Plastic Toy Mould Manufacturer, Supplier & Exporter in India

Basic Requirements for Structural Design of Plastic Toy Molds


The world of plastic toys is filled with creativity and imagination, bringing joy to children and collectors alike. Behind every successful plastic toy lies a well-designed mold that ensures its shape, functionality, and durability.The structural design of plastic toy molds plays a crucial role in manufacturing high-quality toys. In this article, we'll look at the fundamental conditions for producing high-quality plastic toy mould.

Material Choice

Making the proper material choice is crucial when creating plastic toy moulds. The substance should have qualities like strong heat resistance, high strength, and dimensional stability. Commonly used materials for toys molds include hardened steel, aluminum alloys, and pre-hardened steel. Each material has its own benefits and drawbacks, so it's important to take into account things like production volume, price, and the complexity of the toy design.

Mould Cavity Concept

The final shape and characteristics of the plastic toy are determined by the mould cavity. It is crucial to build a cavity that faithfully reproduces the desired toy design. Factors such as draft angles, parting lines, and ejection mechanisms should be carefully considered to ensure smooth ejection and minimize defects like warping or flash. The mold cavity should also allow for easy assembly and disassembly for maintenance and repair purposes.

System for Cooling

In the moulding of plastic toys, effective cooling is essential for achieving shorter cycle times and lower production costs. The mold's cooling system aids in regulating the plastic's temperature and solidification, ensuring correct filling and avoiding deformations. Properly designed cooling channels, strategically placed near critical areas, can facilitate uniform cooling and minimize cycle time.


In order to allow air and gases to escape from the mould during the injection moulding process, venting is a crucial component of mould design. Insufficient venting can lead to issues such as incomplete filling, burn marks, or even damage to the mold. Adequate venting ensures high-quality parts with minimal defects. Air entrapment can be avoided and smoother filling is encouraged by strategically placed vents, which are normally found at the end of the flow route.

Ejection System

The ejection system is responsible for removing the molded toy from the mold cavity.  Designing an ejection system that delivers consistent and regulated ejection is essential in order to avoid damaging the toy or the mould. Common ejection mechanisms include ejector pins, ejector sleeves, and stripper plates.  To ensure safe and effective demolding, the design should take into account elements including part shape, undercuts, and the needed ejection force.

Mold Surface Finish

The surface finish of the mold directly affects the appearance of the final toy.  A smooth and polished mold surface minimizes the risk of imperfections and enhances the toy's overall quality. To give the mould the appropriate surface quality and texture, surface coatings or treatments, such as chrome plating or texturing, might be used.  The selection of suitable surface finishes that complement the toy's design and manufacturing specifications should be given careful thought.


Designing toy mold requires careful attention to detail and consideration of various factors to ensure the production of high-quality toys.  Each component is crucial to the overall structural design, including material choice, mould cavity design, cooling systems, venting, ejection systems, and mould surface treatments. By adhering to these basic requirements, manufacturers can create molds that produce visually appealing, functionally sound, and durable plastic toys that bring joy and entertainment to children around the world.