Insulin pen piston

At the Plast 2015, Netstal demonstrated its expertise within the industry of medical technology through the production of insulin pen piston guides on an Elion 1750-510. The polyoxymethylene (POM) parts were manufactured on a 16 cavity mould from Kebo in a cycle time of approx 8.5 seconds, which is very fast for this application. The requirements placed on manufacturers of medical technology in terms of cleanliness, precision, short cycle times and low material costs are very high.

The extremely complex processes of the mould and core traction movements during mould removal required a very flexible and above all freely configurable control. The aXos control supported the process very efficiently in this case. Furthermore, the thermal and geometric properties of the moulded part were very complex, so for example, the very small core diameters had to be cooled skillfully in order for the process time to be as short as possible.

Netstal also demonstrated the manufacture of a 13 gram polystyrene cup on an Elion 1200-530 with a 2 cavity mould. The cycle time of this application was extremely fast, approx 2.3 seconds. The partner for the mould was the French firm SN Caulonques. The process was automated using a handling device supplied by the Italian company Campetella. For material preparation and cooling, components from the Italian company Moretto were being used.