This Bühler OTW300 is a continuous fluidbed dryer — sometimes referred to as a fluid bed dryer — designed to dry bulk particulate or granular products in a continuous, steady-state process rather than in batches. Bühler is a long-established Swiss engineering group known for processing and handling equipment across the food, feed, and chemical industries, and its fluid bed dryers are used in applications demanding precise moisture control and high throughput.
The machine is built from stainless steel grade Ti), making it well suited to food-grade and corrosive-product environments. It offers a fluidisation surface area of 3 m² and a product flow rate of 2,500 to 4,500 kg/h, giving buyers a clear indication of throughput capacity. Product enters and exits through DN200 connections, while air inlet and outlet ports are sized at DN600 to accommodate the substantial airflow the process requires.
Air handling is provided by a Fima blower delivering 16,200 m³/h of airflow. The main drive motor is rated at 75 kW, running on 290/500 V at 2,970 rpm, and the machine is fitted with a variable speed drive allowing the vibro motor to operate across a range of 32 to 171 rpm. This adjustability supports fine-tuning of residence time and drying intensity for different products.
A cooling belt is included as part of the assembly, driven by a separate 0.55 kW motor (290/500 V, 1,380 rpm) with a belt speed range of 34 to 171 rpm, enabling product to be cooled directly after drying within the same unit. The machine's footprint is 4.80 × 2.40 m with a total height of 1.20 m, and it carries serial number . The unit is located in Barneveld, Netherlands, and was manufactured in 2007.
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