preserve the
planet.
savee
energy.
  
   
 

Refractory Rollers

Dimensions of NTK Refractory Rollers:

NTK refractory rollers are produced in various standard diameters and lengths, to be adapted to various types of kilns.
Length: up to 3,720 mm
Diameter:: 60, 55, 50, 45, 42, 40, 38, 36, 33,7, 30 e 26,9 mm
Rectified shafts with various types of terminations.
Consult NTK about other dimensions.

 

Physical-Chemical Characteristics:

Major Phase
Apparent Density
(g/cm³)
Porosity
(%)
Water Absorption
(%)
Mechanics Compression Resistance
(Mpa)
Mulita
> 2,42
12 ~ 18
3,5 a 7
> 45

Thermal Expansion Coefficient (1000°C)
(10-6K-1)
Thermal Shock
Maximum Operating Temp
5,6 ~ 5,8
Good
1.250°C
Data obtained in sample bodies of test and do not constitute a guarantee.