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Mould components Sprung core in a new design — precision angled holes no longer required
Mould component supplier Cumsa announces the first evolution of its Original sprung core designed in 1995. Amongst others, the Vertical Sprung core installation eliminates the need of machining precision angled holes.
The newly designed sprung core from Cumsa is available in width between 6 and 18 mm, and a maximum height of 26 mm. It allows demolding of undercuts up to 5.5 mm, with only 30 mm of ejection travel.
As a standard part, it is available in lengths of 125 mm, 140 mm or 175 mm, depending on the model. The Vertical Sprung core includes a non-rotation flat on the back of the shank. Adding the AP extension allows for the increase of the total length up to a maximum of 315 mm.
It eliminates the need of machining precision angled holes and requires less space on the ejector plates and the cavity plate since it is installed as an ejector pin. The component offers cost savings by reducing the time required for setting up and adjustment.
If the part is correctly installed, it can guarantee up to 1,000,000 cycles. Special sprung cores, with larger and wider dimensions, are available upon request.