Ceramics

Keramull KM 25-20

Roller characterized by exceptional operational stability and versatility.

Technical specifications

Roller characterized by exceptional operational stability and versatility: very low thermal expansion coefficient, high resistance to thermal shock and chemical attack. High elastic modulus constant at all temperatures. Fit for the production of tiles up to 20 mm thickness.

Technical specifications Description
Mineralogical composition Corundum//Mullite//Zirconia
Type Super-Technical
Identification color Black
Al2O3 content 0,7
Bulk density 2.80 Kg/dm3
Apparent porosity 17.0%
Absorbed water 0,06
M.O.E. 20°C > 105 GPa
Thermal expansion 20-400°C 45*10-6K-1
Thermal expansion 20-1000°C 5,50*10-6K-1
Typical use Pre-firing//Firing//“Semianello” (zone between the end of the firing zone and the beginning of the rapid cooling)
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