Industrial Corundum Mullite Sagger for Sintering and Calcination

• Customization: Available
• Feature: Chemical Corrosion Resistance, Corrosion Resistance, Good Abrasion Resistance, Good Insulation Performance, High Mechanical Strength, High Melting Point, Thermal Shock Resistance
• Production Process: Semi-Dry Pressing,Isostatic Pressing,Casting/Pour
• Refractoriness (℃): Refractoriness<1000℃
• Shape: Sagger
• Transport Package: Standard Wooden Packing
• Specification: SGS
• Trademark: TTWY
• Origin: Qingdao, China
• HS Code: 6903900090
• Production Capacity: 100000pieces/Month
• Package Size: 50.00cm * 50.00cm * 60.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

High Thermal Conductivity Corundum mullite Saggar for Uniform Heating

Our company's corundum-mullite saggers are high-quality refractory containers specifically designed for high-temperature sintering, heat treatment, and calcination processes. They are primarily made from electro-fused corundum and high-purity mullite, produced through precise batching, high-pressure forming, and high-temperature firing. The products feature excellent high-temperature resistance, thermal shock resistance, corrosion resistance, and high strength, making them ideal for firing high-end ceramic products such as zirconia, alumina, rare earth materials, and electronic ceramics. They effectively ensure product quality and yield.

Specification

Core Advantages

Exceptional High-Temperature Performance: The corundum-mullite material has a high refractoriness, with a maximum service temperature of up to 1650°C, meeting the requirements of most high-temperature firing processes.

Outstanding Thermal Shock Resistance:          The material has a low thermal expansion coefficient, preventing cracking during rapid temperature changes. It can withstand multiple thermal cycles, effectively extending the sagger's service life.

Excellent Chemical Corrosion Resistance:           It exhibits strong resistance to alkaline oxides (such as calcium oxide and magnesium oxide) and slag, effectively preventing reactions between the sintered material and the sagger and avoiding product contamination.

High Mechanical Strength: The sagger maintains high strength and hardness at elevated temperatures. It is highly resistant to compression and deformation, ensuring stable support for products during the firing process.

Diverse Size Customization:                                  We offer customization services for various sizes, shapes, and thicknesses based on customer specifications, providing a perfect fit for your kiln and products.

Eco-friendly and Energy-Saving:                         The lightweight design results in low heat storage and good thermal conductivity, which helps to improve kiln thermal efficiency and reduce energy consumption.

Important Notice

Please inspect for any cracks before use to ensure safety.

Mullite Ceramics Physical Properties
Main Ingredients	Al2O3  SiO2
Physical Properties	Density		g/cm3	2.8
	Water Absorption		%	0
	Sintering Temperature		ºC	1300
	Hardness		HV	1000
	Flexural Strength (MOR)		Kgf/cm2	1100
	Compressive Strength		Kgf/cm2	6000
	Fracture Toughness		Mpa.m3/2	-
	Maximum Use Temperature		ºC	1000
Thermal Properties	Thermal Expansion Coefficient		/ºC	6*10-6
	Thermal Shock Resistance		T(ºC)	300
	Thermal Conductivity		M/m.k(25-300ºC)	4.2-
Electrical Properties	Volume Resistivity	20ºC	>.cm	>1012
		100ºC		1010-1012
		300ºC		-
	Dielectric Breaking Strength		KV/mm	10
	Dielectric Constant		100MHz(E)	6

Drawings & Dimensions

Available in various specifications and sizes.Customization services are also available.

Company Profile

Qingdao TTWY International Trade Co., Ltd

Our company specialized in producing casting equipment. It is located in Qingdao,a beautiful harbor city,which is convenient in transportation. Especially in Refractory products, for expamle, the Quartz Crucible,Graphite crucible,Fire Assay Clay Crucible,Mullite Ceramic Crucible,Zirconia/Alumina(Al2O3) Ceramic Crucible , etc;

With high quality,reasonable price and attentive service the products produced by TTWY have wined trust from clients at home and aboard.

Packaging & Shipping

FAQ

Q1: What information should I let you know if i want to get a quotation?
A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly supply us drawings).
The required more information, such as Surface Condition, Tolerance Request, The Quantity, and other mechanical and technical details.
     
If it is possible, please also provide the application of products, we will recommend the most suitable products with details for confirmation.
 
Q2: How do you gurantee the quality of the products?
A: Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.
 
Q3: Can you guarantee the prompt delivery?
A: Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.
 
Q4: What is your lead time? 
A : It usually needs about 15- 20 days after receiving the PO. 
 
Q5 : What is your payments terms?
A : T/T, L/C, Western Union, etc., could be acceptable. 
 
Q6 : Can we visit your company?
A : Yes, for sure, It's my pleasure to visit our company.
 
Q7 : What is the shipping cost?
A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.
 
Q8 :What is the transportation way?
A:If the Gross Weight ≤45kg, it's better by express such as TNT, DHL, FedEx,, etc. 
If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.
If the Gross Weight ≥ 100kg ,you can choose by Air or Sea to the nearest port.
 
Q9 :How service you can offer your clients? 
A:We provide presales service in various forms, for example, making investment budget,manufacturing planning,etc.so that customer make a reasonable plan with less cost. Moreover,we will also provide after sale service ,for example,free training about machine applications ect. 

Update Date:2025/12/11