Plastic Injection Molding & Full-Service Manufacturing in Lafayette, LA
In Lafayette, Louisiana, Ronningen delivers end-to-end plastic manufacturing solutions designed for high performance and reliability. We specialize in precision plastic injection molding, but our services extend far beyond basic production. Our experienced team partners with OEMs across medical, aerospace, telecom, and electronics industries to bring innovative plastic components to life. By integrating engineering, tooling, and advanced manufacturing processes, we streamline your journey from concept to completion while maintaining industry-leading quality standards.
Ronningen’s Lafayette operations feature custom support for insert molding, over molding, heat staking, pad printing, and structural foam molding. Our engineers guide you through material selection and part design, ensuring optimal strength, accuracy, and manufacturability. Whether you’re starting with a prototype or ready for full-scale production, our in-house resources minimize downtime, boost throughput, and help you meet aggressive deadlines.
Complete Production & Post-Processing for Every Industry
Ronningen supports manufacturers in Lafayette, LA with everything from mold design to finished parts, packaged and ready to ship. We offer capabilities such as ultrasonic welding, custom cutting, painting, labeling, and taping to finalize your parts to exact specifications. Whether you require tight tolerance plastic housings or high-volume custom components, our systems are designed for efficiency and scalability. Every part passes through rigorous quality controls using advanced inspection systems and ISO 9001:2015 standards.
Our end-to-end solutions include hot stamping, trimming, machining, and surface finishing for cosmetic and functional perfection. For businesses that rely on consistent part delivery, we also provide packaging, shipping, and inventory support. Our dedicated team in Lafayette ensures your parts meet both technical and branding requirements through every phase.
Built to Handle Prototyping & Scaled Production in Lafayette
Our Lafayette facility is built to support your project through every stage, from single-cavity prototype molds to full multi-cavity production runs. With a variety of machines—ranging from 25 to 1100 tons—we provide flexible capacity tailored to your order size. You can expect detailed support across all services, including leak testing, spin welding, over molding, and insert molding. Our team evaluates your parts for manufacturability and performance before transitioning into full-scale production.
Ronningen’s engineers understand the speed of today’s markets. That’s why we’ve created a streamlined environment where every department works in sync to reduce bottlenecks and errors. From thermoplastics to custom colors and finishing, we deliver everything on time and on target. If your team needs fast turnarounds and long-term consistency, we’re ready to help.
Why Lafayette Businesses Rely on Ronningen’s Complete Capabilities
Ronningen’s reputation in Lafayette, Louisiana is built on our ability to offer more than just injection molding—we provide every piece of the puzzle. With services like ultrasonic welding, pad printing, part marking, and electroplating available under one roof, we give you control, consistency, and cost efficiency throughout production. We also specialize in structural foam molding, machining, silk-screening, and spin welding, offering solutions for parts that require strength, weight reduction, or decorative finishes.
Clients benefit from our deep engineering experience and extensive equipment lineup, including advanced molding systems, CNC machines, stamping presses, and vision inspection tools. We also offer trimming, taping, hot stamping, labeling, custom coloration, and sub-assembly work. Whether you need small-batch prototyping or national-scale production, our team has the tools and expertise to deliver. We make your supply chain stronger and more streamlined with a single point of contact from mold build to final shipment.
We Proudly Serve All of Lafayette, Louisiana and Beyond
Ronningen proudly delivers world-class plastic parts and manufacturing services to businesses across Lafayette. Our efficient logistics systems allow us to fulfill orders quickly, whether you’re in downtown Lafayette or the surrounding region. With decades of experience supporting Louisiana-based industries, we’ve developed an agile and responsive workflow that allows us to scale with your needs and respond to challenges in real time. Every customer receives hands-on project support to keep things moving from concept to completion.
We combine reliable shipping with integrated finishing and packaging, so your parts arrive on time, every time. With internal capabilities like drilling, milling, heat staking, and machining, we eliminate the need for external vendors and deliver unmatched product consistency. Ronningen brings national-level resources and local customer service together for a seamless manufacturing experience in Lafayette.
Our Certifications




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.
Our Comprehensive Manufacturing Services: Plastic Injection Molding & More
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.
Your Questions Answered – Ronningen’s Lafayette Services FAQ
As Lafayette continues to grow its manufacturing footprint, companies here seek trustworthy partners who can meet tight specs, fast timelines, and exacting quality standards. Ronningen is proud to support that mission. Whether you’re exploring over molding, ultrasonic welding, electroplating, or injection molding for the first time—or you’re scaling up existing production—we’re here to make the process simple. Here are answers to the most common questions we receive from Louisiana clients looking to enhance their plastic part production.
Q1: Can I get both molding and finishing done at Ronningen in Lafayette?
Yes! We offer complete in-house solutions, including injection molding, pad printing, hot stamping, trimming, silk-screening, electroplating, ultrasonic welding, and custom packaging. This eliminates the delays and quality risks of outsourcing. Ronningen helps you save time and improve consistency by managing everything under one roof—from design support and tooling to finished part delivery.
Q2: Do you accept short production runs or only large batches?
We support both! Ronningen specializes in scalable production, which means we’re equally prepared to handle prototype batches or millions of parts. Whether you need a few hundred components for pilot testing or ongoing high-volume orders, our facility in Lafayette is equipped for fast turnarounds and tailored production timelines.
Q3: How do you maintain quality for complex part geometries?
Our ISO 9001:2015-certified processes include full part validation and quality checks at every stage. We use automated vision inspection systems, coordinate measuring machines (CMMs), and leak testers to ensure that even the most detailed geometries meet performance and compliance standards. Complex doesn’t scare us—it inspires us.
Q4: What types of plastics and materials do you use?
Ronningen stocks over 250 types of plastic resins, including high-performance engineering thermoplastics and commodity materials like polypropylene and ABS. We assist clients in selecting the best resin based on part performance, environment, and regulatory requirements. Custom coloration and blends are also available based on your specifications.
Q5: Which industries do you serve most frequently in Lafayette?
We work with a wide range of sectors, including medical, telecom, automotive, aerospace, electronics, and consumer goods. Our diversified equipment and expert staff allow us to meet both highly regulated and performance-driven industry needs. No matter your niche, we’re ready to deliver tailored solutions that perform.