Cordierite Mullite Sagger

Our Cordierite Mullite Sagger is a high-performance refractory kiln furniture solution engineered specifically for demanding high-temperature applications in the new energy materials industry. Manufactured from premium-grade cordierite and mullite materials, this sagger delivers exceptional thermal shock resistance, outstanding corrosion resistance, and superior structural stability under extreme operating conditions-
. With a maximum service temperature ranging from 1250°C to 1400°C, a bulk density of 1.85–2.83 g/cm³, and apparent porosity of 14.6–25%, our Cordierite Mullite Sagger is the ideal choice for lithium battery positive electrode material calcination, powder sintering, and various new energy material processing applications. Its low thermal expansion coefficient ensures dimensional stability during rapid heating and cooling cycles, significantly extending service life and reducing operating costs

Product Parameters

Product Advantages

1. Exceptional Thermal Shock Stability – Our Cordierite Mullite Sagger exhibits outstanding resistance to thermal cycling, maintaining over 50% of original strength after repeated thermal shock tests-. The unique cordierite-mullite composite structure effectively inhibits micro-crack propagation, dramatically improving thermal fatigue resistance
2. Superior Corrosion & Erosion Resistance – Specially formulated to resist chemical attack from Li⁺, Co²⁺, and other aggressive ions commonly encountered in lithium battery cathode material sintering
3. Extended Service Life – With excellent anti-stripping and anti-powdering properties, our sagger delivers significantly longer service cycles compared to conventional refractory products, reducing replacement frequency and lowering overall production costs
4. Low Thermal Expansion Coefficient – The inherently low CTE of the cordierite-mullite system ensures dimensional stability during rapid temperature changes, minimizing deformation and maintaining precise tolerances
5. High Mechanical Strength – Cold modulus of rupture reaches up to 20.6 MPa in optimized formulations, providing robust mechanical performance for heavy-duty industrial applications
6. Customizable Sizes & Shapes – Available in a wide range of dimensions and configurations to meet specific customer requirements, including saggers, hollow shelves, solid shelves, pillars, and supports
7. Contaminant-Free Processing – Low Fe₂O₃ and free silica content ensures no contamination of sensitive new energy materials during high-temperature processing

Product Applications

1. Lithium Battery Industry – Primary application is sintering and calcination of lithium battery positive electrode materials including LiNixCoyMnzO₂ (NCM), lithium iron phosphate (LiFePO₄), and other cathode material systems
2. New Energy Material Processing – Ideal for high-temperature treatment of various new energy materials, including ternary precursor materials, lithium cobalt oxide, and emerging battery material systems-
3. Electronic Ceramics – Widely used in the firing of electronic ceramics, electronic components, and dielectric materials
4. Advanced Ceramics – Suitable for sintering of industrial ceramics, microcrystalline glass, and magnetic materials
5. Powder Metallurgy – Effective for powder calcination, metal heat treatment, and various powder processing applications
6. Kiln Furniture Systems – Available as complete kiln furniture systems including saggers, hollow shelves, solid shelves, pillars, and for integrated high-temperature processing lines

Company Profile:

Luoyang JianXun Tech Co., Ltd. specializes in the research, development, and supply of high-performance refractory kiln furniture and advanced ceramic materials, with a core focus on cordierite-mullite saggers, corundum-mullite products, and silicon nitride bonded silicon carbide series. The company provides comprehensive solutions for high-temperature processing, including saggers, hollow shelves, solid shelves, pillars, and custom-shaped kiln furniture for the new energy materials, lithium battery, electronic ceramics, and powder metallurgy industries. With professional manufacturing capabilities, stringent quality control systems, and ISO-certified production processes, JianXun delivers reliable, durable, and cost-effective products that meet the most demanding industrial requirements. Our technical team offers full support from material selection to after-sales service, ensuring optimal performance in every application.

Payment Terms: T/T, PayPal, Credit Card, Western Union, etc.

Shipment Terms: By air, by sea, by express, or according to customer request.

Storage Conditions: Store Cordierite Mullite Saggers in a dry, clean, and well-ventilated environment, away from moisture, heavy impact, and chemical contaminants. Proper stacking and protection from rain or dampness are recommended to preserve product integrity before use.

FAQ about Cordierite Mullite Sagger

Q1: What is a Cordierite Mullite Sagger?
A: A is a high-performance refractory kiln furniture product made from a composite of cordierite and mullite materials. It is designed to contain and protect materials during high-temperature firing, sintering, and calcination processes in industrial kilns.

Q2: What are the main advantages of cordierite-mullite saggers over other materials?
A: Cordierite-mullite saggers offer an optimal combination of excellent thermal shock resistance, low thermal expansion coefficient, good corrosion resistance, and high-temperature stability. This makes them particularly suitable for applications involving rapid temperature cycling and aggressive chemical environments, such as lithium battery material sintering-.

Q3: What is the maximum operating temperature of this sagger?
A: Our Cordierite Mullite Sagger can safely operate at temperatures ranging from 1250°C to 1400°C, depending on the specific formulation and application requirements.

Q4: What is the typical bulk density and porosity range?
A: The bulk density ranges from 1.85 to 2.83 g/cm³, and the apparent porosity ranges from 14.6% to 25%, providing an excellent balance of mechanical strength and thermal insulation properties.

Q5: Is this sagger suitable for lithium battery cathode material sintering?
A: Yes. Our Cordierite Mullite Sagger is specifically engineered for lithium battery positive electrode material calcination. It exhibits excellent resistance to chemical attack from Li⁺, Co²⁺, and other aggressive species commonly encountered in cathode material synthesis, ensuring long service life and product purity.

Q6: Can you customize the size and shape of the sagger?
A: Yes, we offer fully customizable sizing and shaping options to meet specific customer requirements. Our product range includes saggers, hollow shelves, solid shelves, pillars, supports, and other kiln furniture configurations-.

Q7: What is the typical service life of a cordierite-mullite sagger?
A: Service life varies depending on operating conditions, but our cordierite-mullite saggers are designed for extended durability with excellent anti-stripping and anti-powdering properties. The superior thermal shock resistance and corrosion resistance significantly extend service cycles compared to conventional refractory products, reducing replacement frequency and operating costs.

Q8: Do you provide technical support and after-sales service?
A: Yes, we provide comprehensive technical support, application guidance, and after-sales service to ensure optimal product performance and customer satisfaction.