Overview of Mullite Crucible

Mullite crucibles are made from a high-performance ceramic material composed primarily of alumina (Al₂O₃) and silica (SiO₂). Known for their excellent thermal stability and mechanical strength, mullite crucibles are widely used in high-temperature applications such as melting metals, glass, and ceramics. They offer superior resistance to thermal shock and chemical attack, making them indispensable in both laboratory and industrial settings.

Features of Mullite Crucible

Thermal Shock Resistance: Exceptional ability to withstand rapid temperature changes without cracking.
High Mechanical Strength: Strong and durable, even at elevated temperatures.
Chemical Stability: Resistant to most chemicals, ensuring minimal contamination during processes.
Temperature Range: Can operate effectively at temperatures up to 1650°C.
Low Thermal Expansion: Minimal expansion or contraction with temperature changes, ensuring dimensional stability.
Non-Reactive: Does not react with the materials being processed, preserving sample purity.
Versatility: Suitable for a wide range of applications including metallurgy, glass manufacturing, and laboratory experiments.

(Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl)

Specifications of Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl

The Graphite Crucible with a 27 cm diameter and 30 cm height is a high-performance industrial tool designed for melting, casting, and handling high-temperature materials. Crafted from premium-grade isotropic graphite, this crucible ensures exceptional thermal stability, durability, and resistance to extreme conditions. Below are the key specifications and features:

Material: High-purity graphite (99.9% carbon content) ensures superior heat resistance and minimal contamination during metal processing. The isotropic structure provides uniform strength and thermal conductivity.

Dimensions: The crucible measures 27 cm in diameter and 30 cm in height, offering a generous capacity for large-scale melting operations. Its cylindrical design maximizes internal volume while maintaining structural integrity.

Temperature Resistance: Withstands temperatures up to 3000°C in inert atmospheres and 500-800°C in oxidizing environments, making it suitable for melting metals like aluminum, copper, brass, gold, and silver.

Thermal Conductivity: High thermal efficiency ensures rapid and even heat distribution, reducing energy consumption and processing time.

Chemical Resistance: Resists corrosion from molten metals, slags, acids, and alkalis, ensuring longevity even in aggressive industrial environments.

Mechanical Strength: Reinforced walls and a thick base (approx. 3-4 cm) prevent cracking or deformation under thermal stress. The smooth interior surface minimizes material adherence for easy cleaning.

Capacity: Holds approximately 15-20 kg of non-ferrous metals, depending on density. Volume capacity is roughly 17 liters.

Applications: Ideal for foundries, jewelry workshops, laboratories, and metal recycling facilities. Suitable for induction furnaces, electric resistance heaters, or gas-fired setups.

Handling Features: Includes a reinforced rim for secure gripping with tongs. Lightweight for its size (approx. 8-10 kg, depending on wall thickness) compared to ceramic alternatives.

Lifespan: Long service life with proper care, including gradual preheating, avoiding sudden temperature changes, and storing in a dry environment to prevent oxidation.

Safety Compliance: Manufactured under strict quality control standards to ensure consistency and reliability. Free from synthetic binders or additives that could degrade performance.

This graphite crucible combines precision engineering with robust materials, offering a cost-effective solution for high-temperature applications. Its large size and durability make it a practical choice for industrial users seeking efficiency and reliability.

(Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl)

Applications of Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl

A graphite crucible with a 27 cm diameter and 30 cm height is a versatile, high-performance tool designed for industrial and laboratory applications requiring extreme heat resistance and durability. Crafted from high-purity graphite, this crucible excels in environments where thermal stability, chemical inertness, and mechanical strength are critical. Its large capacity makes it ideal for melting, casting, or processing substantial quantities of materials. Below are key applications of this crucible:

Metal Melting and Casting: The crucible’s ability to withstand temperatures exceeding 1600°C makes it suitable for melting non-ferrous metals like aluminum, copper, brass, and zinc. Its uniform heat distribution ensures efficient melting, while its robust structure resists thermal shock, reducing the risk of cracking during rapid temperature changes. Foundries and jewelry manufacturers rely on it for producing high-quality casts.

Precious Metal Refining: Gold, silver, and platinum refining demands contamination-free environments. The high-purity graphite material prevents impurities from leaching into molten metals, ensuring precise purity levels. Its size accommodates large batches, enhancing productivity for refineries and recycling facilities.

Laboratory Use: In research and testing labs, this crucible is used for high-temperature experiments, such as chemical analysis, alloy development, or material synthesis. Its resistance to acidic and alkaline substances allows for processing reactive materials without degradation.

Glass and Ceramic Production: The crucible’s thermal conductivity and stability support glass melting and ceramic glaze preparation. It maintains consistent temperatures, critical for achieving homogenous mixtures and defect-free final products.

Chemical Processing: Industries handling corrosive chemicals or high-temperature reactions use this crucible to melt or mix compounds like sulfur, phosphorus, or specialty salts. Graphite’s non-reactive nature ensures safe handling of aggressive substances.

Semiconductor Manufacturing: In producing silicon-based components, the crucible’s purity prevents contamination during silicon melting, essential for creating high-grade semiconductors.

The 27 cm x 30 cm graphite crucible combines large-scale capacity with exceptional performance, reducing operational downtime due to its longevity. Its design minimizes energy consumption by retaining heat efficiently, offering cost savings. Suitable for industries ranging from metallurgy to electronics, this crucible is a reliable solution for high-temperature applications demanding precision, durability, and scalability.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl

What is the maximum temperature the 27cm diameter x 30cm height graphite crucible can withstand? The graphite crucible can safely handle temperatures up to 1600–1800°C in inert or reducing environments, making it suitable for melting metals like gold, silver, and aluminum. Prolonged exposure beyond this range may cause structural degradation or cracking.

What industries or applications is this graphite crucible designed for? This crucible is ideal for foundries, jewelry making, metal recycling, and laboratory settings. Its size (27cm diameter x 30cm height) accommodates medium to large batches of non-ferrous metals, alloys, or glass. Common uses include melting, casting, and high-temperature chemical processes requiring thermal stability.

How do I clean and maintain the graphite crucible after use? Allow the crucible to cool completely before cleaning. Remove residue with a soft brush or non-abrasive tool; avoid water or harsh chemicals to prevent thermal shock or oxidation. Inspect for cracks or wear after each use. Store in a dry, cool place to minimize moisture absorption, which can weaken the crucible.

What is the average lifespan of this crucible under normal conditions? Lifespan varies based on usage frequency, temperatures, and materials melted. With proper care (avoiding rapid heating/cooling, mechanical impacts, or corrosive materials), it typically lasts 6–12 months in industrial settings. Smaller-scale users may extend this period.

Are there safety precautions specific to handling this large graphite crucible? Always use heat-resistant gloves and tongs when handling the hot crucible. Ensure it’s placed on a stable, heat-proof base during use. Avoid sudden temperature changes (e.g., placing a cold crucible directly into a high-temperature furnace) to prevent cracking. Work in well-ventilated areas to manage fumes from melted materials. Due to its size (27cm x 30cm), use mechanical lifting aids if necessary to avoid strain or accidents.

(Graphite crucible With 27cm Diameter And 30 Cm Heigh Graphite-crucibl)