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High-End LIW Feeder Collaboration

September 14, 2017
Van Beek/Penko loss-in-weight feeder
Van Beek/Penko loss-in-weight feeder

To meet the increasing demand for accurate and reliable recipe dosing in process lines, Van Beek has partnered with weighing specialist Penko to develop the LIW (loss-in-weight) feeder.

The LIW feeder is an advanced dosing screw that can be used in processes that require you to accurately add a set amount of additives to the correct ratio as gradually as possible. The accuracy of this machine is a major advantage in the food, chemical, and pharmaceutical industries.

The LIW feeder consists of a screw conveyor on three accurate Penko weighers that monitor the quantity of product in the screw. By monitoring the weight decrease (Δm) and by linking this data to the time (Δt), the actual material flow is shown. Based on the difference to the required material flow, the software calculates, whether to adjust, if necessary, the rotation speed of the screw, so that it delivers precisely the required weight per hour. It is also possible to adjust the release rate of the screw to the amount of product flow, master slave, so that the final product ratios always remain the same.

“In principle, the basics of this machine are the same as they were decades ago,” Van Beek sales engineer Roel Kneepkens explains. “Because of stricter safety standards and the continual search for the perfect dose with as little waste as possible, manufacturers are demanding increased accuracy. By combining our expertly finished screw conveyors with Penko's sophisticated weighing equipment, we are able to meet this demand.”

Van Beek has many years of experience of incorporating LIW feeders into process lines, and has collaborated with various weighing manufacturers. Thanks to the collaboration with Penko, Van Beek has a ready-made technical background for the machine, and it only requires customizing to fit into the process line.

Van Beek, Drunen, The Netherlands +31(0)416 37 52 25 www.van-beek.nl

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