5 Things to Consider Before Getting Injection Molding Parts Quote in China

5 things to consider before getting injection molding parts quote in China

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When planning for a successful injection molding project in China, it’s vital to consider several critical factors that affect cost, production, and overall product quality.

1. A CAD Drawing or Physical Sample

To kickstart your project effectively, supplying a precise CAD drawing is critical. These drawings allow the molders to provide a detailed and accurate quote. While 2D drawings can offer some information, a 3D CAD model, particularly in the STEP format, is the most universally accepted across design platforms. If a drawing isn't available, you can send a physical sample to the injection mold maker. They can then analyze the part's structure, dimensions, and weight to generate a quote.

2. Understanding Plastic Material

Choosing the right plastic material is crucial, as costs vary significantly between types. For example, corrosion-resistant materials like PVC require higher-grade mold steels such as S136H. If you’re unsure about the suitable resin for your parts, inform the molder about the needed function, strength, transparency, or other specific requirements. The molder can then suggest appropriate materials.

3. Surface Finish Considerations

The required surface finish impacts both the steel's grade for the mold and the unit pricing of parts. High-gloss finishes necessitate higher-grade steel and result in higher costs due to increased scrap rates. On the other hand, textures (like MT or YS) also add to the mold cost.

4. Preferred Part Color

Although color usually doesn’t affect cost, it’s essential to specify your color preferences beforehand. This allows the molder to evaluate whether parts can be combined into a single family mold, potentially reducing costs.

5. Estimated Demand Quantity

The anticipated production volume influences the choice of mold type. Lower quantities may suffice with a pre-hardened mold featuring fewer cavities, whereas higher quantities require distinct mold solutions for efficiency.

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There are more than 15 different processes utilized for molding and transforming plastic into various end products. Injection molding is a prevalent technique used for this purpose. It's a process that forms objects from thermoplastic materials. For any custom injection molding project, the injection mold and molding costs are critical factors for the development team to consider. For an accurate quote from the supplier, you should provide the following details for review:

Contact us to discuss your requirements of custom made plastic part quotes. Our experienced sales team can help you identify the options that best suit your needs.

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