Description
Product Overview
The 99% alumina square crucible from MRUPEZIU is engineered for demanding high‑temperature applications where reliability and chemical resistance are paramount. Constructed from high‑purity alumina (Al2O3) with a density that provides exceptional mechanical strength, the crucible incorporates a corundum‑covered ceramic boat that further enhances its ability to withstand temperatures exceeding 1600 °C. The material composition delivers a Vickers hardness of 1700‑2000, ensuring that the crucible maintains its shape and structural integrity even under prolonged thermal cycling.
Designed with a precise semi‑circular boat geometry measuring 150 × 40 × 22 mm, the crucible offers a compact footprint that integrates seamlessly into standard laboratory furnaces, reactors, and thermal analysis equipment. The dimensions provide ample volume for small‑scale sample testing while minimizing thermal gradients, which is critical for achieving accurate and repeatable results in research and development settings.
Beyond its impressive thermal capabilities, the crucible exhibits outstanding chemical durability. The corundum coating creates a glassy, inert surface that resists attack from strong acids and alkalis, reducing the risk of contamination and extending the service life of the product. This combination of high hardness, thermal stability, and chemical inertness makes the crucible a versatile tool for a wide range of industrial and scientific processes.
Manufactured by MRUPEZIU, a reputable supplier known for stringent quality control and consistent product performance, each crucible undergoes rigorous testing to verify compliance with industry standards. The result is a dependable component that delivers consistent performance across multiple batches, providing confidence to engineers, researchers, and technicians who rely on precise thermal processing.
![[Product front view showing all components]](https://www.felviro.store/wp-content/uploads/2026/08/9a473673ef8949b0a74c022a64472297.jpg)
Usage
This crucible is ideally suited for high‑temperature thermal processing, including but not limited to ceramic sintering, metal alloy melting, and advanced material synthesis. Its ability to endure extreme heat makes it a reliable choice for combustion experiments, where rapid temperature changes and oxidative environments are common. The corundum‑covered boat also excels in applications involving aggressive chemical environments, such as acid leaching, alkaline digestion, and catalytic testing, where traditional crucibles might degrade or react with the sample.
In laboratory settings, the crucible can be employed for differential scanning calorimetry (DSC) sample preparation, thermogravimetric analysis (TGA), and high‑temperature X‑ray diffraction studies. Its compact size allows for easy handling and placement within small‑scale furnaces, while the robust construction ensures that the crucible can be reused multiple times without loss of performance, reducing operational costs.
Industrial users benefit from the crucible’s scalability; it can be incorporated into larger batch processes without modification, offering flexibility across production volumes. Whether the task involves research‑grade material testing or pilot‑scale manufacturing, the crucible provides a consistent platform that supports accurate temperature control and uniform heat distribution.
Why Choose Us
Choosing MRUPEZIU means selecting a partner committed to quality and reliability. Our crucibles are produced using state‑of‑the‑art sintering techniques that guarantee uniform grain structure and eliminate internal defects that could compromise performance under extreme conditions. Each batch is inspected for dimensional accuracy, surface finish, and material purity, ensuring that you receive a product that meets exacting specifications.
We understand the importance of after‑sales support. Our technical team is available to assist with installation guidance, performance troubleshooting, and recommendations for optimal usage. Should you encounter any issues, our responsive customer service ensures prompt resolution, reinforcing confidence in the longevity of your investment.
Furthermore, MRUPEZIU adheres to environmental and safety standards throughout the manufacturing process. By selecting our crucible, you are not only gaining a high‑performance component but also supporting sustainable production practices that minimize waste and energy consumption.
Key Features
- Exceptional heat resistance up to 1600 °C for reliable high‑temperature testing.
- Corundum‑covered ceramic boat provides superior chemical inertness against acids and alkalis.
- High Vickers hardness (1700‑2000) ensures durability and resistance to wear.
- Compact 150 × 40 × 22 mm size fits standard laboratory and industrial equipment.
- Dedicated technical support and after‑sales service for seamless integration.
FAQ
What temperature range can the crucible safely operate within?
The crucible is rated for continuous operation up to 1600 °C and can tolerate short‑term exposure to slightly higher temperatures without compromising structural integrity.
Is the crucible compatible with acidic and alkaline environments?
Yes. The corundum coating creates a glassy, inert surface that resists corrosion from strong acids and bases, making it suitable for a wide range of chemical processing applications.
Can the crucible be reused after a thermal cycle?
Absolutely. Thanks to its high hardness and stable alumina matrix, the crucible can be cleaned and reused multiple times, offering cost‑effective performance over its service life.
What are the recommended cleaning procedures?
After use, allow the crucible to cool to room temperature, then gently brush away residues with a soft, non‑metallic brush. For stubborn deposits, a mild alkaline solution can be used, followed by thorough rinsing with deionized water.
How does the size of the crucible affect sample capacity?
The 150 × 40 × 22 mm dimensions provide a modest internal volume that is ideal for small‑scale experiments, ensuring uniform heating while minimizing material waste. Larger batches can be accommodated by using multiple crucibles in parallel.














































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