Selecting the correct roughness

The correct roughness of the piston rod coating is very important in the hydraulic industry. An optimum roughness has a positive effect on the lifespan of the rod coating and on the lifetime of the seals.

With the optimum roughness the rod coating contains enough oil to be withdrawn back into the cylinder with the right amount of friction. This ensures that the moving in and out of the piston rod takes place at an even and controlled speed. There should be no or only very minimal oil loss during the moving of the piston rod.



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