Lightweight Cenosphere Fillers for Casting Applications - Top China Suppliers & Factory Direct Solutions
Cenospheres Production and Our Factory
Strict Quality Control
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.
Global Supply Chain
We ship our Cenosphere to Japan, Korea, Southeast Asia, America and South America etc markets.
Key Applications
Mainly used for Foundry & Casting industry, Plastic filter, Insulation material and Refractory materials.
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 (Loss on Ignition) | 0.85 – 1.15 % |
Available Grades
Packaging & Logistics
Packing Options
Available in 25kg, 500kg, 550kg, and 600kg bags to suit different industrial requirements.
Load Quantity
20'GP Container: 10 - 12 Mt
40'HQ Container: 22 - 26 Mt
Frequently Asked Questions
What are Cenospheres and how are they formed?
Cenospheres are hollow ceramic microspheres made largely of alumina and silica. They are produced as a byproduct of coal combustion in thermal power plants at temperatures of 1,500 to 1,750 °C (2,730 to 3,180 °F) through complex physical and chemical transformations.
What is your factory's production capacity and experience?
Established in 1980, our factory has over four decades of experience, manufacturing approximately 4,000 tons of high-quality cenospheres yearly with strict quality controls.
How do you ensure the quality of your Cenospheres?
During production, we withdraw and test samples every half an hour. We strictly monitor and control size distribution, true density, bulk density, whiteness, and floating ratio to ensure consistent, high-standard outputs.
What are the primary applications of Cenospheres?
They are mainly used in the Foundry & Casting industry, plastic filters, insulation materials, refractory materials, oil drilling, lightweight castables, and high-temperature/high-voltage insulators.
What is the typical chemical composition of your Cenospheres?
Our cenospheres typically consist of 57–60% SiO2, 30–33% Al2O3, 2.4–3.2% Fe2O3, and smaller fractions of CaO, K2O, TiO2, and H2O, with a Low Loss on Ignition (LOI) of 0.85–1.15%.
What packaging and shipping options do you offer?
We supply cenospheres in 25kg, 500kg, 550kg, and 600kg bags. Shipping capacities range from 10-12 Mt for a 20'GP container to 22-26 Mt for a 40'HQ container. We regularly export to Japan, Korea, Southeast Asia, America, and South America.