At Unikiln, we believe that engineering solutions must meet reality, not just theory. For clay roof tiles, achieving the right particle structure is more important than pushing for ultra-fine grinding by Ball Milling.

Our target: a D50 of 10–12 μm with a single-peak, moderately wide PSD. This ensures plasticity, green strength, safe drying, and dimensional stability after firing.

To achieve this, we employ a semi-dry processing route: carefully controlled crushing, Pendulum Mill PSD shaping, roller refinement, and precision water mixing. Unlike wet ball milling, this method preserves a supportive particle skeleton, reduces drying sensitivity, and optimizes energy efficiency.

In tropical regions in Southeast Asia or South Asia, raw clay moisture can be a major challenge, reaching 15–25% seasonally. Unikiln addresses this with a brand-engineered upstream moisture control system:

1.Stockyard design: hardened base, drainage slope, roof cover, controlled pile height, strong ventilation, and periodic turning. With sufficient storage time, clay moisture is naturally reduced to below 10%.
2.Hammer Crusher with assisted drying: low-temperature waste heat (40–60°C) from kiln exhaust removes residual moisture while maintaining mineral integrity.

The result: a stable semi-dry feed (6–8% moisture) that allows our Pendulum Mills to do what they do best — precisely shaping the PSD rather than fighting water.

At Unikiln, this combination of materials science, process engineering, and climate-smart design ensures consistent roof tile quality and industrial efficiency, even in challenging environments.