The contact wheel FAPI–PA FREQUENCY DAMPED is the addition to the milled model. Here grooves are milled into the para rubber coating in a special groove width-groove depth-web width-relationship developed by us. The howling sounds in the upper frequency range generated when grinding are damped in the contact wheel’s coating, are deadened in the grooves, through this new milling method, so that they are no longer audible to the human ear.
While in practice a coating height of 20 mm has established itself as the standard, the coating height is variable as desired. The higher the coating, the more elastic and therefore the contact wheel surface will be.
The milled grooves make the contact wheels especially aggressive in use. The contact wheel’s aggressiveness can be optimised for every application also for the frequency damped milled contact wheel with an individually optimised groove width-groove depth-web width-relationship to make high performance possible. Like all contact wheels of the PA–series, this model also stands out because of its long service life.

Advantages
The contact wheels of the FAPI-PA – series are coated only with para rubber. The para rubber (PA) coated contact wheels are in practice often simply called “rubber coated contact wheels” or rubber contact wheels.
Benefits of contact wheels with this design:
- Highest service life
- Wear-resistance
- Oil-resistance
- Grease-resistance
- Emulsion-resistance
Because of these outstanding properties, contact wheels of the FAPI-PA – series have proven themselves in the market over decades.

Applications
Contact wheels FAPI–PA FREQUENCY DAMPED are the standard contact wheels often found on machines. Because of their universal usage options, almost all machine manufacturers supply their maschines with contact wheels from this series.
Grinding: cylindrical grinding, surface grinding, heaviest grinding and roughing
Grinding method: wet and dry grinding
Operation: automatic grinding, portable machines, pedestal grinder/backstand, robotic grinding
Dimensions
Diameter: 75 to 450 mm
Width: 20 to 200 mm
Hole: as per specification
Other dimensions on request!
Coating hardness
The hardness of the para rubber coating can be differentiated into five levels. The coating hardness ranges from an extra soft para rubber coating with 35º Shore (A) to an extra hard para rubber coating with 90º Shore (A).

The right contact wheel hardness always depends on the individual application.
Applications
Contact wheels FAPI–PA FREQUENCY DAMPED are the standard contact wheels often found on machines. Because of their universal usage options, almost all machine manufacturers supply their maschines with contact wheels from this series.
Grinding: cylindrical grinding, surface grinding, heaviest grinding and roughing
Grinding method: wet and dry grinding
Operation: automatic grinding, portable machines, pedestal grinder/backstand, robotic grinding
Coating Hardness
The hardness of the para rubber coating can be differentiated into five levels. The coating hardness ranges from an extra soft para rubber coating with 35º Shore (A) to an extra hard para rubber coating with 90º Shore (A).

The right contact wheel hardness always depends on the individual application.
Dimensions
Diameter: 75 to 450 mm
Width: 20 to 200 mm
Hole: as per specification
Other dimensions on request!