FD3500 Tunnel freeze dryer The FD3500 freeze dryer represents the next generation of freeze dryer solutions meeting the growing demand for high capacity within the food, fruit and vegetable production. The dryer has been designed combining simplicity, high capacity with a manual operation. Freeze drying process The freeze dryer is a single chamber bulk freeze dryer using trays placed in racks. The technical solution is built on the well-known and proven single chamber tunnel system. The system can (as an option) be equipped with a door at each chamber end, allowing wet and dry room. As a standard feature it includes continuous de-icing. The minimalistic onboard control system offers 100% process control and automatic drying process as well as easy reporting and documentation. The freeze dryer is operated via a touch panel with a graphic overview of the entire system