Estimating Plastic Injection Mold Costs: Important Factors
If you intend to calculate the cost of plastic injection molding, it helps to recognize the fact that the price stated on the quote is not the only important consideration. It’s essential to include the buying price as well as lasting expenses that will be incurred once you’ve started using the tool and keep occurring over the mold’s entire life. Numerous variables account for the two aspects of your tool’s overall costs.
Here are factors affecting the purchasing costs of an injection mold:
Component Size and Design
Large molds are needed to create larger parts, leading to greater material costs. In the same vein, an elaborate part design calls for an elaborate tool design, which basically keeps the costs higher. On the contrary, mold design requires less sophistication when the output is also less sophisticated in design, helping lower tool costs.
Plastic Material Used
You may need to buy a more costly mold for use with certain types of plastics. For instance, higher tool costs are expected with material that’s unstable, corrosive, or has mineral, glass, carbon fiber, or other corrosive materials. This is also the case with plastics needing high tool temperatures. Such factors could also affect long-term maintenance costs of the tool.
Component Tolerance Strategy
When tight tolerance is needed for parts being output, extra machining steps will be needed. The costs of maintenance on top of manufacture will consequently increase.
If you’re buying your mold for high-volume projects (in terms of hours as opposed to number of parts), the tool has to be of high quality to offer reliable service, which certainly will increase its cost. Likewise, expect higher costs of manufacture for a tool with a higher number of cavities.
Cycle Time Needs
Even cooling is necessary over the entire cavity impression, or in each cavity for multi-cavity equipment if you’re going for swift machine cycles. To achieve that, a proper design for tooling and greater precision build are required, both of which add to tool construction costs, and in some cases, maintenance costs.
The cost and quality you can get in your plastic injection mold depends on where it’s manufactured. An example is cost of injection molding in China, which may be lower than other places. Nonetheless, take quality into account as you assess the cost of local vs. outsourced plastic injection molding. To steer clear of the issues associated with some lower-cost molds, you should strike a fair balance when it comes to careful consideration cost, quality, and your particular requirements prior to making the ultimate choice.