Your Leading Crucible Supplier
Luoyang Zhongchao New Material Co., Ltd. (hereinafter referred to "ZC-TECH") is located in Industrial Cluster Zone, Henan Province, China, covering an area of more than 60 acres. Founded in 2003, it is an enterprise that integrates professional research and development, production, and sales of environmentally friendly and pollution-free new material. Its main products are aluminum based super fine flame-retardant material and magnesium based super fine flame-retardant material, special alumina, spherical alumina, boehmite, advanced ceramics, electronic ceramics and other inorganic material.
Provide customized formula designs for special requirements such as high filling, low smoke, and halogen-free applications.
Types of Crucible
Classification by Material
Ceramic crucible
These crucibles are made of kiln fired clay. They are stable at high temperatures. Ceramic crucibles have been used in metalworking for over 7000 years. Most ceramic crucibles are used in combination with clay and graphite for durability.
Tungsten crucible
Tungsten crucibles are products made of tungsten metal, which has very high heat resistance. The crucible temperature is as high as 3410°C. The manufacturing process of tungsten crucible is divided into spinning, stamping, forging and sintering. Tungsten is resistant to certain molten metals and metal oxides. Tungsten crucibles are widely used in the technology of growing single crystals from molten corundum; it is also used in electronic technology and thermal vapor deposition technology of various substances.
Clay graphite crucible
Graphite crucibles are mainly used for casting non-ferrous and ferrous metals. This is due to their non-reactivity, they can withstand very high temperatures.
Molybdenum crucible
Molybdenum is a naturally ductile metal with strong corrosion resistance. Apart from tantalum and tungsten, molybdenum is known to have the highest melting point of the pure elements. Molybdenum crucibles are widely used in heat exchanger method (HEM) processes. They are suitable for melting and solidifying single crystals. The ideal molybdenum crucible has thin walls and excellent creep resistance.
Silicon carbide crucible
Silicon carbide crucibles are highly resistant to extreme temperatures, making them suitable for use in modern laboratories. Additionally, they are not chemically reactive and can be used to provide contamination-free results.
Steel crucible
Stainless steel crucibles are made from a single piece of material. They are not as fragile as porcelain crucibles. Steel crucibles are used for low temperature applications and can be used to melt lower melting point metals such as aluminum and zinc. Be aware that steel crucibles will rapidly scale and flake, and will contaminate the final alloy.
Classification by Shape
'A' Shape vs. Bilge Shape
These terms are common in foundry settings. The 'A' shape is a standard tapered, conical design. The bilge shape is wider in the middle, resembling a barrel.
While their surface finishes may differ, the choice between them often comes down to matching the internal shape of the furnace and the type of tongs used to lift and pour.
High-Form vs. Wide-Form
This terminology is more common in laboratory settings. High-form crucibles are tall and narrow, ideal for containing materials that might splatter or boil over during heating.
Wide-form (or squat) crucibles are short and broad. This shape provides a large surface area, making it perfect for processes like evaporation or ashing, where maximum exposure to air is beneficial. They also offer greater stability.
Common Applications and Industries
Foundries and metalworking
Crucible furnaces are a staple in small foundries for casting metal parts. They are ideal for creating prototypes, custom components, and small production runs.
Laboratories
In scientific and material research labs, crucibles are used to melt substances for analysis, create new alloys, or conduct experiments that require extreme heat in a controlled environment.
Jewelry making
Artisans use crucibles to melt precious metals like gold, silver, and platinum. This allows them to cast intricate designs for rings, pendants, and other custom pieces.
Glassblowing
Crucibles are also used in glassblowing studios to melt the raw materials—sand, soda ash, and limestone—that form molten glass, which is then shaped by the artist.
Proper Handling & Usage
Avoid mechanical shock:
Do not drop or strike crucibles (graphite and ceramics are brittle).
Use tongs or lifting tools designed for crucible handling.
Load carefully:
Do not exceed recommended capacity (overfilling causes stress cracks).
For metal melting, add material in small batches to avoid thermal stress.
Avoid contamination:
Never mix different metals in the same crucible (cross-contamination weakens structure).
Clean residues between uses (especially when switching materials).
Certificate
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We're well-known as one of the leading crucible manufacturers and suppliers in China. Please feel free to buy high quality crucible made in China here from our factory. For price consultation, contact us.
Pouring Cup, Pouring Ladle, Precision Casting Crucible