• Allows to increase the stroke of selected ejectors within the tool.

• Cylindrical shape for easy installation.

• Maximum working temperature of 150°C.

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• To be used with Headless Ejector Pins.

• Compact Design.

• Pins can be replaced from Parting line, eliminating need for removing mold and disassembly.

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• This unit divides the ejection travel in two predefined steps.

• Useful to obtain automatic ejection strokes in molds with sprung cores and collapsible cores units.

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• Compact Double ejection system where the rear plates stop, and upper plates go for the full ejection stroke.

• Can replace a Guide - Bushing set to keep the ejection plates guided/synchronized/together. 

• Compact Double ejection system where the  rear plates continue with the complete ejection stroke when the upper set stops.

• Can replace a Guide - Bushing set to keep the ejection plates guided/synchronized/together. 

• Simple mechanical double ejector system.

• Minimum space required for installation.

• Avoids complex systems.​​

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• Compact Internal Ejection System designed to work as a pre-opening plate movement of the mold. or as a double ejection system, controlling 2 sets of ejector plates when the machine actuates the upper ejector plates set.​

• The rear plates stop and the upper plates continue to the full ejection stroke.
  As the assembly of the units is not in the center of the mold, but within the ejector frame, the space required for installation is drastically reduced.

• Developed for medium/large tools.

• Can also be used to control two stage opening of the tool.

• The upper ejector plate stops when reaching the core plate, and the rear plate continues until it reaches the upper plate. As the assembly of the units is not in the center of the mold, but within the ejector frame, the space required for installation is drastically reduced.

• Developed for medium / large tools.

• Double ejection up to 56mm.

• Two different options: as a pre-opening plate movement of the mold , or as a double ejection system, controlling 2 sets of ejector plates when the machine actuates the upper ejector plates set. Simple external installation, enables easy adjusting and maintenance.​

• The ejector plates are separated, the machine actuates the lower set of ejector plates. The upper set stops at the core plate, and the rear plate continues to travel until it reaches the upper plate.

• Simple external installation, enables easy adjusting and maintenance.

• Allow synchronized mold plate openings, regardless of their location.

• Simple external installation, enables easy adjusting and maintenance.

• EB - Optional accessory to allow external attachment for the EX-EY-EZ Double Ejection solutions by CUMSA.​

• EW - Extension Rods to use EX, EY and EZ systems in taller molds.

• Guarantees that the second opening stays closed until the first is completely open.

• 50 Kg. opening load required per unit (Minimum of 2 parts required).

• Possibility to change inner spring from the parting line.​​

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• These are hardened rods with lengths of up to 600 meters.

• The required length of ejector pin can be cut from this rod thus eliminating the need to stock various different ejector pins.

• Useful for molds that require delayed opening of parting line.

• Resistance can be increased by adding clips.

• Maximum working temperature is 150°C (302°F).​

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