Straight Injection Molding
Produce complex plastic components and assemblies with dedicated manufacturing cells, mold flow analysis, project engineering, quality assurance, and production support for demanding applications.
Midwest Molding, Inc. supports St Louis manufacturers with precision injection molding, tooling, overmolding, insert molding, two-shot molding, and integrated assembly. From prototype and production tools through manufacturing, experienced project engineers help manage complex components, identify part re-formulation savings, and support demanding automotive, electronics, transportation, appliance, and consumer goods applications with reliable quality and delivery performance.

Integrated molding, tooling, assembly, and engineering support for complex plastic components and production programs.
Produce complex plastic components and assemblies with dedicated manufacturing cells, mold flow analysis, project engineering, quality assurance, and production support for demanding applications.
Manage prototype and production tool build, with mold flow analysis, engineering support, ES testing, and part re-formulation for cost-saving opportunities.
Combine plastic with inserts or other materials to create complex components for automotive, electronics, and consumer goods applications, supported by process optimization and dedicated tooling.
Mold plastic over existing parts, substrates, or inserts to create multi-component assemblies with precision, consistency, and dedicated quality control throughout production.
Mold multiple materials or colors together in a single cycle to create complex components, supported by cradle-to-grave project management from tooling through production ramp-up.
Produce continuous-strip injection-molded components for automotive, electronics, and appliance applications with integrated quality control that segregates defects during production.
Midwest Molding, Inc. helps manufacturers move complex molded components from program launch through production with coordinated tooling, engineering, molding, and assembly support. Its capabilities include straight injection, insert and composite molding, overmolding, two-shot molding, and reel-to-reel strip molding. For St Louis manufacturers evaluating a domestic production partner, the company combines project management, process optimization, and quality systems across one manufacturing provider.

A specialized manufacturing partner for complex molded components and integrated assemblies.
Access molding, assembly, and welding capabilities from one manufacturing provider for complex production programs.
An experienced management team brings an average of more than 35 years of manufacturing industry experience to customer programs.
Quality and environmental management certifications support consistent injection molding production and responsible operations.
Midwest Molding’s track record includes a Delphi Pinnacle Award in 2005.
Experienced professionals supporting complex molding and assembly programs.
Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer supporting demanding manufacturing and automotive applications. Its experienced management team supports long-term growth across molding, assembly, and welding, with project engineering focused on complex components and integrated assemblies. The company serves manufacturers evaluating domestic production support for tooling, molding, and finished assemblies, including programs relevant to St Louis manufacturers. Its capabilities span prototype and production tooling, straight injection molding, insert and composite molding, overmolding, two-shot molding, reel-to-reel strip molding, and multi-component assembly. The team’s approach connects engineering, manufacturing, quality, delivery, and cost considerations throughout the life of a program.
Midwest Molding provides straight injection molding, insert and composite molding, pre-mold and overmolding, two-shot molding, and reel-to-reel continuous strip molding. The company also offers prototype and production tool build management, wire harness assembly, and multi-component assembly. Capabilities are supported by project engineering, tooling coordination, process optimization, and quality systems for complex components and integrated assemblies.
Talk with Midwest Molding about your component, tooling, and production requirements.
Quality management certification listed by Midwest Molding.
Environmental management certification listed by Midwest Molding.
Environmental management certification listed by Midwest Molding.
Quality management certification listed by Midwest Molding.
Automotive quality certification listed by Midwest Molding.
Share your component, tooling, or assembly requirements and connect with Midwest Molding’s project engineering team.
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.