High-Precision Checkweighing for Leading Paint Manufacturer

The project had a clear goal, namely to provide a highly efficient weighing solution that also covers an exceptionally large weighing range. The manufacturer’s weighing process was further complicated by the different properties of the render and paint products, for example the flow rate. As a result, the individual products had to be assigned to certain filling plants and it was not possible simply to group the production lines according to filling amount. A flexible weighing solution was required that covers the ranges from 1–50 kg for the checkweighing required downstream.

The  special  solution  created by Minebea Intec consists of a weighing platform IS (ISEDE- 50-OAW), which is defined as a multi-interval scale with a duel range capability, up to 20kg has a resolution of 2g and to 50kg a resolution of 5g readability. This resolution meets the requirement of the German Verpackungsverordnung [Packaging regulation] and it is the only solution on the market with this special weighing range. The connected weight controller Maxxis 5, is a freely programmable terminal and with an “Automatic Checkweigher” project application, carries out the control tasks and communicates with the higher-level control unit directly via digital signals or via the ProfiNet field bus. The data for inspection is transmitted via OPC to the weight controller Maxxis and forwarded to the SPC Enterprise for logging.