Technical Data of Kerui Silicon Carbide Roller

Item	SiO₂-SiC	SiSiC/RBSiC	R-SiC	Si3N4-SiC
SiC %	＞85	90~92	＞99	≥75
Density g/cm3	2.65~2.75	>3.02	2.65～2.75	2.65～2.85
Porosity %	15~16	<0.1	15-18	13-15
Bending strength (20℃)Mpa	90~100	260	80～100	160-180
Bending strength (1200℃)Mpa	100~110	280	90～110	170-180
compressive strength (20℃)Mpa	≥300	900	≥300	580
Hardness Kg/mm2	1800~2000	2400	1800～2000	2000-3000
Thermal Conductivity (1200℃)w.m-1.k-1	35~36	45	36	19.6
Coefficient of thermal expansion(1200℃) α×10-6/C	4.6	4.5	4.6	4.7
Maximum operation temperature ℃	1500	1380	1650	1550

Features of Kerui Silicon Carbide Roller

• High Heat Resistance: SiC rollers can function at temperatures up to 1600°C (2900°F) without any degradation, making them ideal for continuous firing and cooling applications.
• Wear Resistance: These rollers are highly resistant to abrasion and wear, ensuring a long service life even in high-load and high-stress applications.
• Low Thermal Expansion: Silicon carbide rollers have a very low thermal expansion coefficient, meaning they maintain their shape and size even under extreme temperatures.
• Smooth Operation: Their precise construction ensures smooth and consistent material movement through kilns and furnaces.
• Corrosion and Chemical Resistance: These rollers are resistant to most acids, alkalis, and slags, ensuring that they maintain operational efficiency in aggressive environments.

Main Uses of Kerui Silicon Carbide Roller

• Kiln Roller Conveyors: Silicon carbide rollers are commonly used to transport materials such as ceramics and glass through high-temperature kilns.
• Ceramic Firing: Used as kiln furniture in ceramic firing processes to support and transport ceramic products through the furnace.
• Glass Manufacturing: Employed in glass melting and molding processes where they withstand both high temperatures and corrosive conditions.
• Steel Reheating Furnaces: Utilized in reheating furnaces to transport steel billets, ensuring consistent movement and temperature distribution.