activeLock Lockable Non-Return Valve

Video simulation of Sumitomo (SHI) Demag’s activeLock (lockable non-return valve) for precision injection molding applications. Active closing of the non-return valve at the end of the dosing process leads to increased process stability. A defined closing motion through contra-rotation of the screw closes the non-return valve and provides for absolutely constant and actively controllable closing behavior. Process stability is increased, variations in the melt cushion and the shot weight are reduced, and the risk of rejects is minimized.

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