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Micro-batch feeders reducing compaction in material movement

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article image Micro-batch feeder for metallic powders
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WAM Australia  presents a range of micro-batch feeders designed for continuous volumetric feeding of powders and granular materials without causing the formation of lumps or bridges.

Designed to ensure accurate feeding of powdery or granular materials, the MBF micro-batch feeder consists of a steel-reinforced SINT engineering polymer body, a horizontally mounted rotating agitator tool, a feeder screw beneath the agitator tool, a feeder pipe enclosing the protruding feeder screw, and one drive unit each for the agitator and feeder screw. The feeder is optionally available with the body entirely manufactured in stainless steel.

The MBF series micro-batch feeders are particularly suitable for materials with poor flow that tend to clog, along with adhesive products. The MBF series is being successfully used in industries such as food, building, plastics, chemicals, packaging, mining and water treatment.

Fed through a bag opening hopper, a bulk bag discharger, or another feeding device, the agitator tool manages to keep the material flowing, simultaneously reducing the possibility of formation of lumps or bridges.

Selecting the feeder screw is based on the size of the product particles. For example, fine, heavy materials call for tapered screws with reduced pitch flights, while granular, lighter materials require standard pitch cylindrical screws. Poorly flowing products with cohesion or bridging problems are homogeneously fed into the feeding zone by the blending shaft, which is shaped according to the product properties.

MBF micro-batch feeders can also be supplied with alternative feeder screws, blending tools, and various accessories depending on the user's individual requirements. MBF series micro-batch feeders are supplied in food-grade versions with FDA approval on request. The MBF can be supplied with an optional loss in weight system where accurate feeding is required for dosing and batches.

Tests on product flow and material stress have been carried out to establish optimum body geometry. Agitator and feeder tool geometry and materials have also been tested before choosing an optimal steel and engineering SINT polymer composite.

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