Plastic injection molding is a cost-effective and efficient way to produce high-quality parts. Injection molding creates very little waste which means lower costs. That being said, there are still multiple tricks you can learn to further save money with injection molding without jeopardizing the quality of the final product.

It is important to consider how long a mold will last. The longevity of a mold can depend on several factors, including:

  •  the material it is constructed from
  • the type of product being molded
  • the expected stress being put on a mold.

What material is appropriate depends on numerous factors, and analyzing these factors to determine which type is the best fit depends on things such as how long the mold is expected to be used for and the type of material being processed through it.

1. Choose a material that will meet your project’s performance criteria.

Proper material selection is crucial. Consider what is appropriate in terms of functionality, strength, and cost. When juggling prices, it is important to weigh the correlation between material expenses and product longevity. Look forward, if you want to use the product or part long-term, with little to no maintenance, investing in a more expensive material might be beneficial. However, if focused on saving financially throughout the molding/manufacturing process, consider less expensive materials.

2. Choose designs that minimize material usage.

The smallest reductions in material usage, when multiplied by the total products in a production run, can result in both resource and monetary savings. Strengthening features such as ribs and gussets use less material than thick walls. While coring out solid components saves money on material, and prevents imperfections such as warping and sinking, it is important to balance design and cost.

3. Minimize secondary processes.

Additions to products, such as inserts or painting, are sometimes necessary. However, before altering a product in a way that requires a significant financial investment analyze whether changes in design or materials can accomplish the same goals. Changes in design or materials may also have the added benefit of using less material overall. Creating a feature inside a mold, rather than after a piece has been molded, saves both time and money.

4. Choose the right shop to handle a project.

Some molders have specific areas of expertise such as micro-molding or specializing in short production runs. Choosing a molder whose expertise is aligned with your project’s goals ensures that you’re getting the most value out of your dollar. New Berlin Plastics is an expert injection shop and can take on a wide variety of projects.

Implementing saving methods throughout the molding/manufacturing process does not mean a company’s product will be low quality. When choosing materials, designing, and molding a part it’s possible for product value to far exceed the part cost.

Instituting the techniques listed above can optimize both production and profit margin on your original investment while increasing production output. After strategizing and planning you’ll find a significant amount of money can be saved when producing plastic parts without cutting any corners. Optimizing cost-efficiency is a technique used in industries. Its implementation in the injection molding process can ensure significantly more productivity and profit, and most importantly not harm the quality of your product.