Premier Plastic Injection Molding Solutions in Louisville, KY
Ronningen Research and Development brings over 50 years of expertise to Louisville, KY, specializing in precision plastic injection molding. Our advanced machinery and highly skilled team create high-quality components tailored for industries such as aerospace, medical devices, telecommunications, and electronics. By working closely with Louisville manufacturers, we provide customized solutions that streamline production timelines while ensuring superior product quality and performance.
Beyond plastic injection molding, Ronningen offers a broad spectrum of manufacturing services, including custom tooling, CNC machining, milling, and assembly operations. Our Louisville facility is focused on efficient project management and seamless communication, helping local businesses reduce costs and stay ahead in a competitive marketplace.
Comprehensive Manufacturing Services for Louisville, KY Industries
Louisville manufacturers depend on Ronningen Research and Development for a complete range of manufacturing solutions extending beyond plastic injection molding. We specialize in precision tooling fabrication, CNC machining, milling, ultrasonic welding, heat staking, and custom packaging. These capabilities enable Louisville companies to maintain top-quality standards while maximizing production efficiency.
Our assembly and sub-assembly teams ensure raw materials are converted into fully finished, market-ready products with precision and reliability. Additionally, we offer services like custom coloration, drilling, pad printing, and detailed labeling to meet the specific needs of each project. Ronningen’s holistic manufacturing approach empowers Louisville industries to innovate and scale with confidence.
Engineering Excellence and Quality Control for Louisville, KY Manufacturers
Ronningen Research and Development’s engineering team collaborates closely with Louisville manufacturers to optimize product designs for manufacturability, cost-efficiency, and superior performance. Our team is certified under ISO 9001:2015 and applies Six Sigma principles to ensure every product meets stringent industry standards. We work alongside clients to ensure that designs translate into efficient, compliant production processes.
We also offer comprehensive finishing services such as leak testing, custom coloration, pad printing, part marking, and packaging—all conducted under strict quality control. This ensures Louisville manufacturers receive products that are durable, compliant, and visually superior. Ronningen is your trusted partner for manufacturing excellence.
Why Louisville, KY Manufacturers Choose Ronningen Research and Development
Ronningen Research and Development is the preferred manufacturing partner for Louisville, KY businesses needing a wide variety of specialized services. We offer precision plastic injection molding, expert tooling, CNC machining, milling, and complete assembly and sub-assembly operations. Our value-added services include custom coloration, custom cutting, drilling, electroplating, heat staking, hot stamping, insert molding, and detailed labeling to ensure premium product quality.
We also offer finishing services such as leak testing, part marking, pad printing, silk-screening, shielding, ultrasonic welding, painting, spin welding, structural foam molding, taping, trimming, and custom packaging. Consolidating these services allows Louisville manufacturers to reduce lead times, lower costs, and maintain consistent excellence. Ronningen supports innovation and growth across Louisville’s manufacturing sector.
Local Expertise Combined with National Quality Standards Serving Louisville, KY
Ronningen Research and Development combines local industry insight with nationally recognized quality certifications to provide exceptional manufacturing services in Louisville, KY. We specialize in aerospace, medical device, telecommunications, and electronics sectors, offering solutions that meet rigorous regulatory and quality standards.
Our client-first approach ensures transparent communication, thorough project management, and flawless execution at every phase. Leveraging advanced manufacturing technologies and continuous process improvements, Ronningen empowers Louisville manufacturers to innovate effectively and remain competitive in a global market.
Precision Plastic Injection Molding Services in Louisville, KY




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.
Ronningen Research and Development’s Manufacturing FAQs for Louisville, KY Businesses
Choosing the right manufacturing partner is essential for Louisville companies seeking reliable, high-quality production. Ronningen Research and Development provides clear answers to commonly asked questions about our plastic injection molding, tooling, machining, assembly, and finishing services. These FAQs offer insights to help Louisville manufacturers make well-informed decisions.
Can Ronningen handle complex tooling and prototype manufacturing?
Yes, Ronningen specializes in designing and fabricating precision molds made from aluminum and steel customized to client needs. Our rapid prototyping services help Louisville manufacturers validate designs quickly, shortening product development cycles. We collaborate closely to optimize tooling manufacturability and streamline production workflows, ensuring prototypes meet stringent quality standards and production readiness.
Which industries does Ronningen serve in Louisville, KY?
Ronningen supports a variety of industries in Louisville, including aerospace, medical devices, telecommunications, electronics, and automotive manufacturing. We tailor manufacturing processes to meet strict regulatory and quality standards. Louisville manufacturers trust Ronningen to deliver precision components that enhance product performance and maintain a competitive advantage.
How does Ronningen ensure quality throughout production?
Quality is a fundamental pillar at Ronningen Research and Development. We maintain ISO 9001:2015 certification and apply Six Sigma quality management throughout all stages of production. Skilled technicians conduct continuous inspections using advanced testing methods such as leak detection and non-contact vision inspection. This ensures that Louisville manufacturers receive flawless, market-ready products that exceed industry standards.
Do you offer finishing and assembly services in Louisville, KY?
Absolutely. Ronningen provides a comprehensive range of finishing services, including custom coloration, pad printing, silk-screening, heat staking, ultrasonic welding, painting, and custom packaging. Our assembly and sub-assembly teams expertly manage complex product builds, delivering fully finished, market-ready products. These integrated services help Louisville manufacturers reduce lead times, simplify supply chains, and enhance overall product quality.
What is the typical lead time for projects at Ronningen in Louisville?
Lead times vary based on project complexity and volume. However, Ronningen’s efficient processes ensure fast turnaround times while maintaining product quality. We work closely with Louisville clients to set realistic schedules, often delivering projects within weeks or months depending on the scope and urgency.