Plastic Injection Molding Companies in Denver

Midwest Molding, Inc. delivers precision plastic injection molding, tooling, insert molding, overmolding, assembly, and production support for demanding manufacturers seeking a capable U.S. partner. From complex automotive and electronics components to consumer products, our engineering-led approach helps align tooling, quality, cost, and delivery needs—for Denver project teams, served from our single plant in Bartlett, Illinois.

Electric injection molding machines producing precision plastic components in a modern manufacturing facility

Our Plastic Injection Molding Services

Integrated molding, tooling, assembly, and engineering support for complex plastic components and production programs.

Straight Injection Molding

Produce complex plastic components and assemblies with electric molding equipment, project engineering, mold flow analysis, quality controls, and support from tooling through production.

Prototype & Production Tool Build

Coordinate prototype and production tool builds, mold flow analysis, ES testing, and part reformulation through cradle-to-grave project management and dedicated engineering support.

Two-Shot Molding

Mold multiple materials or colors together in a single cycle for complex components, supported by tooling, engineering, project management, and production ramp-up assistance.

Insert & Composite Molding

Combine materials, inserts, or substrates into complex molded components with dedicated equipment, robots, quality systems, and engineering support for process optimization.

Pre-Mold & Overmolding

Inject plastic over existing parts, substrates, or inserts to create multi-component assemblies, using dedicated equipment and quality controls for consistent production.

Multi-Component Assembly

Combine molded parts with additional components into complete assemblies, with project engineering, error proofing, redesign optimization, and integrated manufacturing support.

Engineering-Led Manufacturing

Integrated Molding Support From Tooling Forward

Midwest Molding, Inc. helps manufacturers move complex plastic components from prototype tooling through production with connected molding, assembly, and engineering capabilities. The company supports automotive, transportation, electronics, consumer goods, and appliance applications through straight, insert, composite, two-shot, and overmolding services. For teams evaluating suppliers serving Denver, this integrated model can simplify coordination across tooling, quality, assembly, and production needs.

Manufacturing engineer reviewing molded plastic parts beside injection molding equipment
The Midwest Molding Difference

Why Choose Midwest Molding, Inc.?

A specialized manufacturing partner for complex molded components, tooling, and integrated assemblies.

Integrated Capabilities

Access molding, tooling, assembly, and welding capabilities through one manufacturing provider.

Experienced Management

An experienced management team supports long-term growth across demanding manufacturing industries.

Quality Systems

Quality and environmental management certifications support disciplined plastic injection molding production.

Complex Components

Engineering support provides molding-process guidance and mold flow analysis for complex components and integrated assemblies serving U.S. automotive manufacturers.

Meet The Midwest Molding Team

Experienced manufacturing professionals support complex molding and assembly programs.

Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer supporting demanding manufacturing applications across the United States. Its management team brings an average of more than 35 years of manufacturing industry experience, with capabilities spanning injection molding, assembly, and welding. The company supports complex plastic component designs, integrated assemblies, and prototype-to-production tooling through an engineering-led approach. While its facility is located in Bartlett, Illinois, the company serves Denver manufacturers and broader U.S. manufacturing needs from that single plant. The team’s capabilities include straight, insert, composite, two-shot, and overmolding, along with project management and quality-focused production support.

ExperienceManagement team averages more than 35 years
CapabilitiesMolding, assembly, and welding support
CustomerDelphi supplier excellence recognition

Frequently Asked Questions

What is injection molding?

Injection molding is a manufacturing process in which plastic material is injected into a mold to form a specified component. After the material takes the mold’s shape, the molded part is removed for further production or assembly. Midwest Molding supports straight injection, insert, composite, two-shot, and overmolding for complex components and assemblies.

What plastic injection molding services does Midwest Molding provide?

Can Midwest Molding support tooling from prototype through production?

What is two-shot molding used for?

What is insert and composite molding?

Does Midwest Molding offer overmolding?

What industries does Midwest Molding serve?

How can a Denver-area company begin a molding project with Midwest Molding?

Have More Molding Questions?

Talk with Midwest Molding about your component, tooling, or assembly requirements.

Certified & Recognized

Awards and Recognition

IATF 16949 certification for Midwest Molding

IATF 16949

Certification listed by Midwest Molding.

ISO 14001:2015 certification for Midwest Molding

ISO 14001:2015

Environmental management certification listed.

ISO 9001:2008 certification for Midwest Molding

ISO 9001:2008

Quality management certification listed.

ISO/TS 16949:2009 certification for Midwest Molding

ISO/TS 16949:2009

Certification listed by Midwest Molding.

Minority Business Enterprise certification for Midwest Molding

Minority Business Enterprise certification

Certification listed by Midwest Molding.

Discuss Your Plastic Molding Requirements

Share your component, tooling, assembly, or production needs and connect with Midwest Molding, Inc.

Contact Us Today

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