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Single-Pass vs Triple-Pass Rotary Dryer — Decision Tool
Answer 4 questions about your application. We’ll match you to TCG (single-pass) or TCSG (triple-pass) with the reasoning.
System Standby:
Awaiting Application Parameters
Awaiting Application Parameters
Configuration Comparison Matrix
| Dimension | Single-Pass (TCG) | Triple-Pass (TCSG) |
|---|---|---|
| Footprint per ton/hr | Larger (long single drum) | ~50% smaller |
| Initial moisture tolerance | ≤45% stable | Up to 55% variable |
| Moisture precision | ±3% | ±1.5% |
| Retention time | 20-40 min single | 10-20 min staged |
| Heat transfer efficiency | Standard | Heat re-used across 3 passes |
| Capex | Baseline | +20-30% |
| Maintenance complexity | Simpler (1 drum) | Higher (3 concentric) |
| Service life | 15+ years | 12+ years |



