Custom Plastic Injection Molding Services

Midwest Molding, Inc. delivers custom plastic injection molding for complex components, assemblies, and demanding production programs. From tool build through production, experienced project engineers support automotive, electronics, transportation, appliance, and consumer goods applications. Advanced fully electric equipment, integrated quality systems, and multiple molding processes help manufacturers pursue consistent parts, efficient production, and cost-conscious solutions across the United States.

Engineers reviewing custom plastic injection molding production equipment in a modern manufacturing facility

Our Custom Plastic Injection Molding Services

Comprehensive tooling, molding, overmolding, insert molding, and continuous production solutions for complex manufactured components.

Prototype & Production Tool Build

Cradle-to-grave tooling support covers prototype and production tool build management, mold flow analysis, ES testing, and part re-formulation opportunities for complex molded components.

Straight Injection Molding

Straight injection molding supports complex components and assemblies across automotive, transportation, electronics, and consumer goods, with project engineering, dedicated cells, and quality assurance.

Two Shot Molding

Two shot molding creates complex parts with multiple materials or colors molded together in a single cycle, supported by engineering oversight from tooling through production ramp-up.

Pre-Mold & Overmolding

Pre-mold and overmolding injects plastic over existing parts, substrates, or inserts to create multi-component assemblies with dedicated equipment and quality control systems.

Insert & Composite Molding

Insert and composite molding combines materials through injection molding for complex automotive, electronics, and consumer goods components, supported by tooling and process optimization.

Continuous Strip Molding

Reel to reel continuous strip molding produces injection-molded components in continuous strips, with integrated quality controls designed to segregate defects.

Engineering-Led Solutions

Integrated Molding From Tooling To Production

Midwest Molding, Inc. supports custom plastic injection molding programs from initial tooling through production. Its project engineers help evaluate mold flow, identify part re-formulation opportunities, develop dedicated manufacturing cells, and coordinate production ramp-up. Fully electric molding equipment and integrated quality systems support complex components for automotive, transportation, electronics, appliance, and consumer goods manufacturers seeking an integrated manufacturing partner.

Project engineers examining molded plastic parts and tooling during a production review
The Midwest Molding Difference

Why Choose Midwest Molding, Inc.?

A specialized manufacturing partner for complex molding, tooling, assembly, and quality-focused production programs.

Integrated Capabilities

Access molding, assembly, and welding capabilities through one manufacturing provider for coordinated production support.

Experienced Management

An experienced management team brings an average of more than 35 years of manufacturing industry experience.

Quality Systems

IATF and ISO certifications support quality and environmental management across injection molding production.

Recognized Performance

Midwest Molding received a Delphi Pinnacle Award in 2005.

Meet The Midwest Molding Team

Experienced manufacturing professionals support complex programs from tooling through production.

Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer serving demanding manufacturing and automotive applications. Its management team supports long-term growth across injection molding, assembly, and welding, with an average of more than 35 years of manufacturing industry experience. The company’s capabilities are designed to support complex component designs, integrated assemblies, and prototype-to-production tooling programs. Its Bartlett, Illinois manufacturing operation provides a modern base for fully electric molding, engineering support, quality assurance, and production services. Founded in 1996, the company was originally certified to ISO 14001 in 2009 and today holds IATF 16949:2016 and ISO 14001:2015 certification for the manufacture of injection molded and insert molded products.

ExperienceMore than 35 years average management experience
RecognitionDelphi Pinnacle Award received in 2005
CapabilitiesMolding, assembly, and welding from one provider

Frequently Asked Questions

How much does a custom injection mold cost?

Custom injection mold cost varies according to the part design, tooling requirements, materials or inserts, production objectives, and engineering complexity. Midwest Molding can support prototype and production tool build management, mold flow analysis, ES testing, and part re-formulation reviews. A project discussion allows the team to evaluate the application and identify potential cost-saving opportunities before tooling proceeds.

What custom plastic injection molding services does Midwest Molding provide?

Can Midwest Molding support prototype and production tooling?

What is two shot molding used for?

What is the difference between overmolding and insert molding?

What industries does Midwest Molding serve?

Does Midwest Molding provide assembly with injection molding?

How can I contact Midwest Molding about a molding project?

Have Questions About Your Molding Program?

Talk with Midwest Molding about tooling, engineering, and production requirements.

Certified & Recognized

Awards and Recognition

IATF 16949 certification for Midwest Molding

IATF 16949

Quality management certification listed by Midwest Molding.

ISO 14001:2015 certification for Midwest Molding

ISO 14001:2015

Environmental management certification listed by Midwest Molding.

ISO 14001:2004 certification for Midwest Molding

ISO 14001:2004

Environmental management certification listed by Midwest Molding.

ISO 9001:2008 certification for Midwest Molding

ISO 9001:2008

Quality management certification listed by Midwest Molding.

ISO/TS 16949:2009 certification for Midwest Molding

ISO/TS 16949:2009

Certification listed by Midwest Molding.

Discuss Your Custom Molding Requirements

Share your component, tooling, or production needs and connect with Midwest Molding’s project engineering team.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 224.208.1110.