Principle of function

  • In a closed housing a piston is moving back- and forward. A food-safe silicon-oil can flow in both directions through small channels. The viscosity of the oil, as well as the the modification of the cross-section of the channels, leads to the friction needed to reduce the speed. The friction-heat will be channeled outside through the cylinder-wall.
  • Highest energy-consumption on smallest cross section
  • Different damping-characteristics possible

Fluid damper – Volume-compensation

  • A: Volume-compensation by means of a spring in an air-filled chamber (ZIMMER-principle)
  • B: Volume-adjustment by using a sponge (competitors)

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.


without reset- function


with integrated reset- function

FLUID DAMPER TYPES

defined: speed independent

smooth: depending on speedless opening time constant closing picture small opening force


Fluid damper Classic

The nozzle let the oil flow constantly:

 

  • Highest force on smallest space available
  • Force can be modified through the crosssection of the nozzle
  • No overload-protection

 

smooth: Smooth reaction at low velocities


Fluid damper Comfort

Oil is flowing around the piston. The housing is expanding at high pressure whereas through this gap the oil is flowing
 

  • overload-protection
  • different graphs possible
     

smooth: Smooth reaction at low velocities


Fluid damper Versatile

Through these two nozzles the oil can flow constantly. Channels in the housing enhances special cross-sections. Within this example the cross-section becomes smaller during retraction; thus the damping force becomes stronger
 

  • Various damper-characteristics possible
  • Force can be modified by varying the cross-section and by changing the number of the channels


smooth: Smooth reaction at low velocities

Fluid dampfer – Opening-movement

 

Valve disc as well as drillings lead to a minimalized resistance at opening and the damping force needed during closing-movement.

A: Piston defined
B: Piston smooth
C: Bunch-shaped drillings
(max. flow cross-section by means of elongated holes)


Comparsation defined/smooth in self- closing unit

 

ExampleCharacteristicChiuso 100
load:
70kg sliding door

chart shows the closing time  from 0,1–0,5 m/s in different graphs

Opening force is reduced about 30% in version: 
smooth


Fluid damper characteristic with constant speed

Product range damper Classic

  • Housing length (l) 42 mm bis 67 mm
  • Housing diameter (d) 6 mm, 8 mm und 10 mm
  • Stroke (s) 5 mm bis 30 mm
  • Piston rod diameter (k) 2,3 mm

Product range damper Comfort

  • Housing length (l) 29,5 mm bis 151,6 mm
  • Housing diameter (d) 6 mm, 8 mm und 10 mm
  • Stroke (s) 10 mm bis 100 mm
  • Piston rod diameter (k) 1,5 bis 2,3 mm

Product range damper Versatile

  • Housing length (l) 42 mm bis 67 mm
  • Housing diameter (d) 6 mm, 8 mm und 10 mm
  • Stroke (s) 5 mm bis 30 mm
  • Piston rod diameter (k) 2,3 mm