Our specialization; long and thin piston rods
Griekspoor Thermal Coatings is pleased to carry out their specialization in the coating of very long and thin piston rods. In this case for a foreign gouvernement!
The piston rod is used to control the water flow to generate power, in a hydro power plant. It is the last one in a series of three and has a diameter of Ø210mm and a length of 20,32 meters. Coating length is 18,66 meters.
Advise application TOPCOAT®+
We grind and polish the piston rod. The coating we use is TOPCOAT+. This coating is similar to TOPCOAT® ceramics, however the plasa sprayed nickel-chrome based adhesive layer is replaced by an HVOF sprayed nickel based superalloy (TOPCOAT® 177). As a result the corrosion resistance, chemical resistance, and therefore the operational reliability are improved. Typical applications are the same as those of TOPCOAT® applications:
- Hydraulic parts, e.g. piston rods
- Components in the automotive industry
- Wear resistant sealing surfaces
- Wear resistant sleeve bearing surface
- Replacement and recoating of Ceramax