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Lightweight Cenosphere Fillers from China Suppliers - High-Quality Factory Products for Casting and Plastics
Cenospheres Production and our factory
The process of burning coal in thermal power plants produces fly ash containing ceramic particles made largely of alumina and silica. They are produced at temperatures of 1,500 to 1,750 °C (2,730 to 3,180 °F) through complicated chemical and physical transformation. Their chemical composition and structure varies considerably depending on the composition of coal that generated them.
Our cenosphere factory established in 1980, manufacturing around 4,000tons yearly. During the production, we withdraw and test the sample every half an hour, control the size distribution, true density, bulk density, whiteness and floating ratio very strictly. We ship our Cenosphere to Japan, Korea, Southeast Asia, America and South America etc markets, mainly used for Foundry & Casting industry, Plastic filter, Insulation material and Refractory materials. Based on professional production, timely delivery and strict quality control, we are confident in providing you with the most suitable Cenosphere.
Technical Specifications
Commodity
Cenosphere / Microsphere
Size
20 - 150 mesh
Density
0.35 - 0.46 g/cm³
True Density
0.75, 0.85, 0.95, 1.05
Floating Ratio
90 - 96%
Melting Point
1500 - 1650 ℃
Chemical Analysis
| Element | % by weight |
|---|---|
| SiO2 | 57 – 60 % |
| Al2O3 | 30 – 33 % |
| CaO | 0.88 – 1.2 % |
| K2O | 1.1 – 1.3 % |
| Fe2O3 | 2.4 – 3.2 % |
| TiO2 | 0.8 – 1.15 % |
| H2O | 0.35 – 0.5 % |
| LOI | 0.85 – 1.15 % |
Grade
Refractory insulation cenosphere
Plastic additive cenosphere
Lightweight castable cenosphere
High-grade paving cenosphere
Oil drilling industry cenosphere
High temp & high voltage insulators
Surface composite cenosphere
Metallurgy casting cenosphere
Packaging
Packing Sizes
25kg, 500kg, 550kg, and 600kg bags.
Quantity / Container
10-12Mt / 20'GP container
22-26Mt / 40'HQ container
22-26Mt / 40'HQ container
Frequently Asked Questions
Q
What are cenospheres and how are they produced?
Cenospheres are hollow ceramic microspheres made largely of alumina and silica. They are produced as a byproduct of coal combustion in thermal power plants, forming through complex physical and chemical transformations at high temperatures ranging from 1,500 to 1,750 °C (2,730 to 3,180 °F).
Q
What are the primary applications of your cenospheres?
Our cenospheres are widely used across various industries, including the foundry & casting industry, plastic filters, insulation materials, metallurgy casting, oil drilling, and refractory materials.
Q
How does your factory ensure the quality of the cenospheres?
Established in 1980 with an annual capacity of 4,000 tons, we enforce strict quality control by taking and testing production samples every half hour. We strictly monitor size distribution, true density, bulk density, whiteness, and floating ratio.
Q
What is the chemical composition of your cenospheres?
Our cenospheres consist primarily of SiO2 (57–60%) and Al2O3 (30–33%). Other constituents include Fe2O3 (2.4–3.2%), K2O (1.1–1.3%), CaO (0.88–1.2%), TiO2 (0.8–1.15%), and minor amounts of H2O and LOI.
Q
What sizing and density specifications do you offer?
We offer various mesh sizes including 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, and 150mesh. The bulk density is 0.35-0.46g/cm³, true density ranges from 0.75 to 1.05, and the floating ratio is maintained at 90-96%.
Q
What packaging options are available for shipment?
We package our products in 25kg, 500kg, 550kg, and 600kg bags. For shipping, we can load 10-12Mt in a 20'GP container and 22-26Mt in a 40'HQ container.