Ceramsite Sand

Short Description:

Ceramsite sand is a black ball shape sand which is made from calcined bauxite. Due to  its almost perfectly spherical shape, Ceramsite sand is widely used in the foundry industry as molding and core sand providing excellent flow characteristics and gas permeation. In core production, binder savings of up to 50% compared to other sands are achievable without loss in core strength. At the same time, Ceramsite sand for foundry use shows excellent surface finish on castings.

Product Detail

Product Tags


• Uniform component composition
• Stable grain size distribution and air permeability
• High refractoriness (1800°C)
• High resistance to wear, crush and thermal shock
• Little thermal expansion
• Excellent fluidity and filling efficiency owing to being spherical
• Highest reclamation rate in the sand loop system

Ceramsite sand1

Application Sand Foundry Processes

RCS (Resin coated sand)
Cold box sand process
3D printing sand process (Include Furan resin and PDB Phenolic resin)
No-bake resin sand process (Include Furan resin and Alkali phenolic resin)
Investment process/ Lost wax foundry process/ Precision casting
Lost weight process/ Lost foam process
Water glass process

Ceramsite sand1

Ceramic Sand Property

Main Chemical Component Al₂O₃ 70-75%,


Grain Shape Spherical
Angular Coefficient ≤1.1
Partical Size 45μm -2000μm
Refractoriness ≥1800℃
Bulk Density 1.8-2.1 g/cm3
PH 6.5-7.5
Application Steel, Stainless steel, Iron

Grain Size Distribution


20 30 40 50 70 100 140 200 270 Pan AFS Range


850 600 425 300 212 150 106 75 53 Pan
#400 ≤5 15-35 35-65 10-25 ≤8 ≤2 40±5
#500 ≤5 0-15 25-40 25-45 10-20 ≤10 ≤5 50±5
#550 ≤10 20-40 25-45 15-35 ≤10 ≤5 55±5
#650 ≤10 10-30 30-50 15-35 0-20 ≤5 ≤2 65±5
#750 ≤10 5-30 25-50 20-40 ≤10 ≤5 ≤2 75±5
#850 ≤5 10-30 25-50 10-25 ≤20 ≤5 ≤2 85±5
#950 ≤2 10-25 10-25 35-60 10-25 ≤10 ≤2 95±5


Ceramsite Sand, the revolutionary product that has transformed the foundry industry. Made from high quality calcined bauxite, this black ball shaped sand has been designed to provide superior performance in molding and core sand applications.

One of the key features of Ceramsite Sand is its almost perfectly spherical shape. This unique shape creates excellent flow characteristics and gas permeation, making it the ideal choice for both mold and core production. In fact, binder savings of up to 50% have been achieved compared to other sands, without any loss in core strength.

In addition to its superior molding and core sand properties, Ceramsite Sand for foundry use also delivers an excellent surface finish on castings. This, combined with its high refractoriness (1800°C) and resistance to wear, crush and thermal shock, makes it the go-to choice for a wide range of foundry applications.

But that's not all - Ceramsite Sand also boasts a stable grain size distribution and air permeability, coupled with little thermal expansion. This ensures that the sand remains uniform in composition, and provides excellent fluidity and filling efficiency.

And, with the highest reclamation rate in the sand loop system, Ceramsite Sand is not only efficient but also environmentally sustainable. It can be used again and again, resulting in significant cost savings for foundries over time.

In conclusion, Ceramsite Sand is a game changer in the foundry industry. Its unique properties and superior performance have revolutionized the way foundries operate, and it continues to be the preferred choice for foundries around the world. Try it for yourself and experience the benefits of Ceramsite Sand, the ultimate sand solution!

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