Plant
Plant & production process
Expanded clay is made from clay — but what decides its quality is heat and time.
- 450,000 m³
- Annual capacity
- 84,000 m²
- Plant area
- 3 lines
- Rotary kiln lines
- 14 countries
- Export destinations
- 210 people
- Employees
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01
Extraction & homogenisation
Clay is extracted from selected deposits and homogenised under cover to limit variation in the chemistry of the kiln feed.
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02
Preparation & granulation
Crushing, moisture adjustment and forming of the clay into green granules of controlled size.
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03
Pre-heating
Moisture is driven off gradually before the firing zone, so granules do not crack as they expand.
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04
Rotary kiln firing
Heating to roughly 1,200 °C. Released gases create the closed cellular structure and the granule expands to several times its original volume.
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05
Controlled cooling
Temperature is reduced in stages to lock in the structure; recovered heat feeds the pre-heater.
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06
Grading & storage
Multi-deck screens separate the standard fractions, which are stored in dedicated silos.
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07
Packing & loading
Loaded in bulk, 1 m³ big bags or 50-litre sacks, with the consignment certificate of analysis.
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