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A Guide to Custom Injection Mold Design

The term custom injection molding is new to you, so let's review its definition. This process is used to make plastic parts that meet the needs of specific applications. In other words, it allows components to be customized in accordance with customer requirements. Let's learn more about it.


Custom plastic parts


As the process of injection molding proceeds, plastic pellets are melted at high temperatures and pushed into mold cavities. In the next stage, the part is removed from the mold and set aside.


A clamping mechanism opens or closes the mold's cavity. Additionally, there is an injection unit that uses heat to melt the material and push it into the mold. A hydraulic machine is typically used to create high pressure for injection molding.


Often, the tooling costs are quite high but the overall cost is quite reasonable for plastic injection molding. Since the tooling must be strong enough to withstand high pressure, high strength metals like aluminum or steel are used.


Machine parts


Basically, this process has three primary components. The first component is an injection apparatus. This one uses heat to liquefy the plastic pellets and push them into a mold. The mold is custom designed based on the product it's designed for, and the clamping unit controls pressure.


Injection parts inside the mold are responsible for liquefying plastic pellets and injecting them into the cavities inside. The mold has a base and a number of cavities used to hold resin during the process.


Usually water is used to cool the resin after it has been injected into the injection mold design. This completes the process and the part will come out solid.


Possible complications


First of all, if the mold is designed carefully, it does not cause any complications during the molding process. If the temperature crosses the maximum limits, it may burn or scorch the parts.


When the mold surface temperature changes, warping can occur. In addition to changing temperatures, moisture particles in the liquid plastic can also cause it to break down and emit hot gas. If the cavity is not filled properly, the same problem can occur as well.


You must pick a niche market before starting your own custom molding startup. You can get much better at what you do with experience. Once you acquire an expertise, stick to it. This will help you make a lot of money in the future. Today, most molders have their own niches.



With many years of development, Win Win Mold has grown into an enterprise that provides a full spectrum of "turn key" services to its customers, from product design to prototypes, mold design to mold production. As well as designing and manufacturing plastic injection molds, we are also specialized in that field.


We make products and components for all kinds of clients, from blue chip companies to small independent businesses. With our expertise and experience in several industries, multinational corporations trust us. A smaller company often works with us because we provide support and care to each project. In every partnership, we bring integrity and commitment.


Please visit https://www.winwinmold.com for more information if you are looking for a plastic injection mold design service.