
Large-Capacity High-Purity Alumina Crucible – High Form
ZYLAB Large-Capacity Alumina Crucible is designed for high-temperature applications requiring superior purity and thermal stability. Engineered with high-purity alumina (purity ≥99%), it is ideal for laboratory, industrial, and research environments where precision and durability are essential. The crucible’s high...

Product Details
ZYLAB Large-Capacity Alumina Crucible is designed for high-temperature applications requiring superior purity and thermal stability. Engineered with high-purity alumina (purity ≥99%), it is ideal for laboratory, industrial, and research environments where precision and durability are essential. The crucible’s high form and large capacity make it suitable for processing bulky or large-volume samples.
Material: Alumina (Al₂O₃)
Purity: ≥99%
Shape: High Form, with or without Lid
Continuous operating temperature: ≤1600°C
Thermal Shock Resistance: Excellent performance under rapid heating and cooling cycles
Chemical Resistance: Inert to most acids, alkalis, and molten metals
Electrical Insulation: Superior dielectric properties at high temperatures
For more information, custom orders, or technical support, please contact us.
Applications
Material Synthesis: Efficient sintering and calcination of metals, ceramics, and composite materials.
High-Temperature Melting: Ideal for melting and casting metals and alloys in research and industrial environments.
Chemical Processing: Suitable for reactions requiring high thermal stability and chemical resistance.
Laboratory and R&D: Used in material science research for sample analysis and preparation.
Why Choose ZYLAB Large-Capacity Alumina Crucible?
Reliable performance in high-temperature environments.
High purity ensures low contamination risk.
Large capacity for bulk material processing.
Precision design for consistent results in laboratory and industrial applications.
High Purity Alumina Crucibles Notes for Use
1. Before the first use, preheat the crucible in an oven at around 105°C for 120 minutes to remove moisture.
2. Do not directly heat the crucible with gasoline blowtorch, acetylene torch, or alcohol burner to avoid uneven heating and cracking of the product.
3. The heating or cooling rate should not be too fast. The temperature change below 1200°C should be <5°C/minute, and above 1200°C should be ≤4°C/minute. When cooling, it is recommended to control the temperature by powering off gradually. Cooling too fast during the initial cooling phase after turning off the power may cause the product to crack.
4. The distance between the product and the heating element (such as carbon tube, silicon molybdenum rod, or heating wire, etc.) should be >2cm.
5. The bottom of large crucibles should preferably not directly contact the bottom of the furnace. It is recommended to use alumina foot pads or other heat-resistant materials to lift the crucible, forming air convection to prolong the service life of the product.
More Laboratory Crucibles
99% Alumina Conical Muffle Furnace Crucible with Lid
High-purity Alumina (Al2O3) Crucible for Tube Furnace
High Purity Boron Nitride (BN) Crucible
Click to view the comparison of laboratory crucibles, including quartz, magnesium oxide, boron nitride, and graphite crucibles, to help you choose the right one for your experimental needs.
Specifications
Figures below are the manufacturer data for this model. Anything not listed is confirmed in writing with the quotation rather than estimated here.
| Large-Capacity High-Purity Alumina Crucible (UoM:mm) | |
|---|---|
| 300 ml, Ø100 (top), Ø50 (bottom), H85 mm | 300 ml, Ø83 (top), Ø50 (bottom), H106 mm |
| 350 ml, Ø89 (top), Ø50 (bottom), H103 mm | 460 ml, Ø100 (top), Ø62 (bottom), H85 mm |
| 460 ml, Ø85 (top), Ø55 (bottom), H130 mm | 500 ml, Ø100 (top), Ø62 (bottom), H117 mm |
| 750 ml, Ø111 (top), Ø75 (bottom), H128 mm | 1000 ml, Ø120 (top), Ø80 (bottom), H145 mm |
| 1300 ml, Ø130 (top), Ø85 (bottom), H155 mm | 1500 ml, Ø140 (top), Ø85 (bottom), H175 mm |
| 2300 ml, Ø165 (top), Ø110 (bottom), H153 mm | 3500 ml, Ø220 (top), Ø120 (bottom), H150 mm |
Large-Capacity High-Purity Alumina Crucible – High Form In Detail




Processes This Unit Supports
These are the applications ZYLAB lists this model under. Each link opens the full equipment set for that process, which is useful when a project needs more than one machine.
- General laboratory sample preparation
Who Orders It
Fields this model already works in, plus what ZYLAB puts behind it: a 2-year warranty on most products, glass excluded, spare parts in stock and free application support by WhatsApp or email.
- University and institute research laboratories
Related Projects
Related Guides
- The Role of High-Temperature Sintering Furnaces in Amorphous Quartz Preparation
- The Role of Vacuum Box Furnaces in High-Temperature Preparation of Oxidation-Sensitive Materials like Titanium Alloys and High-Purity Alumina Ceramics
- Why Do Alumina Crucibles Crack During Sintering? | Analysis & Practical Solutions
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Ordering Large-Capacity High-Purity Alumina Crucible – High Form
What is Large-Capacity High-Purity Alumina Crucible – High Form typically used for?
ZYLAB Large-Capacity Alumina Crucible is designed for high-temperature applications requiring superior purity and thermal stability. Engineered with high-purity alumina (purity ≥99%), it is ideal for laboratory, industrial, and research environments where prec
Can Large-Capacity High-Purity Alumina Crucible – High Form be customised for our process?
Yes. Chamber or tube size, temperature profile, atmosphere, gas path, control system and data recording can all be adapted. Send us your process conditions and sample details and our engineers work out a configuration with you.
How quickly can Large-Capacity High-Purity Alumina Crucible – High Form be shipped?
Most standard ZYLAB models are held in stock. After testing and packing we normally ship Large-Capacity High-Purity Alumina Crucible – High Form within 3 to 7 days. Customised builds are scheduled after the drawing is confirmed, and we give you the date in writing before the order is placed.
How is Large-Capacity High-Purity Alumina Crucible – High Form packed for export?
Packing is chosen for the safety of the machine against freight cost, typically a plywood or wooden crate with internal padding and vacuum-sealed accessories. Export documents such as Form A, Form E and Form F can be issued to help you save duty.
Can you supply items that are not on this page?
Yes. We have access to the complete lines of most of our suppliers and build custom equipment in our own factory, so tell us what the experiment needs and we will source or make it.
Quote For Large-Capacity High-Purity Alumina Crucible – High Form
Tell us the sample, the temperature and the atmosphere. You get the configuration, the price and the despatch date in one reply.
