To produce them cost-effectively you need to keep rejects to a minimum. And that’s where high-quality precision moulds make all the difference, because the better the quality, accuracy and service life of the mould, the more efficient your mass production.

The special moulds used for screw caps are usually turned from steel and then milled or injection moulded. In one mechanical post-processing stage (or two depending on the application), the mould is smoothed and polished so that the plastic caps produced on it will separate without sticking or residues, and without affecting the cap geometry. So the smoother the surface, the longer the mould provides top performance.