ITOCHU Ceratech Corporation

The selected raw materials to make CERABEADS are fired at a high temperature (1680°C), making the structure dense.
CERABEADS is an artificial sand made of mullite crystals with an extremely stable quality.
It is made by firing spherical granules, not by crushing.

CERABEADS have the following advantageous chemical and physical properties:

• Uniform component composition
• Stable grain size distribution and air permeability
• High refractoriness (SK37, 1825°C)
• High resistance to wear, crush and thermal shock
• Little thermal expansion
• Excellent fluidity and filling efficiency owing to being spherical

The selected raw materials to make Mullite ball is fired at a high temperature (1680°C), making the structure of this product dense.
Mullite ball is an artificial sand with extremely stable quality due it being made of mullite crystals.
This product is made by firing spherical granules, not by crushing.

This product has the following advantageous chemical and physical properties:

• Large grain size, enabling sieving.
• High air permeability
• High refractoriness (SK37, 1825°C)
• High resistance to crush
• Little thermal expansion
• Excellent in fluidity and filling efficiency owing to being spherical

Temporarily fired alumina is pressure-formed on a briquetting machine, dried, and sintered at high temperature near its melting point (2050°C) in a rotary kiln.
It is a polycrystalline sintered body of corundum having a dense internal structure. It is high-purity SINTERED ALUMINA containing 99.5% of Al2O3.

This product has the following advantageous chemical and physical properties:

• High mechanical strength
• High thermal conductivity
• High resistance to thermal shock
• High melting point
• High electric insulation
• High chemical stability
• High resistance to wear