08/28/2014

Trelleborg Sealing Solutions Germany GmbH

Automation meets super clean requirements

Nipple protector out of liquid silicone rubber

Perfect flash-free molding is essential in some of the parts produced in Liquid Silicone Rubber (LSR) such as nipple protectors produced for nursing mothers.


The nipple protector is produced in a cleanroom to prevent its high gloss finish being blemished by airborne particles such as dust. The part cannot be manually handled, as the slightest fingerprint would spoil its crystal clear finish. Therefore the nipple protector is removed robotically from the tool and placed on a belt feeder that takes the product through post-cure and straight into the box it is shipped in.


Timings between all process steps are perfectly aligned to have a continuous process flow. The part must be flash-less, as any flash at the nipple shield hole would prevent effective milk delivery from a nursing mother.