C O L L A R S
Collars are tightness elements for axial movements in hydraulic and pneumatic applications. They are manufactured in different materials according to the customerīs necessities and covering a wide range of solutions for each working pressure.
When they are mounted, the collars tightness edges are made suitable for the sliding surface and for the bottom of the housing groove.
They are manufactured in different tightness lips according their assembly:
* Equal lips collars: for rods or pistons fittings-up.
* Lower interior lip collars: for rod fittings-up.
* Lower exterior lip collars: for pistons fittings-up.
In the main they are manufactured with the negative tightness lip (behind displacement) obtaining a bigger tightening.
We are able to supply them in nitrile or polyurethane, resisting pressures from 100 to 400 Bar.