Plastic Injection Molding & Manufacturing Solutions in Hattiesburg, MS
Ronningen is a trusted provider of high-quality plastic injection molding and manufacturing services in Hattiesburg, Mississippi. With over 50 years of expertise, we specialize in delivering precision-molded plastic parts for various industries, including automotive, aerospace, medical devices, and consumer electronics. Our state-of-the-art facility uses the latest injection molding technology, enabling us to handle projects ranging from small prototype runs to large-scale production with the same level of precision and efficiency.
In addition to injection molding, we offer secondary services such as over molding, insert molding, ultrasonic welding, electroplating, and custom packaging. These in-house services help streamline production, reduce lead times, and ensure that each part meets your functional, aesthetic, and performance requirements. Ronningen is committed to providing reliable, cost-effective manufacturing solutions to businesses in Hattiesburg.
Comprehensive Manufacturing Solutions for Hattiesburg’s Industries
At Ronningen, we provide a complete range of plastic manufacturing services designed to meet the needs of businesses in Hattiesburg. Our plastic injection molding capabilities include traditional injection molding, over molding, and insert molding, allowing us to produce high-quality, precision-molded parts for a variety of industries. Whether you need prototypes for testing or require high-volume production, we ensure that each part meets your exact specifications for performance and durability.
We also provide a variety of secondary services, including machining, leak testing, part marking, electroplating, and custom packaging. All of these services are performed in-house, reducing lead times and ensuring that your parts are ready for use when they leave our facility. By offering a full range of services under one roof, Ronningen streamlines production and simplifies the manufacturing process for businesses in Hattiesburg.
Precision Molding and Advanced Technology for Hattiesburg, MS
Ronningen provides precision plastic injection molding services for businesses in Hattiesburg, utilizing high-tonnage machines and cutting-edge molding technology to produce parts with tight tolerances and complex geometries. Whether you need small, intricate parts or large, high-volume components, we have the technology and expertise to deliver high-quality results. We specialize in services such as ultrasonic welding, spin welding, and structural foam molding to ensure your parts are strong, lightweight, and durable.
In addition to molding, we offer in-house machining, leak testing, and custom cutting services to ensure that each part meets your exact specifications. Our in-house capabilities reduce complexity and streamline your production process, allowing us to deliver high-quality parts with faster turnaround times. Ronningen’s integrated manufacturing solutions make us the ideal partner for businesses in Hattiesburg.
Why Hattiesburg, MS Manufacturers Choose Ronningen
Ronningen is the preferred choice for manufacturers in Hattiesburg because we offer a full range of services beyond plastic injection molding. Our expertise in over molding, insert molding, and structural foam molding allows us to handle the most complex parts with multiple materials and intricate designs. In addition to molding, we provide secondary operations such as machining, electroplating, pad printing, and custom packaging to ensure that your parts meet all functional and aesthetic requirements.
Our ability to manage all these services under one roof reduces lead times, lowers costs, and ensures high-quality results. By offering integrated solutions, Ronningen simplifies the production process and delivers a seamless experience for businesses in Hattiesburg.
Fast, Reliable Manufacturing Solutions for Hattiesburg, MS
Ronningen’s facility in Hattiesburg is designed to deliver fast, reliable, and efficient plastic injection molding services. We understand the importance of quick turnarounds, especially when working with prototypes or on tight deadlines. Whether you need rapid prototyping, small production runs, or large-scale manufacturing, our team has the capacity and experience to handle your project with precision.
In addition to injection molding, we offer secondary services such as machining, leak testing, part marking, and packaging—all completed in-house. This integrated approach ensures faster production times, reduces complexity, and ensures that your parts are delivered on time and meet your exact specifications.
Ronningen R&D: Precision Plastic Injection Molding in Hattiesburg, MS




Our ISO 9001 certified quality management system is registered and certified by NSF International Strategic Registrations and based on a number of quality management principles including:
- A strong customer focus
- Support of top management
- Adherence to a process approach
- Continual improvement
Under the scope of our registration are the following services:
- Prototype plastic injection tooling for molded parts
- Engineering evaluation samples
- Pilot and production plastic components
Our accreditation from NSF provides assurance to our customers that our certified components and products comply with the technical requirements of ISO 9001.
