Products Detials
Crucibles & Saggers
Crucible
High‑temperature resistant containers sintered from refractory materials including alumina, mullite, graphite and cordierite. Main types: alumina corundum crucible, graphite crucible, quartz crucible, mullite crucible.Features: high temperature resistance, thermal shock resistance, corrosion resistance and contamination‑free. Widely used in metal melting, powder calcination, laboratory thermal analysis, lithium‑ion battery material sintering and metallurgical smelting. Available in cylindrical, conical and square shapes, with lids optional.
Sagger (Saggar)
Box‑shaped refractory firing supports, mainly made of high‑purity alumina, cordierite‑mullite, silicon carbide and graphite.Core functions: isolate flame, smoke and kiln impurities to avoid product contamination; stackable for higher kiln loading capacity.Applied in high‑temperature sintering of lithium‑ion battery cathode/anode materials, ceramics, rare earths, powder materials and electronic components. Custom sizes available.
Main Materials, Temperature Resistance & Applications
| Material | Continuous Operating Temp | Key Advantages | Main Applications |
|---|---|---|---|
| 99% High‑Purity Alumina Crucible/Sagger | 1600–1650 °C | High purity, corrosion‑resistant, insulating | Lithium batteries, semiconductors, high‑purity powders, laboratories |
| Cordierite‑Mullite Sagger | 1250–1350 °C | Good thermal shock resistance, low cost, lightweight | Ceramic firing, general powder calcination |
| Silicon Carbide Sagger | 1400–1500 °C | High thermal conductivity, high strength, long service life | Rapid high‑temperature sintering, metallurgical powders |
| Graphite Crucible/Sagger | 1400–1700 °C | Excellent thermal conductivity, thermal shock & acid‑alkali resistance | Metal melting, lithium iron phosphate sintering |
Core Properties
High temperature resistance: No deformation or softening at high temperatures, stable against rapid heating & cooling
Chemical stability: Resist acids, alkalis, salt spray and molten media; no impurity precipitation
High strength & wear resistance: Stable high‑temperature structure, crack‑proof and slag‑free
High‑purity cleanliness: Low iron & low‑impurity composition, ideal for strict new‑energy and semiconductor conditions
Application Fields
New Energy: Sintering of lithium‑ion battery cathode/anode materials (LFP, ternary materials)
Laboratories: Thermogravimetric analysis, melting tests, high‑temperature vessels for tube furnaces & muffle furnaces
Metallurgy & Chemical Industry: Metal smelting, rare‑earth calcination, high‑temperature treatment of powder materials
Ceramics: Firing of daily‑use ceramics, structural ceramics and precision ceramics
Electronics & Semiconductors: Sintering of high‑purity powders, wafers and electronic components
Selection Guidelines
For temperatures above 1500 °C and contamination‑free requirements: Choose 99%/99.7% high‑purity alumina crucibles/saggers
For medium‑temperature regular sintering & budget‑friendly options: Choose cordierite‑mullite saggers
For rapid high‑temperature sintering & high thermal conductivity needs: Choose silicon carbide or graphite grades