| Color | White |
High Temperature Alumina Ceramic Rollers For Roller Kiln
With the state-of –the-art technology and processing, super high temperature ceramic rollers have very advanced features of exnt thermal shock resistance, high bending strength and load capacity. Such this kind of ceramic rollers are used in super wide-body kiln to produce large type polished tiles, glazed tiles such as wall tiles and floor tiles. The maximum working temperature is up to 1350℃, and the maximum length is 5200MM.
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Items | Unit | Type1--- NT909 | Type2-- NT969 | Type3-- NT979 | Type4-- NT989 | Type5-- NT999 |
Al2O3 | % | ≈18  |  70--72 | 73--75 | 76--78 |  ≥80 |
ZrO2 | % | ---- | Â ---- | --- | 4--6 | Â 4--6 |
| SiC | % | ≈45 |  --- | --- | --- |  --- |
Water absorption | % | Â 8--10 | Â 7--9 | 6--8 | 4--6 | Â 3--5 |
Max. Working Temperature | ℃ | 1050 |  1120 | 1250 | 1350 |  1400 |
Anti-bending Strength | MPa | 45--55 | Â 45--55 | 50--60 | 60--70 | Â 70--80 |
Thermal Shock Resistance | Â / | Exnt | Â Exnt | Â Exnt | Â Exnt | Â Exnt |
| Refractoriness |  ℃ | 1300---1400 |  1650--1700 | 1700--1750 | 1750--1800 |  ≥1860 |
T.I.R | mm | ≤0.05%  |  ≤0.05% | ≤0.05% | ≤0.05% |  ≤0.05% |
Dia. Tolerance | mm | +0.3,-0.2 | Â +0.3,-0.2 | +0.3,-0.2 | +0.3,-0.2 | Â +0.3,-0.2 |
| Length Tolerance | mm |  ±2 |  ±2 | ±2 |  ±2 |  ±2 |
| Roundness | mm | ≤0.3 |  ≤0.3 | ≤0.3 | ≤0.3 |  ≤0.3 |
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| Â | Â Inner Wall Tile& Glazed Floor Tile | Â Inner Wall Tile& Glazed Floor Tile | Â Inner Wall Tile, Glazed Floor Tile & Vitrified Outer wall tile | Â Inner Wall Tile, Glazed Floor Tile , Vitrified Outer wall tile, Square Tile, Polishing Tile &Household Tile | Â Inner Wall Tile, Glazed Floor Tile , Vitrified Outer wall tile, Square Tile, Polishing Tile ,Household Tile& Sanitary Ware. |
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