Wire Harness Assembly
Wire harness assembly supports finished electrical assemblies for automotive, transportation, electronics, and consumer goods applications, with project engineering and quality systems supporting production requirements.
Midwest Molding, Inc. helps OEMs turn complex electrical and mechanical designs into dependable molded components and finished assemblies. From wire harness assembly and multi-component integration to insert, overmolding, and tooling support, our engineering-led approach connects production capabilities under one provider. Serving demanding automotive, electronics, appliance, HVAC, and consumer product applications across the US.

Integrated molding, tooling, wiring, and assembly capabilities support complex OEM components from prototype through production.
Wire harness assembly supports finished electrical assemblies for automotive, transportation, electronics, and consumer goods applications, with project engineering and quality systems supporting production requirements.
Multi-component assembly combines injection molded parts with additional components to create complete assemblies. Error proofing, redesign optimization, and project engineering help maintain function while reducing avoidable cost.
Insert and composite molding combines materials through injection molding to create complex components for automotive, electronics, and consumer goods applications, supported by dedicated equipment and engineering.
Pre-mold and overmolding injects plastic over existing parts, substrates, or inserts to create multi-component assemblies with precision and consistency across demanding production programs.
Two shot molding produces complex components with multiple materials or colors molded together in a single cycle, supported by tooling, engineering, and production ramp-up assistance.
Tooling design and build provides cradle-to-grave project management for prototype and production tools, including mold flow analysis, ES testing, and part reformulation opportunities.
Midwest Molding, Inc. connects tooling, injection molding, wiring, and assembly capabilities to simplify complex OEM programs. The team supports designs involving inserts, substrates, multiple materials, molded parts, and wire harnesses, while project engineers help guide work from tooling through production. A fully electric manufacturing facility and quality systems support consistent production for demanding automotive, electronics, appliance, HVAC, and consumer product applications.

One experienced manufacturing partner can help connect complex molding and assembly requirements.
Access molding, assembly, welding, and tooling support through one manufacturing provider.
Project engineers support complex designs, tooling, process optimization, and production ramp-up.
IATF and ISO certifications support quality and environmental management for production programs.
Management brings more than 35 years of manufacturing industry experience to OEM programs.
Experienced professionals support complex OEM molding and assembly programs.
Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer supporting demanding manufacturing and automotive applications. The company’s experienced management team supports long-term growth across the industries it serves, with capabilities spanning injection molding, assembly, and welding. OEM customers can access tooling, molding, wire harness, and multi-component assembly capabilities through one provider. The company’s manufacturing work includes support for automotive, electronics, appliance, HVAC, transportation, and consumer product programs across the US. Its approach is built around engineering support, quality, delivery, service, and competitive cost performance for complex molded components and integrated assemblies.
An electro-mechanical assembly combines electrical and mechanical elements into a functional finished product or subassembly. Examples may include molded components, wire harnesses, inserts, terminals, substrates, and other integrated parts. Midwest Molding, Inc. supports this type of work through wire harness assembly, multi-component assembly, insert molding, overmolding, two shot molding, tooling, and related project engineering.
Talk with Midwest Molding about your components, tooling, and assembly requirements.
Quality certification identified in company credentials.
Environmental management certification identified in company credentials.
Quality management certification identified in company credentials.
Quality management certification identified in company credentials.
Minority Business Enterprise certification listed in company credentials.
Share your OEM requirements and connect with Midwest Molding about tooling, molding, wiring, and assembly support.
For immediate assistance, feel free to give us a direct call at 224.208.1110.
For immediate assistance, feel free to give us a direct call at 224.208.1110.