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We offer a complete product line of ceramic grinding media.

King's Fused Silica roller

King's beads

Features

King's Fused Silica roller has low dilatability and does not transfer heat; 20-30% heat absorbed by glass is transferred by the gap between the rollers.

Application

As an important role in the process of glass heating, ceramic roller is positioned between the glass and the bottom furnace.

Specification

Bulk density g/cm3 1.92-1.99
Apparent porosity % 6-12
Compressive strength(RT) MPa ≥60
Bending strength(RT) MPa ≥25
Bending strength(HT) (1100℃×0.5h)(MPa) ≥28
Thermal Expansion (RT-1100℃) ×10-6/℃ ≤0.6
Thermal Conductivity(500℃) W/m·℃ 0.65
Roughness μm Ra≤1.6
Diameter tolerance mm ±0.05
T.I.R mm ≤0.08
Chemical composition SiO2 (wt%) ≥99.5