It can take 3 to 4 weeks to make an injection mold, but it may take months for hard ones.
Plastic injection molds can be tricky. Some molds are very basic and some are extremely complicated. Sometimes, it is accessibility of the chosen material that holds up the process.
The time it takes to make an injection mold can vary significantly, depending on the design complexity and the specifics of the materials used. Understanding the mold fabrication is supportive for any business owner, utilizing injection molding firms to plan and execute production efficiently.
How long does it take to make a plastic injection mold?
Generally lead time could take 3 to 4 weeks for a single cavity prototype mold. This guess is suited for low production volume of approximately 450 to 1000 samples, a simple cooling circuit, and a couple of lowest ejector pins.
On the other hand, multiple cavity injection or more hard molds could take as long as between one to six months. More hard molds generally has higher production volume between 100,000 to 1,000,000 injection molded parts, multiple chilling channels, multiple action like lifters and slide cams, as well as complex ejection mechanism.
Other long lead time factors could due to kind of feed system such as multiple nozzle hot manifolds, a high surface finish, and tight-tolerance dimensional needs. Purchase of specialized components such as warm runner systems and imported accessories could also include more time to the existing timeline.
It is also remarkable to note that low volume production molds generally utilize metals that are softer, and have the capability to be cast, before being machined mechanically on CNC mills. For the case of a top volume production mold, then there is need to make use of steels that are extremely hard, and the usual technique of machining such type of steel is CNC machining and spark erosion; where electric sparks are used to make the steel inserts. The latter can be a rather costly and slower process.
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What are the plastic injection mold process factors?
Customer requirement and testing phase
It is remarkable to pay focus to the requirements and standards of the customers, prior to execution of the project.
Typically, a plastic injection mold take approximately 3 to 4 correction loops and one to two months of repairs and maturation before the wanted results can be achieved.
Factory’s workload
Another important factor that may be kept in mind is the workload for the manufacturing firm. If the manufacturing company’s complete capacity has been reached, then lead time could take longer.
In most cases, the lead time for the competition of an easy mold can take from 4 to 6 weeks, while a hard mold can be completed within 6 to 8 weeks. Additional, an aluminum mold could take between 2 to 3 weeks. Anyway, as forever, it is all dependent on the molds fabrication, the complexity, and many other factors. Basically, while some manufacturing firms may have different ways of making shortening the lead time, the differences in lead time are minimal.
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