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The Brabender DualTray Feeder is a mass flow metering feeder featuring vertical ingredient flow, which utilises natural bulk ingredient flow and gravity. It is supplied as a loss-in-weight feeder mounted in a free-standing mounting base with load cells.

The operating principle is based on two or more cylindrical feed modules with semicircular feed trays across a part of the modules` cross sections. The modules are configured one above the other in opposite feed directions with the discharge edges of the trays overlapping. Applying vibration changes the angle of repose of the ingredient and induces flow. Following gravity the ingredient runs downwards across the vibrating trays like a cascade, while the flow rate is controlled by variable vibration. Switching vibration off immediately stops the ingredient from flowing because it reassumes its angle of repose. Hence, the feeder is also perfectly suitable for batching.

As the Brabender DualTray Feeder has no rotating parts, it is particularly suitable for damageable bulk ingredients but also for ingredients with grains of different sizes, particularly lumpy media, and fibres.

The Brabender DualTray Feeder was designed for quick dismantling and cleaning. The feed unit is disconnected from the vibration drive by releasing a fixation handle. The feed modules and the outlet cone are connected by clamping rings and can be removed within minutes. The vibration drive remains in place. A sanitary version for food is available.