Straight Tunnel Kiln with 20-Hour Firing Cycle and 50-60% Fuel Efficiency for Industrial Ceramics Production
The straight tunnel kiln is a continuous industrial furnace featuring a long, straight tunnel design with fixed walls and roof. Kiln cars operate on tracks along the bottom, transporting products through preheating, firing, and cooling zones for efficient thermal processing.
Combustion equipment located in the middle creates a fixed high-temperature firing zone. High-temperature flue gas flows toward the kiln head to preheat incoming products, while cold air introduced at the kiln end cools finished products, with heated air recycled for drying applications.
- Continuous production with short 20-hour firing cycles versus 3-5 days for conventional kilns
- High thermal efficiency with 50-60% fuel savings through counterflow heat exchange
- Large output capacity with consistent product quality and reduced breakage rates
- Labor-saving operation with external loading/unloading and simplified controls
- Extended 5-7 year service life before maintenance due to stable temperature operation
- Precise temperature control across preheating, firing, and cooling zones
| Parameter | Specification |
|---|---|
| Firing Time | Approximately 20 hours |
| Fuel Savings | 50-60% compared to conventional kilns |
| Service Life | 5-7 years before major maintenance |
| Construction Options | Built structure or assembled steel framework |
Ideal for firing blue bricks, tiles, ceramic products, and new energy materials. Suitable for large-scale production of items with similar firing requirements.
Higher initial investment required due to substantial materials and equipment. Limited operational flexibility as firing regime cannot be arbitrarily changed once established.
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