ErgoBloc LM in the smallest size
For precisely this reason, at the new plant in Macedonia Nera Kritis opted once again for this block solution from Krones – this time in the compact LM variant. With a rating of 25,000 containers per hour, it ranks among the smallest sizes. Only four operators are needed for handling the entire production operation, including the supply of input material and to the warehouse.
The wet-end block incorporates a Contiform 3 Pro stretch blow-moulding machine, a Contiroll wrap-around labeller, and a Hydrofill filler. Since Nera Kritis manufactures its own moulds, the two companies work closely together to ensure that the moulds and the system are perfectly matched. The bottle handling parts, too, have been precisely designed to suit the different moulds produced in parallel.
The line includes not only the ErgoBloc LM, but also a Checkmat, which uses infrared rays to monitor the fill level and a camera to inspect the label and closure placement. For this, in particular, the four containers being produced simultaneously pose a certain challenge, “since depending on the shape of the bottle involved the optical fill levels will vary as well,” explains Giannis Kampouridis, Production Manager in the Nera Makedonias plant. “But the specialists from Krones did a great job, and programmed the Checkmat so accurately that it detects the different container shapes even if they are not passed through the unit in a defined sequence.”
The bottles are packed by a Variopac Pro with an integrated handle applicator, after which a Modulpal 2AC then palletises the shrink-packs, whereupon a PalCo pallet conveyor takes the pallets via an elevator to the store on the first floor.