Smartflow Thinswitch® limit switches, available from Tasman Machinery , are specifically designed to confirm the ejector plate has returned before permitting the mould to close, in injection moulding tools.
With 3mm or 4mm reset buttons the Thinswitch® is small enough to fit inside the ejector housing. The limit switches can be mounted using integral mounting holes or with a bracket that allows the switch to slide into place from the edge of the mould base.
By assisting in preventing mould crashes, thin switches have proved popular with moulders the world over as an easy and cheap way to ensure costly damage to moulds is kept to a minimum.
The limit switches are available in a standard version with a temperature rating to 80°C or a high temperature version rated to 121°C. A liquid resistant version is also available.