The packs of frozen mixed fruit or vegetables must contain an accurate mix, to match the on-pack illustrations and contents listing.
Libertas purchased a four-mix Ishida RS-Series weigher with 16 heads. The weigher is divided into four quadrants, each of which has four pool, weigh and booster hoppers. The dispersion table is also sectioned into four parts, each with its own product in-feed. It is able to function as four very fast and accurate separate weighers due to the combination calculation system recently developed by Ishida.
The new weigher means Libertas can pack both bags and trays. Weighed product can be passed directly to a bagmaker or, via a filling system, deposited in a tray. Changeover from bags to trays takes just a few minutes.
The new line is running at up to 35 packs per minute (ppm) for bags and 32ppm for trays. It has doubled production of these products and cut labour by 90%.
Yields have also increased. The accuracy of the Ishida multi-head is such that giveaway on a 500g pack is down from 5g to under 1.5g.
Contact: Ishida