QMMY2.E116158 Fabricated Parts – Component
Underwriters Laboratories is an independent product safety testing and certification organization working for public safety since 1894. Since its founding, U/L has held the reputation as the undisputed leader in product safety and certification, giving consumers peace of mind about the products they use.
("ITAR," 22 CFR 120-130) REGISTERED
All manufacturers of defense articles, related data, and defense services as defined on the United States Munitions List (Part 121 of ITAR) are required to register with the Directorate of Defense Trade Controls (DDTC). ITAR registration is a means to provide the U.S. Government with necessary information on who is involved in certain manufacturing, brokering, and exporting activities.
(MBP3)
Commitment to our air, land, and water quality is paramount at Ronningen. Since 1999, we've served as a Michigan Business Pollution Protection Partner, adopting pollution prevention policies, committing to reductions, and sharing our successes with other MBP3 members.
Expert Plastic Injection Molding & Manufacturing in Hattiesburg, MS
Assembly & Sub-Assembly
At Ronningen Research and Development, we provide expert Assembly & Sub-Assembly services for seamless integration of components. Whether it's simple assemblies or complex multi-part solutions, we ensure precision and efficiency in every process.
Custom Coloration
Our Custom Coloration services offer tailored color options to meet your design and branding needs. We use advanced Plastic Injection Molding techniques to ensure long-lasting, consistent colors for your products.
Custom Cutting Parts
Ronningen Research and Development specializes in Custom Cutting Parts using state-of-the-art machinery. We provide accurate cuts for a variety of materials, meeting the specific needs of your project.
Drilling
We offer high-precision Drilling services to create exact holes in various materials. Our advanced equipment ensures accuracy and quality for projects requiring tight tolerances and consistent results.
Electroplating
Our Electroplating services enhance part durability and corrosion resistance with high-quality metallic coatings. We provide superior finishes for applications in automotive, electronics, and more.
Heat Staking
Heat Staking at Ronningen Research and Development creates strong, reliable bonds between plastic components without the need for additional materials. This process is ideal for parts requiring secure assembly and durability.
Hot Stamping
Hot Stamping services provide a high-quality finish with precision and efficiency. We use advanced techniques to apply logos, designs, and text to parts, ensuring a clean and lasting imprint.
Insert Molding
Insert Molding allows us to mold plastic around metal or other materials to create strong, integrated components. This service provides enhanced functionality and durability for complex applications.
Labeling
We provide precise Labeling services that ensure clear, durable markings for traceability, branding, and compliance. Our labeling process guarantees that your parts are correctly identified and meet industry standards.
Leak Testing
Our Leak Testing services verify the integrity of your products, ensuring they meet safety standards. We provide airtight and watertight testing to prevent failures and guarantee quality.
Machining
We offer high-precision Machining services for custom parts. Using advanced CNC equipment, we deliver consistent, high-performance components for a variety of industries.
Milling
Our Milling services create intricate parts with high accuracy. We use advanced equipment to ensure precise cuts and finishes for your custom projects.
Over Molding
Over Molding at Ronningen Research and Development creates multi-material components for enhanced durability and functionality. We mold plastic over existing parts to meet complex design requirements.
Packaging, Custom
Our Custom Packaging services protect your products during transportation and storage. We offer tailored solutions to ensure your parts arrive safely and in excellent condition.
Pad Printing
We provide Pad Printing services for high-quality markings on various materials. Ideal for branding, labeling, and customization, our process ensures precise, durable prints.
Over Molding
Over Molding at Ronningen Research and Development creates multi-material components for enhanced durability and functionality. We mold plastic over existing parts to meet complex design requirements.
Packaging, Custom
Our Custom Packaging services protect your products during transportation and storage. We offer tailored solutions to ensure your parts arrive safely and in excellent condition.
