Custom Plastic Injection Mold Maker

Plastic injection mold making involves the creation of molds used to manufacture precise plastic parts essential for industries such as medical devices, automotive, consumer electronics, and packaging. These sectors rely on the process for its ability to produce complex shapes with high accuracy and repeatability, ensuring that parts meet strict quality standards.
Raidy Mold brings a competitive edge to plastic injection mold making through our expertise and state-of-the-art equipment. Our thorough understanding of mold design, coupled with stringent quality control measures, ensures mold production that leads to flawless parts. Clients benefit from our ability to deliver molds that meet and exceed expectations, enhancing product quality and manufacturing efficiency.

30 Years of Experience

500 Sets Per Year

Select P20, H13, S7

Our Plastic Injection Molds

Groundbreaking Mold Design

At Raidy Mold, we create innovative solutions. The high-end mold design service aims to break boundaries so you have an advantage over your competitors. We use state-of-the-art CAD/CAM technology while our experienced engineers and designers work closely with you when developing molds.
The collaborative approach ensures that every mold is optimized for performance, cost efficiency, reducing cycle times, and improving the quality of the finished product. For businesses looking to solidify their market position, Raidy Mold offers a design service that translates into tangible benefits: higher productivity, lower costs, and products that stand out for their quality.
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State-of-the-Art Mold Making

Raidy Mold elevates plastic mold making to exceptional levels, thanks to our cutting-edge facility and a roster of highly skilled technicians. We're armed with sophisticated EDM, CNC machines, and deep drilling equipment, enabling our experts to fabricate molds tailored to the intricate needs of manufacturers. This advanced machinery plays a pivotal role in our ability to manage projects of varying complexities, assuring molds of unmatched precision and durability.
Leveraging our sophisticated tools and the expertise of our team, we craft molds that significantly boost plastic parts and product manufacturing efficiency. Each mold is an exemplar of engineering prowess, meticulously designed to streamline production processes. Partnering with Raidy Mold means gaining access to solutions that not only elevate product quality but also lower production costs, ensuring our clients stay ahead in competitive markets.

Application

From automobile parts to electronics, our plastic injection molding realizes complex parts to serve a wide array of applications.

FAQ

Mold Base: The mold base serves as the foundation of the plastic injection mold, providing structural support and housing for all other components. It is typically made of steel or aluminum and is machined to precise tolerances to ensure proper alignment of the mold halves.

Cavity: The cavity is the part of the mold that defines the outer shape of the plastic part being produced. It is precisely machined to reflect the desired geometry of the final product, including surface details and texture.

Core: The core complements the cavity by forming the internal features and cavities of the plastic part. It fits snugly into the cavity and shapes the interior surfaces of the molded product.

Inserts: Inserts are additional components placed in the mold to create specific features or details in the molded part. They can be made of a variety of materials and are often removable or replaceable, allowing flexibility in part design.

Nozzle & Sprue Bushing: The nozzle is the point at which molten plastic is injected from the injection molding machine into the mold cavity. It connects to the sprue bushing, which directs the flow of plastic into the mold’s runner system.

The runner system: The runner system consists of channels that direct the flow of molten plastic from the sprue to the cavity. It includes gates, which control the flow of plastic into the cavity, and runners, which distribute the plastic throughout the mold.

Ejector pins: Ejector pins are essential for ejecting the solidified plastic part from the mold once it has cooled and solidified. They are typically located in the core and eject the part from the cavity as the mold opens.

Cooling system: Cooling channels are incorporated into the mold to regulate the temperature of the mold and the molten plastic. Proper cooling is critical to achieving consistent part quality, reducing cycle times, and preventing warping or shrinkage of molded parts.

Venting System: The venting system ensures proper evacuation of air and gases from the mold cavity during the injection molding process. Effective venting helps prevent defects such as air traps and ensures that the cavity is completely filled with molten plastic.

Mold interlocks: Mold interlocks are mechanisms that ensure proper alignment and engagement of the mold halves during the molding process. They prevent misalignment or misalignment of mold components, which can lead to defective parts or mold damage.

Guide System: The guide system facilitates precise movement and alignment of the mold halves during mold opening and closing. It includes components such as guide pins and bushings that ensure smooth operation and accurate alignment of the mold halves.

  • Considerations of Plastic Injection Mold Design
Designing a plastic injection mold requires careful consideration of several factors to ensure quality and efficiency. Part design must ensure manufacturability, taking into account aspects such as wall thickness and draft angles to avoid defects. Material selection affects part properties and mold life.
Mold design must include appropriate gating and venting systems to control plastic flow and allow air to escape. Cooling system design is critical to manage cycle times and prevent warpage. Finally, ejection mechanisms must be planned to remove the part without damage, underscoring the complexity and precision required in mold design.
  • Plastic Injection Mold Material
Materials used in plastic injection molds must withstand repeated cycles under high pressure and temperature. Tool steels such as P20, H13, and S7 are commonly selected for their durability and resistance to wear and corrosion. Aluminum is preferred for prototype molds or low-volume production because of its excellent thermal conductivity and faster machining times.
Prehardened steels are used for molds that do not require heat treatment and offer a balance between wear resistance and machinability. The choice of material affects the performance and longevity of the mold and the quality of the finished product.
  • Plastic Injection Mold Troubleshooting
Troubleshooting plastic injection molding involves identifying and solving problems that can affect part quality. Common problems include short shots, where the mold doesn't fill completely, often due to inadequate material flow or air entrapment.
Warpage occurs when parts cool unevenly, highlighting the importance of a well-designed cooling system. Sink marks result from insufficient cooling time or material shrinkage, requiring adjustments to processing conditions. Flash, or excess material along part edges, requires precise mold closure or lower injection pressure. Addressing these issues in a timely manner ensures the production of high-quality parts and maintains operational efficiency.

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