Custom Injection Molding

For 70+ years, Crescent Industries has been a custom plastic parts manufacturer providing the most comprehensive solutions in custom injection molding to a wide range of industries and product applications. With our tonnage range of 35 tons to 385 tons and vertical injection molding capabilities, we have strategically invested to provide our customers with custom molded plastic parts and solutions to their supply chain issues.

  • Scientific Injection Molding & SPC

  • Kitting, Value Add, Robotics

  • Engineering Design & Development

  • In-House Tool Room

  • ISO 13485:2016 Certified, FDA, FFL & ITAR Registered

  • Swiss-Screw Machining

various Custom Molding Markets

Whether it’s a simple product design or a complex assembly using our internal robotics and hand-assembly, we have the custom plastic molding capabilities to fit your requirements and your supply chain expectations.


The Scientific Approach

Utilizing our Scientific Injection Molding Principles, SPC and state-of-the-art Injection Molding Machines, our focus is to provide our customers with a robust custom plastic injection molding process to produce the highest level of quality for our components and devices. This begins in the early stages in our Design For Manufacturability (DFM), through our qualification and Decoupled Molding process and optimized using our in-process inspection criteria with high-end measurement equipment.


  • Medical

  • Pharmaceutical

  • Military & Defense

  • Dental

  • Aerospace

  • Industrial

  • Electronics & Electrical

  • Safety

International Traffic in Arms Regulations logo
ISO 13485 Certified
Federal Arms License logo
Food and Drug Administration logo

In each of these industries, we know quality and precision are key for each component.  For that reason, we have on-site, dedicated personnel and equipment to perform part inspections for final product success. At Crescent Industries, we draw on our deep expertise to take on your project at any step of development — from concept to production — and are able to assist with design, engineering, manufacturability, secondary processes and more.

Our extensive experience in development and production has given us a deep understanding of what makes a successful process, and we apply the benefits of our CNC milling service to help you achieve that. Benefits include:

Engineering- and technology-focused personnel: Our engineers take a scientific approach to design and engineering, ensuring efficiency, quality and results.

A versatile suite of capabilities: In addition to our CNC machining services, we offer a number of other services to assist you in every step of development — 3D printing for prototypes and testing, plastic injection molding for products requiring both plastic and metal components, kitting services to aid in finishing and fulfillment, and value-add services such as finishing, assembly and packaging.

Manufacturability expertise: In bridging the process from design to production, manufacturability is a key concern in ensuring quality and efficiency during production. Our engineers take manufacturability into account throughout the entire process, and can work with you to apply these best practices to your product. Factors include mold design, material selection, production time, process choice and more.

Process flexibility: Whether you are completing all production processes under our roof, or need components or products sent to another supplier, we are ready to assist you in any way we can. Whether for the full design and engineering cycle or just for a certain aspect of production, our expertise is available to make your product the best it can be.

70+ years providing extensive capabilities…

  • Scientific Injection Molding

  • 3D Printing (Additive Manufacturing)

  • Mold Flow and DFM Analysis

  • Kitting, Assembly & Value Add

  • Swiss-Screw Machining

  • In-house Tooling Capabilities

  • Product & Tooling Design

  • Quality Control

  • Product Development

Sampling of our Molding…


  • Device Assembly

  • Product Packaging

  • CNC Machining

  • Laser Engraving

  • Pad Printing

  • Ultra-Sonic Welding

  • EMI or RFI Shielding

  • Heat-Staking Inserts

  • Solvent or UV Bonding

  • Ultra-Sonic Cleaning

  • Cap-Lining

  • Annealing

  • Vacuum/Pressure Testing

  • Sterilization

  • Silk Screening

Engineering Expertise

With our continued investments into engineering resources, our team has the expertise and technical knowledge to assist with your products across various stages and complexity. We love to get involved in the earliest stages of product development to make sure that our customers have the plastic engineering expertise avoiding any costly hiccups in the development process. We work directly with our customers engineering teams providing guidance on the manufacturability of parts ready to be custom injection molded or to create a mold design with the proper actions, gate locations, temperature control and venting.

By utilizing Sigma Soft mold fill simulation software we complete a 3D simulation of how the mold fills, packs and cools during the injection molding process is generated as part of our DFM analysis process. Therefore, problems or concerns can be solved before the parts or mold are even produced.


70+ Years of Manufacturing Solutions

Through Engineering, Experience & Excellence…


Inserts can be molded into a diverse range of critical plastic components. These components can be used in housings, instruments, knobs and electrical components. Which can be utilized in the medical, defense, aerospace, electronics/electrical, industrial and consumer markets.

  • Magnets

  • Screws

  • Studs

  • Contacts

  • Spring Contacts

  • Surface Mount Pads

  • Rivets

  • Threaded-Fasteners

  • Clips

  • Pins

  • Bushings

  • Tubes