Cary Products provides custom plastic manufacturing in Texas for manufacturers that need a dependable domestic production partner. As an ISO 9001:2015-certified custom plastic company founded in 1946, we design, tool, and produce injection molded and thermoformed parts at our facility in Hutchins, just outside Dallas. As a result, your program stays with one team from design review through production. Request a quote to start the conversation.
A Custom Plastic Manufacturer With 80 Years of Experience
Arthur Powell Cary Jr. founded Cary Products in 1946 as a small novelty manufacturer. Since then, three generations of management have built it into one of the most established precision plastic manufacturers in Texas.
Our recent investments continue that work. Specifically, we expanded to 30 injection molding machines, built new shipping offices and a dedicated heavy freight road, completed a full electrical renovation, and added a second production shift. Consequently, customers gain added capacity and a facility prepared for long production programs.
Services for Custom Plastic Manufacturing in Texas
Custom Injection Molding
Our injection molding floor runs 30 machines, with clamping force from 97 to 700 tons and shot sizes up to 104 ounces. Every machine is a 2018 to 2022 model. Because the fleet covers that range, we support everything from prototype runs of a few hundred parts to sustained production in the millions.
For example, we commonly process ABS, polypropylene, and nylon. For full specifications, see our custom injection molding services.
Thermoforming
Thermoforming suits large parts and lower-volume runs. Moreover, its tooling requires a smaller investment than injection mold tooling. For instance, typical applications include custom enclosures, HVAC ducting, automotive interior components, and agricultural equipment panels. Learn more about our thermoforming services in Texas.
Custom Tooling
Our in-house tool room handles mold design, repair, and preventive maintenance. Additionally, it includes CNC milling and lathes, 5-axis CNC routers, CNC EDM, surface grinders, and CAD/CAM software. Therefore, your tooling and your production stay under one roof, which keeps communication direct when a mold needs attention. Explore our injection mold tooling and full manufacturing capabilities.
Design and Engineering
Every project begins with a design for manufacturability review, so our engineers can raise potential production issues before tooling begins. In addition, the team provides 3D CAD modeling, prototyping, and metal-to-plastic conversion engineering. See how our design and engineering team supports new programs.
Custom Plastic Products for Industrial Markets
We produce custom plastic products for manufacturers across several demanding industries:
Although each market has different requirements, every program runs under the same quality management system. Visit our markets overview for details on your industry.
ISO 9001:2015-Certified Quality
Cary Products has held ISO 9001 certification continuously since 2008. Most recently, ABS Quality Evaluations, Inc. renewed our ISO 9001:2015 certification, effective November 20, 2025, and valid through December 2028. Furthermore, the certification covers the design, development, and prototyping of our proprietary custom thermoformed and injection molded plastic products. For buyers qualifying a new supplier, this offers a documented, independently audited quality system.
Why Manufacturers Choose a Domestic Partner
Meanwhile, many industrial buyers are reassessing overseas supply chains. Often, the appeal of a domestic partner comes down to shorter lead times, stronger protection for intellectual property, and direct communication with the people making the parts.
Likewise, our Dallas-area location gives customers practical access to the team and the production floor. From Hutchins, we ship components across the United States and worldwide.
Frequently Asked Questions
What does a custom plastic manufacturer do?
A custom plastic manufacturer produces parts to a customer’s own specifications instead of selling catalog items. At Cary Products, that work includes design support, tooling, injection molding, and thermoforming.
Should I choose injection molding or thermoforming?
Generally, injection molding suits higher volumes, while thermoforming suits larger parts and lower volumes. For a deeper comparison, read our guide to injection molding vs. thermoforming.
What are your lead times?
Lead times vary based on part complexity, tooling requirements, and order volume. Contact our sales team directly for a program-specific estimate.
Where is Cary Products located?
We are located at 101 Lancaster-Hutchins Road, Hutchins, Texas 75141, in the Dallas-Fort Worth area.
Start Your Custom Plastic Manufacturing Program
Whether you are launching a new part or moving an existing program, our team can review your requirements and recommend a production approach. To begin, request a quote or call (972) 225-4271.
