Piston rods, axles, valves and rolls may have a severely reduced life when installed in aggressive environments (e.g. hydromechanical equipment, mining industry, paper mill and printing industry). In addition to conventional surface protection systems such as hardening, nitriding, hard chrome plating. Hunger has developed a coating technology which significantly improves surface protection against chemical attack and mechanical wear and tear: Ceraplate.

Technical facts:

• Thermically sprayed Ni/Cr base layer and Cr2O3 / TiO2 top layer
• Layer thickness: base layer approx. 150 µm / top layer approx. 200 µm
• Hardness of the top layer 950 HV to 1,050 HV
• Surface superfinished to Ra 0.15 µm
• For piston rods up to a diameter of 1,500 mm and a length of 20 m

Properties:
Increased resistance to corrosion and chemical attack and increased resistance to abrasive and erosive wear and tear (Corrosion test accroding to DIN EN ISO 9227, 1,500 hours)

Field of application:
Hydraulic cylinder requiring increased corrosion protection in general machine engineering, hydromechanical engineering, casting machines, printing industry, chemical industry etc.