In the mid-1990s, Spain-based Cumsa said it invented a revolutionary concept that transformed the way moulds were designed with its Sprung Core. Two decades later, the company has introduced a new revolutionary demoulding system for undercuts.
Today, two decades later, Cumsa says it has introduced a new revolutionary demoulding system for undercuts, known as the Smart Worm Pin and Smart Worm Lifter. Both components, according to the company, combine the flexibility of its predecessor by having a mechanical system.
Cumsa's R+D+i team that designed and developed the Smart Worm Pin and Smart Worm Lifter had focused on one objective, namely, to change the undercuts in demolding, it noted.
The Smart Worm Pin, said to be a completely mechanical solution, offers high flexibility and overcomes most small undercut challenges that designers, mould builders and moulders encounter daily. Designed for 30 and 60-mm ejection strokes, it allows for angles of up to 6°, which enables the customer total freedom to design the insert as per their needs. Furthermore, it is easily assembled and installed.
The Smart Worm Lifter complements Cumsa's Double Rack system, allowing undercut demoulding with 100 and 125-mm strokes (extensions are supplied as well as guiding bases, which need no unscrewing). The Lifter also allows for angles of up to 6°, thus the customer can manufacture insert according to his needs. Moreover, the Lifter incorporates the revolutionary insert fixing system Fast Fit (used in Double Rack systems successfully) and also a simple fixing system that allows adjustments in height of +/- 2mm.