Industrial & Laboratory Crucible Manufacturer | Custom High-Temperature Ceramic Crucibles
Luoyang Zhongchao New Material Co., Ltd. is a professional manufacturer of high-temperature crucibles for laboratory, metallurgy, foundry, ceramic, semiconductor, and advanced material applications. Since 2003, we have operated a 40,000 m² manufacturing facility in Henan, China, producing high-quality ceramic crucibles with stable performance, consistent quality, and reliable global supply.
Our annual production capacity exceeds 70,000 tons, with more than 15,000 tons exported every year to customers across Asia, Europe, the Middle East, and the Americas. Whether you require standard products or fully customized crucibles, our engineering team provides material selection, design support, and OEM/ODM manufacturing based on your operating conditions.
Engineered Materials to Suit Your Thermal Demands
Depending on your working temperature and chemical environment, we manufacture crucibles in various high-purity formulations:
High-Purity Alumina (Al2O3 ≥99%): Max working temperature up to 1800°C. Ideal for high-purity laboratory research and precious metal refining.
Application: Recommended for applications where chemical purity and contamination control are critical, such as laboratory analysis, precious metal melting, and high-temperature material research.
Silicon Carbide (SiC) / Graphite: Excellent thermal shock resistance and high thermal conductivity. Best for non-ferrous metal melting and foundry applications.
Application: Frequently selected for aluminum, copper, brass, and other non-ferrous metal melting due to its fast heat transfer and excellent resistance to thermal shock.
Zirconia (ZrO2): Max working temperature up to 2200°C. Designed for ultra-high vacuum environments and advanced metallurgy.
Application: Suitable for demanding ultra-high-temperature processes requiring exceptional corrosion resistance and dimensional stability.
Standard Crucible Designs for Different Furnace Types and Applications
|
Crucible Geometry & Types |
Primary Materials |
Key Applications & Best For |
Engineering Advantage |
|
Cylindrical / Straight-Wall |
Alumina, Zirconia |
Tube furnaces, sintering, calcination. |
Uniform wall thickness prevents thermal gradient stress. |
|
Conical & Tapered |
Graphite, SiC, Alumina |
Precious metal melting and foundry casting. |
Tapered angle facilitates easy ingot and slag removal. |
|
Spouted & Lipped Crucibles |
Silicon Carbide |
Manual/automated pouring, alloy foundry. |
Precision-designed pour spout prevents dripping and material loss. |
|
Saggers & Trays |
Alumina, Cordierite |
Battery cathode materials, phosphor calcination. |
Maximized surface area for high-volume batch loading. |
If your application requires non-standard dimensions, wall thicknesses, pouring lips, or special geometries, our engineering team can develop customized crucibles based on your drawings or technical specifications.
Complete Your Setup: One-Stop Accessories
Matching Crucible Lids & Covers
Available in matching materials (Alumina, Zirconia, or SiC) to prevent volatile material loss, reduce thermal radiation loss, and protect the melt from external atmospheric contamination.
Refractory Pedestals & Base Blocks
Thick-walled base blocks designed to support the crucible weight, elevate it to the hot zone of the furnace, and protect the furnace floor from potential melt runout.
Ergonomic Crucible Tongs
Heavy-duty lifting and pouring tongs customized to match the exact taper and outer diameter of your crucibles, preventing mechanical stress cracks during handling.
Tailored Crucible Solutions for Your Applications
Different industries require different crucible specifications. Our engineering team works closely with customers to develop customized products that meet specific application requirements.
Precision Geometries & Tolerances (±0.1 mm)
Custom diameters, wall thicknesses, and complex tapered designs achieved through dry pressing and CNC green-state machining.
Material Formulation Optimization
Fine-tuning of density, porosity, and grain structure to maximize thermal shock resistance, strength, and chemical inertness for specific melts.
Advanced Surface Finishing
High-purity coatings, glazing, or ultra-smooth polishing to prevent chemical sticking, reduce contamination, and ease ingot release.
B2B Private Labeling & Branding
Laser-engraved part numbers, batch tracking codes, and custom branding directly on the crucible body for seamless inventory management or distributor private labeling.
Proper handling and operation can double the lifespan of your crucibles, lowering your total cost of ownership (TCO). Our engineering team recommends:
The Preheating Protocol: Always preheat your crucible slowly before the first heat or after a long shutdown. This removes moisture and prevents thermal shock cracking.
Avoid Over-Packing: Do not tightly pack cold metal ingots into the crucible. As the metal heats and expands, it can exert immense pressure, causing the crucible to split.
Correct Tong Fit: Ensure your lifting tongs match the taper and shape of the crucible perfectly to distribute pressure evenly and avoid mechanical damage.
Quality Assured & Certified
Our manufacturing processes and testing laboratories adhere strictly to international quality management systems:
ISO 9001
2015 Certified Quality Management
Fully Traceable Materials
Every batch undergoes ICP-OES chemical analysis and is issued a Material Test Certificate (MTC) matching ASTM / DIN standards.
Each production batch undergoes strict inspection before shipment, including chemical composition verification, dimensional measurement, density testing, visual inspection, and packaging verification to ensure consistent product quality.
ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry): Ensures chemical purity down to the PPM level, preventing melt contamination.
SEM (Scanning Electron Microscopy): Analyzes microstructures and grain boundaries to guarantee extreme density and crack resistance.
Thermal Analyzers & BET Surface Area Analyzers: Measures thermal performance and optimizes raw material properties before manufacturing.
Laser Particle Size Analyzers: Controls the raw material particle distribution to achieve maximum mechanical strength.
Industrial Export Packaging & Damage-Free Guarantee
Industrial crucibles are fragile, and we treat them as such. To ensure your order arrives in perfect condition, we implement multi-layer protective packaging:
Custom Foam Inserts
Individually molded foam to absorb shock and prevent movement during transit.
Vacuum/Moisture-Proof Wrapping
Protects the crucibles from humidity and ocean salt spray during long sea freight.
Reinforced Plywood Crates
Fumigation-free wooden boxes with steel strapping, optimized for forklift handling.
Flexible Shipping Terms
We support FOB, CIF, DDP, and DAP terms, working with top global logistics providers to ensure timely and safe delivery to India, South Korea, Turkey, Russia, Spain, and worldwide.
Certificate
As one of the most professional crucible manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please rest assured to buy high quality crucible made in China here from our factory. For price consultation, contact us.