The current Modulfill VFS-C can filler is no longer driven by the seamer via a mechanical interface; rather the machine itself is fitted with energy-efficient servo-drive motors, with the main drive located inside a grease-free oil bath, which means that the oil is circulating and thus automatically filtered. The big advantage here is this: grease lubrication is no longer necessary, which firstly improves the hygiene levels involved and secondly requires less maintenance.
Nor is the new filling valve any longer mechanically controlled by means of a lifting cam but electro-pneumatically instead. Since this obviates the need for any mechanical components, the filling valve’s hygiene is enhanced, as is its flexibility because it is now user-programmable. During filling, an inductive flow meter monitors the amount of liquid flowing in. A format-flexible pressing-on unit in the filler, moreover, enables more than one can format to be handled without having to fit a different set of change parts. “The things that have proved particularly persuasive for us are the valve’s high filling accuracy and the low oxygen pick-up during filling,” says Frank Pauli.
And Ulrich Stiebeling adds: “Another great advantage is the machine’s very good accessibility, which has a beneficial effect on automatic exterior cleaning with hot-water flushing, and thus on the hygiene levels, too.”
Yet another special feature is the use of the Robobox T-GS grouping system with tripod technology, premiered at the drinktec 2017, upstream of the palletiser. It is thanks to this system that the line output stipulated (50,000 cans an hour) could be achieved with only one module in a compact configuration. For the predecessor model, two modules would have been required. Further advantages: with its upsized working area and any desired swivel range, the Robobox T-GS grouping system is able to form the layers with even greater flexibility. What’s more, the lightweight and nonetheless sturdy machine’s operating functions are maximally gentle on the product “because the Robobox guides the trays, it doesn’t push them,” explains Rainer Bub. “There are no malfunctions with this machine.”