National Molding

6 Pros and Cons of Plastic Injection Molding

According to Wikipedia, injection molding is a production method used in manufacturing items by feeding raw materials into a solid mold. The method can be accomplished with an array of components like thermosetting or thermoplastic polymers, elastomers, metals, and glasses. The chosen component to manufacture an item would be fed into the machine, melted, mixed, and transferred into the mold cavity where it is then allowed to cool and harden.


The Types of Injection Molding

This manufacturing method has different types; liquid silicone rubber injection molding, reaction injection molding, plastic injection molding, thin-wall injection molding, metal injection molding, and die casting.

Although each type is almost similar with each other and equally beneficial, the plastic injection molding industry turned out to be very popular among manufacturers. But just like any type of manufacturing method, it has its own set of pros and cons.


The Pros of Plastic Injection Molding

Speedy production. This is a method which makes manufacturing of numerous items possible in a speedy fashion. During a normal process, one cycle can be completed in just half a minute. Just imagine how many quick release buckles can be made in just an hour!

Material and color flexibility. Due to the method’s extreme flexibility, manufacturers and clients can choose a specific shade of color or specific raw material to deliver an intended product. Along the manufacturing process, various enhancements can be made to the product before it reaches its final process.

Affordable method. The plastic injection molding machine can be run through programmed equipment with very less effort. This in turn gives no additional fee in the overall production process. This is one of the few reasons why plastic injection molding is gaining more popularity among belt buckle manufacturing companies all throughout the years.


The Cons of Plastic Injection Molding

Steep set-up fees. Depending on what a client wants and needs, the manufacturing process must first start in making a prototype for the mold using a strong metal, which may seem very costly at first. But considering its strength, the mold can be used for multiple times and may end up helping the client save a considerable amount of investment. However, if the client has limited funds, low cost molds can be used. Aluminum molds can keep the initial costs quite low.

Lengthy lead time. The time it takes to manufacture a mold might take a while. Usually, it takes around a month or more to have it made. This may become a dilemma for a client who wants things to be done as soon as possible.

Laborious modification. In the event that a client wants to make some modifications to the mold, it may pose as quite a challenge because as mentioned earlier, it takes some time to make a mold. Manufacturing large items are quite easy to make, but if a client wants to make the injection molding cavity smaller or more complicated, it would be very effortful, sometimes impossible, on the part of the manufacturing company.

As you can see, the pros and cons are quite a handful but overall, the benefits outweigh the disadvantages. This is why numerous plastic injection molding companies prefer this type of method over the other types of injection molding.

When searching for the plastic injection moulding company to work with, make sure to verify its history, client reviews, affordability, and product quality. And if you have any questions about it, contact us today and we’d be very happy to help you!

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