Workpieces that are provided with an excess hard chrome plating must 
              generally be finished to the prescribed dimensional tolerance. In order 
              to be able to supply our customers with ready-to-install machine parts, 
              we have a precision cylindrical grinding shop so that we can pregrind, 
              finish and polish parts as required.
            
            
              The grinding and polishing of hard chrome plated surfaces requires 
              special care and experience. Our mechanical machining scale ranges 
              from rough grinding to finish polishing: 
            
            
              - coarsely ground: Ra 0.7 - 1.2 µm, Rz 4 - 6 µm
- ground: Ra 0.4 - 0.6 µm, Rz 2-2.5 µm
- honed: Ra 0.3 - 0.35 µm, Rz 1.5 µm
- stone polished: Ra 0.02 - 0.04 µm, Rz 0.2 - 0.4 µm, Rt 0.4