Pad Printing
We provide Pad Printing services for high-quality markings on various materials. Ideal for branding, labeling, and customization, our process ensures precise, durable prints.
Part Marking
Our Part Marking services at Ronningen Research and Development ensure clear and accurate markings for identification and traceability. We use advanced techniques to apply markings that meet industry standards.
Painting
At Ronningen Research and Development, our Painting services enhance the aesthetic and protective qualities of your parts. We apply durable coatings for both functional and cosmetic purposes.
Silk-screening
We offer Silk-screening services at Ronningen Research and Development for durable, high-quality prints on parts. This process is ideal for logos, designs, and labels, providing precise results for a variety of materials.
Shielding
Our Shielding services at Ronningen Research and Development protect components from electromagnetic interference. We use advanced materials and techniques to ensure reliable performance and compliance with industry standards.
Shipping
At Ronningen Research and Development, we handle Shipping with care, ensuring that your products are securely packaged and delivered on time. Our reliable shipping services help you get your products to the market quickly and safely.
Spin Welding
Spin Welding services at Ronningen Research and Development provide strong, durable bonds for plastic parts. This technique is ideal for creating seamless joints without the need for additional materials.
Structural Foam Molding
We offer Structural Foam Molding at Ronningen Research and Development for lightweight, durable plastic parts. This service provides strong components with a reduced weight, ideal for applications that require high strength without the added bulk.
Taping
Our Taping services at Ronningen Research and Development are designed to provide secure adhesion and protection for your products. We offer custom taping solutions to meet the needs of various industries.
Trimming
At Ronningen Research and Development, we provide Trimming services to finish and refine your parts. Our precise trimming process ensures clean edges and perfect finishes for your molded components.
Ultrasonic Welding
Ultrasonic Welding at Ronningen Research and Development uses high-frequency sound waves to create strong, precise bonds between plastic parts. Ideal for delicate applications, this process ensures high-quality, durable results without the need for adhesives.
Frequently Asked Questions About Plastic Injection Molding in Hattiesburg, MS
At Ronningen, we understand that selecting the right manufacturing partner is key to the success of your project. Below, we’ve answered some of the most frequently asked questions we receive from businesses in Hattiesburg, MS, about our plastic injection molding services. We’re here to provide the clarity you need to make informed decisions and ensure that your project is completed successfully.
Q1: What plastic injection molding services does Ronningen offer in Hattiesburg?
Ronningen offers a full range of plastic injection molding services, including traditional injection molding, over molding, insert molding, and structural foam molding. Additionally, we provide secondary services such as machining, electroplating, leak testing, pad printing, and custom packaging, all performed in-house. This approach helps streamline the production process and ensures high-quality, efficient results.
Q2: Can Ronningen handle both small prototypes and large-scale production?
Yes, Ronningen is equipped to handle both small-batch prototypes and high-volume production runs. Whether you need a few hundred parts for testing or millions for full-scale production, we ensure precision and consistency across all production volumes. Our advanced equipment and skilled team can scale production to meet your needs without sacrificing quality.
Q3: How does Ronningen ensure the quality of molded parts?
We follow ISO 9001:2015 standards for quality management and use advanced inspection systems such as CMMs, vision cameras, and leak testers to ensure that every part meets your exact specifications. Our quality control processes are designed to monitor every stage of production to ensure that all parts meet the highest standards of performance and durability.
Q4: What materials does Ronningen use for plastic injection molding?
Ronningen works with a variety of materials, including polypropylene, ABS, polycarbonate, and high-performance thermoplastics. We assist clients in selecting the best material for their parts based on factors like durability, temperature resistance, and regulatory compliance. Additionally, we offer custom coloration services to match your design specifications.
Q5: Does Ronningen offer prototype injection molding services?
Yes, Ronningen specializes in prototype injection molding. Our rapid prototyping services allow you to test designs, materials, and performance early in the process before committing to full-scale production. We ensure that your prototype meets all functional and aesthetic requirements, reducing risks and ensuring the final product performs as intended.