Types Of Injection Mould

There are many types of Injection Mould, Such as Two-Plate Mould or Three-Plate Mould.
Moulds are Designed as Two-Plate Mould or Three-Plate Mould, depending on the type of component to be manufactured.



Types Of Injection Mould
Types Of Injection Mould




Two-Plate Mould :

  • Two plate Mould is the easiest injection Mould structure and has many advantages. It's consist with A side and B side 2 main parts, when it is load in ejection machine to do Moulding, A side is fixed and held still, B side is movable.

  • Two-Plate Mould has only one parting line. If a runner is used, it is connected to the moulded product and requires manual removal and separation after the part is ejected. This type of injection Mould is the least expensive to make and is commonly used for parts with relatively simple geometries.



Three-Plate Mould :



  • Three-Plate Mould has two parting lines, one for the runner system and one for the moulded product. When the Injection Mould opens, the runner is automatically separated from the product to allow separate handling. This eliminates the need for manual separation and removal and the sprue and runner system may be fed directly to a recycling system. This type of mould is more expensive than the two-plate Mould. 


  • Three plate Moud is also named as small gate Mould, comparing with Two Plate Mould, one of the differences is additional Mould plate is required between top clamp plate and cavity plate, which called runner plate, it allows the runner scrap and Plastic Moulded parts released separately.


  • Three plate mould is usually employed when the part is too big and need multiple injection points. Three plate mould design has more advantages to locate the gate.

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