Plastic Insert Molding and Overmolding

For complex plastic parts or components that combine stampings with insert molding, you need a contract manufacturing partner with a proven track record of solving tough problems.

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Bring us complexity. We’ll deliver simplicity.

Combining polymers in a single part and molding onto metal parts aren’t always straightforward. Our teams are always willing to think outside the box to bring your designs into reality.

Material Selection

We always consider the melting points of different polymers to ensure that they are suitable for overmolding. If specified materials present problems during production, we can help guide you to choose alternatives that will have the necessary physical and mechanical properties for your application.

Streamline Your Supply Chain

We combine plastics, metals, and tooling expertise under one roof to make your job easier. You no longer have to worry about coordinating between separate stampers and molders or arranging your own tooling maintenance. When you work with LMC, we take care of it all.

Process Efficiency

Automated insert molding, when compared to secondary assembly, uses fewer parts, reduces the opportunity for error, and provides streamlined logistics for part tracking and shipping.

More than a plastics partner.

We lighten your workload and allow you to focus on what’s important in your business by taking full ownership of the parts we produce for you—including not only manufacturing them, but also coordinating heat treating and other secondary processing with our network of trusted suppliers.

Industries Served

Insert molding and overmolding bring many modern assemblies to life in some of the world’s most demanding and critical industries.

Poultry Feeder Systems

We worked with an agricultural equipment OEM and our chain supplier to overmold plastic discs onto the chain. This unique product helps provide even distribution of feed for all birds in an operation that uses a chain feeder system.

Horn Plate Assemblies

We used mistake proofing (poka yoke) principles to ensure these complex assemblies held tolerances in the finished product.

Electric Golf Cart Solenoid Housing

This complex part serves as a housing for solenoids on electric golf carts. The solenoid is a coil of conductive wire that converts electrical energy into mechanical work; in this application, it is a critical component that allows the golf cart to operate. The housing is a deep drawn part that is hit several times during the progressive die stamping process. After stamping, it is zinc plated by one of our metal finishing partners before being returned to LMC for overmolding of the plastic feet. The plastic serves as insulation for the solenoid.

Poultry Feeder Systems

Horn Plate Assemblies

Electric Golf Cart Solenoid Housing

Success Stories

Poultry Feeder Systems

We worked with an agricultural equipment OEM and our chain supplier to overmold plastic discs onto the chain. This unique product helps provide even distribution of feed for all birds in an operation that uses a chain feeder system.

Success Stories

Horn Plate Assemblies

We used mistake proofing (poka yoke) principles to ensure these complex assemblies held tolerances in the finished product.

Success Stories

Electric Golf Cart Solenoid Housing

This complex part serves as a housing for solenoids on electric golf carts. The solenoid is a coil of conductive wire that converts electrical energy into mechanical work; in this application, it is a critical component that allows the golf cart to operate. The housing is a deep drawn part that is hit several times during the progressive die stamping process. After stamping, it is zinc plated by one of our metal finishing partners before being returned to LMC for overmolding of the plastic feet. The plastic serves as insulation for the solenoid.

Certifications and Approvals

We also supply components for every major automotive company worldwide.

Re-engineer your insert molding and overmolding results today.

Turn your problematic parts program into a profitable one…or make your next new product line a success. Tell us about your project to get started with a quote today!

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