air spring works, the inner cavity is filled with compressed air to form a compressed air column. With the increase of the vibration load, the height of the spring decreases, the volume of the inner cavity decreases, the stiffness of the rubber spring increases, the effective bearing area of the inner cavity air column increases, and the bearing capacity of the rubber spring increases. When the vibration load decreases, the height of the rubber spring increases, the inner cavity volume increases, the stiffness of the rubber spring decreases, the effective bearing area of the inner cavity air column decreases, and the bearing capacity of the rubber spring decreases. In this way, within the effective stroke of the air spring, the height, inner cavity volume and bearing capacity of the air spring have a smooth and flexible transmission with the increase and decrease of the vibration load, and the high-efficiency control of the amplitude and vibration load. The stiffness and bearing capacity of the spring can also be adjusted by increasing or decreasing the air volume, and an auxiliary air chamber can also be attached to realize automatic adjustment.

The related picture of 2B7424 air spring