Specifications

Glass Tempering Silica Rollers
Resistant to high temperature
Low Thermal Expansion
Sio2>99.7%
low thermal expasion

                          STA fused quartz roller for toughening furnace

 

 

 

our company can product high quality fused quartz roller

1.  Very low thermal expansion coefficient, strong thermal shock stability, no deformation under    high temperature

 

2.   Raw material with high purity, excellent chemical and physical properties

 

3.   Precision processing technology, accurate size accuracy

 

4.   Reliable shaft head connection technology

 

 

 

 

indices	data
SiO2 (wt %)	≥99.7
Volume density(g/cm3)	>1.95
Show porosity (%)	7-11
Compressive strength(Mpa)	≥60
High-temperature anti-flexural strength (Mpa)	≥30
Thermal expansion coefficient (×10-6/°C)	<0.6
Surface roughness Ra(u m)	≤1.6
Diameter tolerance (mm)	±0.05
Radial beat (mm)	≤0.10