Multihead weighers work by using combination theory to achieve high speed and exceptional accuracy. Product is distributed across several lanes that incorporate high accuracy load cells. Each lane encompasses a weigh bucket that measures a fractional weight of the total target weight. The scale’s computer then calculates thousands of possible combinations within a fraction of a second and selects the group of weigh buckets whose combined weight is closest to the set target weight without dumping an underweight. By choosing the optimal combination rather than relying on a single measurement, multihead weighers minimize product giveaway, maintain consistent pack weights, and deliver precise, efficient operation even at high production speeds.