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 Multihead systems (also referred to as Combination Weighers) contain an array of Weigh Buckets fed by vibratory Bucket Feeders. Product is evenly distributed to the Bucket Feeders via the Cone Feeder. The Cone Feeder can be fed by a variety of bulk handling methods.Multihead systems vary from linear systems in that no single Weigh Bucket will ever contain the desired product quantity. Instead, the desired quantity is made by combining the quantity of multiple Weigh Buckets. This method achieves three major benefits over linear systems: 1) Increased Production: Because of its multiple Weigh Buckets, a multihead system will always work on multiple cartons at a time. 2) Increased Accuracy: By combining the contents of multiple Weigh Buckets, a multihead can increase accuracy by only making combinations within a specified +/- tolerance. 3) Decreased Rejects: In a linear system, if the quantity is exceeded, the contents of the Scale Hopper must be rejected. Because no single Weigh Bucket ever contains the full quantity, rejects are virtually eliminated. To increase the performance of a multihead system, there are two enhancements that can be made:
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