Corundum-Mullite Series
Corundum-mullite kiln furniture combines heat resistance, structural stability and thermal shock resistance. Saggars, kiln shelves, pusher plates and posts are available, with specification support.One-stop supply of saggars, kiln shelves, pusher plates and posts for operating temperatures of 1400~1750℃. Uniform thickness, smooth surfaces and low creep make them widely used in electronic ceramics, industrial ceramics, high-temperature ceramics and magnetic materials.
• Good thermal shock resistance and long service life, without sudden fracture
• Chemically stable, without contaminating ceramic products
• High hot strength and load capacity, with resistance to bending, creep and deformation during long-term use
• A wide range of types and specifications, customizable to customer requirements
Performance Parameters
Model | Al₂O₃（%） | SiO₂（%） | Fe₂O₃（%） | Bulk Density (g/cm³) | Apparent Porosity (%) | Cold Modulus of Rupture (MPa) | Maximum Operating Temperature (℃) |
PZ Kiln Shelf | 75 | 23 | 0.5 | 2.75 | 18 | 10 | 1450 |
PG Kiln Shelf | 90 | 9.5 | 0.1 | 3.0 | 18 | 10 | 1720 |
Medium-Temperature Pusher Plate | 75 | 23 | — | 2.75 | 15 | — | 1450 |
High-Temperature Pusher Plate | 88 | 11 | — | 3.0 | 15 | — | 1750 |
Saggars / Posts | 90 | 9.5 | — | 3.0 | 15 | — | 1750 |
Note: The hot modulus of rupture of both PZ and PG kiln shelves (1400℃×0.5h) is 10 MPa.
Dimensions and Typical Applications
Model | Dimensions | Typical Applications |
PZ / PG Kiln Shelves | Width 200~600mm, length 200~1000mm, thickness 10~40mm | Ceramic membrane supports, alumina substrates, ceramic knives, powder metallurgy, etc. |
Medium-Temperature Pusher Plate | 220×220×50, 220×230×50, 280×260×50, 340×340×30 (mm), etc. | Kiln furniture for firing magnetic materials |
High-Temperature Pusher Plate | Same sizes as the medium-temperature pusher plate series; customization available | High-temperature firing of alumina, zirconia structural ceramics and related ceramics |
Saggars / Posts | Saggars: φ100×35, 190×190×170, 200×190×180, 210×220×80 (mm), etc.; posts can be customized | Ceramic membrane supports, alumina substrates, ceramic knives, powder metallurgy, etc. |
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