2020.09.28
There are two schemes for ejector pin
Mechanical demoulding scheme: ejector pin (punching) + long spring + cotter pin + ejector seal ring. Hydraulic demoulding scheme: ejector (no drilling) + lengthening rod + spring support + ejector seal ring, and hydraulic demoulding is the main conventional demoulding method. The size of the ejector can be customized according to the requirements.
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