99% High Purity Alumina Crucible | High Temperature Al2O3 Ceramic Crucible for Laboratory and Industrial Applications

When working in high-temperature environments, buyers usually focus on three things: temperature resistance, material purity, and service life. The 99% high purity alumina crucible is designed to meet these requirements. Made from high-grade Al2O3 powder and sintered at high temperatures, this ceramic crucible maintains structural stability and minimizes contamination during processing.

Compared with ordinary ceramic crucibles, high-purity alumina crucibles perform better in laboratory analysis, powder calcination, metal melting, and sintering of advanced materials. The dense structure reduces impurity release and ensures consistent experimental results, making it suitable for both research laboratories and industrial production lines.

Technical specifications

Al2O3 Content: ≥99%
Maximum Temperature: 1700°C
Density: ≥3.8 g/cm³
Water Absorption: ≤0.2%
Color: White / Ivory
Shape: Cylindrical / Conical / Rectangular / With Lid

Production Process

Production begins with carefully selected high-purity alumina raw materials. Strict control of impurity levels ensures stable performance at high temperatures. The material is then formed using isostatic pressing, which provides uniform density throughout the crucible body and improves structural strength.

After forming, the crucibles are sintered in high-temperature kilns. This process increases density and enhances thermal stability. Precision machining is performed to ensure dimensional accuracy and a smooth surface finish. Each crucible undergoes quality inspection before packaging to guarantee consistency and reliability.

Packaging and Shipping
Each alumina crucible is packed with protective foam. Bulk orders are packed in export cartons or wooden crates to ensure safe delivery. Custom packaging is available for long-distance transportation.