Multihead Weighing & Packaging Systems

A single weighing hopper filled to a target has to stop mid-flow, which is slow and inaccurate with irregular pieces. A multihead weigher avoids this: its hoppers each hold a random partial weight, and the combination closest to the target is chosen. That is why it is the standard doser for frozen vegetables, nuts and snacks, where piece weight varies.

Give-away — product above the declared weight — is the running cost a weigher is chosen to control; how low it goes depends on the product and the target weight.

Sticky products need dimpled or scraper contact surfaces or screw feeders; fragile products need reduced drop heights and gentle hoppers; frozen products need a weigher suited to cold and wet conditions. These choices are made per product, which is why DOKTEK asks for a product description or sample first.

The weigher and the packer run as one system: the timing hopper releases each portion when the packer is ready, and the packer tells the weigher when to discharge. The vertical packaging page explains the bagger, the pouch page the premade-pouch alternative.

Upstream, DOKTEK's processing and inspection equipment can feed the weigher directly — for example cut vegetables after vision inspection.

Hoppers and chutes are removable without tools for cleaning; the IP protection of the weigher is chosen for the cleaning regime. Platforms have guardrails and the packer's moving parts are guarded and interlocked; CE documentation can be prepared according to the system scope.