HK99 Ultra High Temperature Ceramic Roller

Model HK99 Roller

HK99 is an ultra-high-temperature ceramic roller grade designed for demanding firing zone applications where higher temperature resistance and stable bending strength are required.

Key Advantages

High Density
High Strength & Loading at High Temperature
High Temperature Creep Resistance, Long Service Life.

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Technical Specifications

Key Performance Parameters

Max Operating Temperature

1450 °C

Al₂O₃ Content

81 ~ 83 %

High-Temp Bending Strength

58 ~ 75 Mpa

Thermal Expansion Coefficient

6.0~6.4×10⁻⁶/℃

Thermal Shock Resistance

Excellent

Water Absorption

3.0 ~ 5.0 %

Application Zone

Kiln Zone Recommendation Map

This map shows Hengke ceramic roller model recommendations for each kiln zone. Every model label links to its product detail page.

Ceramic Roller Series Position in Roller Kiln

Clickable model labels · HTML/SVG data visualization · English kiln zone labels

Series Comparison

Ceramic Roller Series -- Key Parameter Comparison

Compare all Hengke ceramic roller models side by side. Current model HK99 Roller is highlighted. Click any model name to view its full product page.

Ceramic roller series comparison -- Ceramic Rollers Built for Continuous Kiln Operation
Parameter	HK95	HK98	HK99 Current	HK99-Pro	HKSC	HK-G98
Al₂O₃ Content	75 ~ 78 %	80 ~ 82 %	81 ~ 83 %	81 ~ 83 %	/	80 ~ 82 %
Water Absorption	5.0 ~ 7.0 %	3.0 ~ 5.5 %	3.0 ~ 5.0 %	3.0 ~ 4.0 %	8.0 ~ 9.0 %	5.0 ~ 7.5 %
High-Temp Bending Strength	40 ~ 55 Mpa	55 ~ 73 Mpa	58 ~ 75 Mpa	80 ~ 90 Mpa	50 ~ 70 Mpa	45 ~ 60 Mpa
Thermal Expansion Coefficient	6.2~6.8×10⁻⁶/℃	6.0~6.5×10⁻⁶/℃	6.0~6.4×10⁻⁶/℃	6.0~6.4×10⁻⁶/℃	≤4.0×10⁻⁶/℃	6.0~6.4×10⁻⁶/℃
Thermal Shock Resistance	Very Good	Excellent	Excellent	Excellent	Excellent	Excellent
Max Operating Temperature	1200 °C	1350 °C	1450 °C	1450 ℃	1100 °C	1350 ℃