Ejection Mechanisms

What is the ejection mechanism?

The ejection mechanism is a mechanism used in injection molds to eject the molded plastic parts from the mold. The function of the ejection system is to eject the product from the mold smoothly, ensure the demoulding quality, and ultimately determine the quality of the product.

Common ejection mechanism types

Ejector ejection mechanism:

This is one of the most common and simple ejection methods. Through the ejector set on the mold, the product is ejected from the mold by mechanical force or pneumatic force. Suitable for smaller products and simple mold structures. ‌

Slider ejection mechanism:

Suitable for the need to set a slider in the mold to realize the ejection of complex shapes or large-sized products. The slider is usually connected to the slider guide of the mold, and the product is ejected from the mold through the movement of the slider guide.

‌Ejector plate ejection mechanism:

The product is ejected through the ejector plate, which is suitable for larger products and situations where a higher ejection force is required.

‌Pneumatic ejector mechanism:

Use the air pressure provided by the cylinder or pneumatic components to eject the product from the mold. It has the characteristics of being fast and stable and is suitable for situations with high requirements for demolding speed and ejection force.

Hydraulic ejector mechanism:

Use the hydraulic pressure provided by the hydraulic system to eject the product from the mold. It has a large ejection force and precise control ability.

It is suitable for demolding large products or special materials with high requirements for ejection force.

‌Multi-component integrated ejector mechanism:

Combining several ejector mechanisms to achieve the purpose of ejection, such as ejector rod plus ejector plate, ejector tube plus ejector plate, etc. ‌

‌Inclined slider ejector mechanism:

When the plastic part has inner and outer holes or side concave that are different from the mold opening direction, an inclined slider demolding mechanism must be used.

That is, the parts with molded side holes or side concave are made into active cores. When the plastic part is de-molded, the active core is first pulled out, and then the plastic part is ejected from the mold.

The secondary ejector mechanism is a mechanism required in a special demolding process. It is ejected twice or more times to complete the smooth demolding of the product.

The secondary ejection mechanism is suitable for some special mold designs and product shapes to ensure that the product can be completely removed from the mold.

The ejection mechanism series:

Accelerated Ejectors AEP-10/20 AEB-10/20

Plate Accelerators EP20/25/37/50

Accelerates Ejector AE Ø3/4/5/6/8/10/12

Push-Back Units Z163 Pressure Sleeve

Push-Back Units Z164 Pressure Bush

Two-stage Ejectors Z169-16/22/30/40

Flange Z1691 Two-stage Ejectors

Two-stage ejectors Z1692

Two-stage Ejectors Z1697

Two-stage Ejector Z1695

Z141 Acceleration Rocker

SCZNP Slide Core Guide Parts (Fixed-Type)

SCZAP Slide Core Guide Parts (Adjusting-Type)

ERST Early Return Units For Ejector Plate

ER101 Early Ejector Return Assembly ER100

Two-Stage Ejector Top-Last TSTL Series

Two-Stage Ejector Bottom-Last TSBL Series

E1522 Ejector Accelerator for Mold Making

E1524 Ejector Set Accelerator for Mold Making

Oil-Free SCY Slide Units For Loose Core

Oil-Free SCZA Slide Units For Loose Core Adjusting-Type

Oil-Free SCZN Slide Units For Loose Core Fixing-Type

etc.

If you cannot find the needed one, please contact us for it.

 

DGMF Mold Clamps Co., Ltd supplies all kinds of ejection mechanisms, mold clamps, components, and machine tools for the industries.

Contact the DGMF Mold Clamps Co., Ltd sales team for ejection mechanism specifications, secondary demoulding mechanism pricing, and secondary ejection mechanism inventory.

Or other components, parts, elements, or tools you may want.