A tunnel kiln is a type of industrial furnace used primarily for firing ceramics and bricks. It consists of a long, continuous chamber where products are placed on a conveyor system. As the conveyor moves through the kiln, the items are gradually heated to high temperatures, allowing for efficient and uniform firing. These kilns are designed for high production rates and energy efficiency. The continuous operation means that while one batch is being fired, another can be loaded, minimizing downtime. This makes tunnel kilns a popular choice in the ceramics and construction industries for large-scale manufacturing.