Have you ever lost a batch of high-value mosaic tiles due to unexpected deformation or collapse during kiln firing? You’re not alone. In fact, over 60% of ceramic manufacturers report tray-related defects as a top cause of production loss—especially in the 1000°C–1400°C range where thermal stress peaks.
Traditional clay or basic alumina trays often fail under repeated thermal cycles. Their poor heat resistance leads to warping, cracking, and even complete structural failure. But here's the good news: switching to composite corundum-mullite trays can reduce tray failure by up to 75% and increase kiln throughput by 15–20%, according to data from a leading tile producer in Italy.
| Performance Metric | Traditional Clay Tray | Composite Corundum-Mullite Tray |
|---|---|---|
| Thermal Expansion Coefficient (ppm/°C) | ~6.5 | ~3.2 |
| Flexural Strength at 1200°C (MPa) | 25–30 | 55–65 |
| Wear Resistance (mg/cm²) | ~150 | ~40 |
These numbers tell a clear story: composite corundum-mullite trays offer better dimensional stability, higher mechanical strength, and significantly improved wear resistance—critical for consistent tile quality across multiple firings.
A mid-sized manufacturer in Castellón was experiencing frequent tray failures when producing glazed mosaics at 1350°C. After switching to our custom-designed composite trays, they saw:
This isn’t just theory—it’s proven performance in real-world conditions.
If you're serious about improving your ceramic production efficiency and reducing waste, it's time to rethink how you choose your kiln trays—not just based on cost, but on long-term value.
Download Our Free White Paper: "How to Select the Right Kiln Tray for Ceramic Production"
