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How to save injection molding technology cost?

340 Published by admin Sep 11,2019

Injection Molding technology is a process where some liquid or a pliable material (such as thermoplastic polymers, ceramic, plastic or glass) is filled in a hollowed-out block to cool and harden, configuring the cavity shape. Rapid injection molding is an ideal method for manufacturing high volumes of plastic parts in automotive, home application, concept ideas, and engineering build-up among other plastic products available in today’s market.

It’s always recommendable to use high-pressure injection to simplify the process. The process is typical in manufacturing. However, the special and unique process makes it cost a lot in actual manufacturing. Would you like to save the Injection Molding technology cost?

Injection Molding technology

Factors that Influence Injection Molding technology Cost

Any qualified manufacturer cannot jump into concluding the cost of injection molding. The question is as broad as asking a mason about the cost of building a house. Some of the factors that affect the injection molding cost are:


Tooling material,Size of the parts,Number of cavities needed,Nature of the mold base,Cavity customization,Design.


In addition to that, an experienced manufacturer may help minimize your budget by simplifying the client’s design.  In some instances, a small, detailed mold can cost more than a large-sized yet simple mold. Also, tight tolerances are a significant focus during mold production although it demands additional steps which increase the tooling costs.

Injection Molding technology


Solution Tips about Saving Injection Molding technology Cost

Saving on production cost is paramount when it comes to manufacturing since it minimizes the final cost of the product. The simplest trick to reduce the price per piece is by increasing the parts quantity since the upfront costs while machining and designing the mold can be used over more parts.  In addition to that, you can try other materials as you observe their effect on the project and production cost. Below are some injections molding designs you can experiment to minimize the manufacturing cost.


  1. Eliminate or reduce the undercuts

Generally, the undercut features complicate and in some instances prevent parts injection. Eliminate them if possible. If you find it hard to get rid of them, try sliding shutoffs, pass-through cores or change the parting line and draft angles to simplify the mold build. If the technique is applied appropriately, it reduces the tooling costs.


  1. Experiment the core cavity approach

The approach provides smooth finishing, improved ejection, adequate venting, and also eliminates steep draft angles. For instance, while making an electronic housing it’s recommendable to sink the wall cavities into the mold base since it requires some thin tools to shape the ribs into a mold. This method simplifies the process hence saving some dollars.

Injection Molding technology

  1. Minimize the cosmetic finishing and appearances

Decorations added on injection molding makes the product attractive though they demand high mold polish, EDM, or bead blasting which increases the tooling costs. You can also polish the necessary areas rather than focusing on the entire mold. Finally, to save on the manufacturing costs, avoid decorations unless requested by the client.


  1. Learn to modify and recycle molds

Some molded injection parts pass through several iterations to get an appealing design. However, instead of buying a new mold for every revision, you can comfortably re-use the initial one by starting with the smallest, basic part design, then mold several pieces, re-machine them to add additional features, taller version, and re-mold.  The technique can save dollars on tooling development if used appropriately.


  1. Try to design self-mating parts

If you are undertaking a project with two interlocking segments, or a snap-together case, it’s recommendable to redesign the snaps to interlock instead of repeating the process for every snap.


  1. Use family or multi-family molds

If you want to produce molds in bulk, you can achieve this using an aluminum tooling with up to eight cavity molds depending on the part or size which may minimize piece-per part costs.

Injection molding technology

  1. Apply over molding

Other techniques to try include, over molding, managing the part sizes, apply the on-demand production and focus on FDM analysis.

Kaierwo is a custom Injection Molding technology service factory in China, Established in 2002, Own r&d team, You can get products 30% cheaper than US/EU,Contact us Now




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