KHIA headerKnow-How in Action


Belzona® Applies Anti-Abrasive Lining On Mill’S Trunnion



Mining and Quarrying (MINQ)



Solids Handling Machinery (SHM)


Customer Location:

Mine, ES, Brazil


Application Date:

November 2005


Application Situation:

Mill’s trunnion



Ore, (100% solid), in contact with the trunnion, combined with humidity and room temperature, generates corrosion and abrasion. The application of a product was necessary in order to protect the worn surface against corrosion and abrasion at the operating equipment temperature of 50°C.



Belzona 1311 (Ceramic R-Metal)

Belzona 1812 (Ceramic Carbide FP)



Cast Iron


Application Method:

This application was carried out based on Belzona Know-How System Leaflet SHM-13. Surface was prepared by grit blast (Sinter Ball) to achieve the appropriate roughness and cleanness standards. After the surface preparation, Belzona 1311 was applied on the areas with pores in order to level the surface. After that, Belzona 1812 was applied as a final coating.


Belzona Facts:

Belzona 1812 successfully offered protection to surfaces subjected to abrasive attack.


Photographs Description

  1. Trunnion after blasting
  2. Application in progress
  3. Finished work. Equipment coated with Belzona 1311 and Belzona 1812
Case study pic one


 Case study pic two


 Case study pic three




For more information about Belzona visit: