DME Company Hydraulic Locking Core Pull Cylinders

When designing molds with sliding cores, the mold designer is often faced with the challenge of ftting all traditional components in as small a mold base as possible. There are different methods of actuating a sliding core, the most common of which uses horn or angle pins to move the slide when the mold opens or closes. Heel blocks are normally used behind the sliding core to withstand injection pressure acting on the sliding core. Not only do these components use up precious mold space, but they are tied to the movement of the platen. Some molded parts also require that the sliding core be moved prior to opening a mold. While it is possible to use standard cylinders to actuate the sliding core or heel block, typical designs require additional mold design and machining, and waste mold space.