This part is used to strip the runner off the sucker pins.

The channels milled into a plate in an injection mold that allows material to flow from the machine nozzle to the cavity.

Used on cylindrical shapes, this gate encircles the core to permit the melt to first move around the core before filling the cavity.

These are used to return the ejector plates to the home position to prevent damage to the cavity in case the ejector plates are inadvertently left forward when the mold closes. The pins on the outside corners ejector plate used to return ejector system so the mold closing action does not have the ejector pins […]

These are used on round components such as stripper rings to keep the strippers in the plates from falling out. Care must be taken to make enough room in the counter bore to allow for the retaining ring to open up adequately during installation. The designer must also allow for access to for the retaining […]

Sometimes the rails are part of the ejector housing. They are used support the mold on each side of the ejector plates. The mold identification plate is usually mounted on the side of the rail. Rest Buttons- Buttons used to support the ejector plate and keep it flat. They are usually 5/16 in diameter and […]

These are milled slots used to help the toolmaker disassemble the plate. The size of the slots will allow for most standard pry bars to be place between the plates and force the plates a part. Without the pry slots tool disassembly can be very difficult, especially when plates are doweled together.

A model suitable for use in complete evaluation of form, design, and performance.

This consists of the area of the part that faces you when you look inside a mold. One simple way to describe it is that if you were to shine light on the part the projected area would be the shadow. Once you calculate the projected area you can use a general rule of 3-ton/square […]

Pipe plugs are used to plug water lines that are drilled into plate components, cores and cavities. Typically the plugs sizes are 1/16 to % N.P.T. standard.