Keramull KM RR-HTC

Friday 31 August 2018

Wednesday 2 December 2015

Keratech on «Il Sole 24 Ore»

Keramull KM RR-HTC

KM RR/HTC high thermal conductivity and its very low expansion coefficient make this silicon carbide-based roller the ideal choice in order to guarantee a correct advancement of the tiles and planarity, in the rapid cooling zone of the kiln.

Mineralogical Composition
  • Corundum
  • Mullite
  • Silicon Carbide
Al₂O₃ Content


Bulk Density

2.42 g/cm3

Apparent Porosity


Water Absorption


M.O.E. 20°

> 90 GPa

Thermal Expansion Coefficient

5.5*10-6 K-1

  • Rapid cooling zone of the kiln.


Roller suitable for the rapid cooling zone, providing a correct planarity and tile advancement.

It is the roller for the rapid cooling zone with the highest modulus of elasticity.


This type of roller can be produced longer than 5000 mm and with double coaxial grinding.

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