Principle of function
- In a sealed housing there is a piston which is moving back- and forward. By means of the pressure-difference which results within the closing-movement the sealing-lip will be pressed against the breaking-collar. This breaking-collar expand and presses the cylinder in which it moves. Thus the friction-energy is generated.
- No oil-leakage possible
- Friction force is reated to the pressure
![](/fileadmin/_processed_/7/2/csm_daempfer_luft_funktionsprinzip_7d870f34b0.png)
Damper with and whitout reset-function
Damper without reset-function needs a coupler onto the pistonrod is needed to be used within the fitting. The pistonrod do not extract by itself, it has to be extracted manually
Damper with a integrated reset-function a Coupler is not needed onto the pistonrod within the fitting. The pistonrod will be extracted automatically
![](/fileadmin/_processed_/f/2/csm_daempfer_ohne_rueckstellung_a966f7799d.png)
without reset- function
![](/fileadmin/_processed_/4/8/csm_daempfer_mit_rueckstellung_c38a0a2f25.png)
with integrated reset- function
Graph air friction damper in self-closing units
Characteristic curve Air friction damper
Phase 1: sharp breakage
Phase 2: short stop,returning point
Phase 3: dampened moving-in
Phase 4: unit closed
![](/fileadmin/daten/technologien-komponenten/DT/Softclose/kennlinie-luftdaempfer-sez_en.png)
Product range Air- friction damper
- Housing length (l) 56 mm bis 164 mm
- Housing diameter (d) 9 mm bis 16,6 mm
- Stroke (s) 19 mm bis 110 mm
![](/fileadmin/_processed_/4/c/csm_diagramm_range_luftdaempfer_1c90c3d13d.png)