Ceramic Balls | Various Sizes | Multiple Formats

Inert Ceramic Spheres Bulk | Industrial Support

Inert ceramic spheres are made of silica with an alumina content above 20% by weight. They feature high mechanical hardness, low porosity, and a negligible internal surface, which minimizes interaction with reagents and moisture adsorption. They are suitable for high-temperature processes, with operating temperatures up to 1000 °C, and do not release catalytic substances or contaminants.

Main Characteristics

The properties of inert ceramic spheres make them suitable for industrial applications requiring mechanical stability, chemical inertness, and thermal resistance over time, thanks to:

- high mechanical hardness
- high resistance to thermal shocks
- low moisture adsorption
- chemically inert, do not release catalytic substances
- suitable for operating temperatures up to 1000 °C

Technical Table – General Specifications

Parameter	Value
Type	Silica-based ceramic
Size range (nominal, inch)	1/8” – 1/4” – 1/2”
Overall density (kg/m³)	1350 ± 50
Internal surface (BET, m²/g)	< 0.1
Water adsorption (wt. %)	< 3.0
Hardness (Mohs scale)	> 7
Average crushing force (kg)	from 23 for 1/8" to 1000 for 1.0"
Chemical composition (wt. %)	>20 Al₂O₃ <80 SiO₂ <1.5 Fe₂O₃ <2 Ti₂O₃ <5 Sum (Na₂O, K₂O, CaO, MgO) Soluble Fe₂O₃ <0.1
Maximum operating temperature (°C)	1000

Technical Table – Available Granulometries

Size (Inches)	Nominal Diameter (mm)
1/8''	approx. 3 mm
1/4''	approx. 6 mm
1/2''	approx. 13 mm

Main Industrial Applications

Inert ceramic spheres are used in industrial and plant environments where a mechanically resistant, chemically stable support material with minimal interaction with ongoing processes is required:

- support for inert beds for catalysts and adsorbent materials
- refining and petrochemical processes
- gas industry and chemical treatment
- high-temperature industrial applications requiring chemical inertness and mechanical stability

Packaging and Availability

Available in various formats to meet industrial and operational needs, ensuring flexibility in warehouse management. Orders can be placed directly online:

2 kg jar – for samples, laboratory tests, or small plants
10 kg container – convenient size for medium volumes
25 kg drum – standard size for industrial use
70 kg drum – for high-volume supplies and efficient storage

Granulometries available in ready-to-ship: 1/8” (approx. 3 mm), 1/4” (approx. 6 mm), and 1/2” (approx. 13 mm).

Safety and Compliance

Inert ceramic spheres are chemically stable, non-toxic, and suitable for industrial applications. They do not release catalytic substances and do not interact with reagents.

Price and Custom Orders

The indicated price refers to the quantity selected in the product sheet, VAT included.
For recurring supplies, large quantities, or specific requirements, a custom quote can be requested by writing to info@silica-gel.it.