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What is Multi Cavity Mold?
A multi-cavity mold is an injection mold that has more than one cavity of the same part, and the mold is designed to produce multiples of the same part during each production run.
Multi-cavity injection molds are often used for higher volume products since it allow you to make more efficient use of the cycle time and produce more parts from the same mold within the shot guarantee.
What Benefits of Multi-Cavity Injection Molds?
A multi-cavity mold contains multiple cavities in the same part. It can produce a large number of parts in each injection molding cycle, which is very suitable for mass production. Some other obvious benefits include:
Shorter delivery time: Since multiple parts can be completed in each cycle, quotas can be reached faster..
Reduce mold costs: Compared to creating four separate molds, molds with four cavities are cheaper and have a lower cost of ownership.
Lower parts price: The total labor and machine time of multi-cavity molds are shorter, which reduces the price of parts.
Order scalability: It is difficult to meet the demand for one million parts with a single cavity mold. Multi-cavity molds allow you to place large orders in time.
A Single Mold VS. Multi-Cavity Mold , which is best for your project?
A single cavity mould will produce a single cycle, whereas a multi-cavity mould produces more than one product per cycle.
In general, choosing a single or multi cavity mould depends on your timeframe and demand. When large volume identical parts are needed within a set time frame, a multi-cavity mold is often the better choice. Multi-cavity mold molds enable to create more
parts, faster within the shot guarantee.
However, multi-cavity molds are not the best option for all the projects. A multi-cavity mold requires a far more substantial upfront investment than a single-cavity mold. It is more cost-intensive to create multi-cavity molds because they require more
material, labor, and energy resources than a single-cavity mold.
If producing parts at high volumes, the investment in a multi-cavity injection mold can certainly pay off.
But at lower volumes, it may make more sense to adopt for a single-cavity mold.
Multi-Cavity Molds VS. Family Molds:
Which is the best for your needs? Multi-cavity injection molds are sometimes confused with family injection molds, but the two are quite different.
While a family injection mold also includes multiple cavities, those cavities are not the same, they are used to create different components of a product in a single run.
Although a family mold also contain multiple cavities, the parts generated share a similar size but different designs. For example, if your part requires two different parts of almost equal size, you can use this tool to produce them at the same time. It
has the same advantages of a multi-cavity mold, but has some other advantages:
• lower total tooling budgets
• Productivity increase since two or more components produced in one injection cycle
• Low-volume order potential: family injection molds are cost-effective for low-volume orders, as don’t need to run different molds
• Ideal for prototyping ,since a product can be fully assembled using only one family mold prototype, it can cut down on pre-production costs.
However ,because of the different shapes of the cavities in a family mold, it can be much harder to maintain consistency during part production, thereby increasing your risk of molding defects.
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