This Bühler OTW-150 CRF FL is a continuous fluidised bed dryer — sometimes referred to as a fluid bed dryer — a type of industrial drying machine used to reduce the moisture content of bulk particulate and granular materials through the controlled application of heated or conditioned air in a fluidised state. Bühler is a well-established Swiss manufacturer of processing equipment serving the food, feed, grain milling, and chemical industries, among others, and is widely recognised for its engineering of pneumatic conveying, milling, and thermal processing systems.
This machine was manufactured in 2012 and is offered used from Barneveld, Netherlands. The body is fabricated from stainless steel grade 1.4541 (equivalent to AISI 321), a stabilised austenitic alloy suitable for process hygiene and elevated-temperature applications. The dryer operates as a single-section continuous unit with a fluidised bed surface area of 1.66 m² and bed dimensions of 2,024 × 822 mm.
Product is fed and discharged through DN200 connections, while process air enters and exits through DN400 flanged connections. The drive motor is rated at 0.55 kW, 500 volt, running at 1,360 rpm, and the unit is equipped with a variable speed drive providing a rotation range of 34 to 171 rpm. A pulsator with an electric motor is also included, and the unit is fitted with a switch. The machine carries serial number .
Operating parameters are well defined: the maximum process temperature is 200 °C, and the system is rated for a pressure range of 100 mbar positive to −50 mbar. Air handling capacity is approximately 8,160 m³/h, supporting a material throughput of up to 2,250 kg/h. The overall floor footprint is 3.40 × 1.30 m, and total installed height is 2.20 m.
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