Custom Insert Molding Services

Custom insert molding injects plastic around a pre-existing insert, substrate, or component so the finished part combines multiple elements in an integrated form. The insert may support the component’s structure, electrical function, or assembly requirements. Midwest Molding provides insert and composite molding for complex parts used in automotive, electronics, consumer goods, and appliance applications.

Insert molding can be designed around pre-existing parts, substrates, and other components that need to be incorporated into a molded plastic assembly. The appropriate insert depends on the part design, material compatibility, process requirements, and intended application. Midwest Molding’s project engineers can support tooling, process development, and guidance on molding processes and parameters for complex molded components.

Midwest Molding supports automotive, transportation, electronics, consumer goods, and appliance manufacturing applications. Its insert molding, overmolding, two shot molding, tooling, and assembly services are suited to companies developing complex molded components and assemblies, including insert-molded and overmolded components.

Yes. Midwest Molding provides cradle-to-grave project management for prototype and production tool builds. Tooling support includes mold flow analysis, engineering assistance, and part re-formulation opportunities for cost savings. The team can support projects from tool build through production, including complex molded components requiring dedicated process and manufacturing engineering.

Insert molding places a pre-existing insert or component into a mold before plastic is injected around it. Overmolding injects plastic over an existing part, substrate, or insert to create a multi-component assembly. The terms can overlap in some applications, but the best process depends on the part design, materials, functional requirements, tooling, and production objectives.

Yes. Midwest Molding offers two shot molding, a process that enables multiple materials or colors to be molded together in a single cycle. The service is supported by tool build management, project engineering, and production ramp-up assistance. This approach can help create complex components with integrated features while reducing the need for separate molding operations.

Custom insert and composite molding services are available at Midwest Molding’s facility at 1560 Hecht Drive, Bartlett, IL 60103. The facility includes fully electric injection molding equipment, dedicated supporting equipment, robots, and end-of-arm tooling. Companies can contact Midwest Molding at 224.208.1110 or through mwmolding.com for project discussions and production information.

To begin a project review, provide available part designs, insert or substrate details, application requirements, expected production information, and tooling considerations. Midwest Molding’s project and manufacturing engineers can evaluate the molding approach, tooling needs, and opportunities for process or part optimization. Contact the company at 224.208.1110 or submit an inquiry through mwmolding.com.