Precision Plastic Injection Molding Solutions in Sacramento
Ronningen Research and Development proudly serves Sacramento, CA with over 50 years of expertise in precision plastic injection molding. Our cutting-edge technology and skilled workforce deliver molded parts that meet the demanding specifications of industries like aerospace, medical technology, telecommunications, and electronics. We collaborate closely with Sacramento manufacturers, providing tailored solutions that speed up development cycles, ensuring products are delivered on time without compromising quality.
In addition to plastic injection molding, Ronningen offers a wide spectrum of manufacturing capabilities including custom tooling, CNC machining, milling, and assembly operations. Our Sacramento facility prioritizes fast, clear communication and efficient project execution. By streamlining manufacturing processes, we help local companies reduce costs and improve product consistency, empowering Sacramento businesses to innovate and thrive.
Comprehensive Manufacturing Services Tailored for Sacramento, CA Industries
Sacramento manufacturers depend on Ronningen Research and Development for a full suite of manufacturing services extending beyond injection molding. Our expertise includes precision tooling fabrication, CNC machining, milling, and an array of finishing operations such as ultrasonic welding, heat staking, and custom packaging. These integrated services help Sacramento companies maintain quality control while optimizing production efficiency.
Our assembly and sub-assembly teams expertly convert raw components into fully finished, market-ready products with precision and reliability. Additional offerings such as custom coloration, drilling, pad printing, and specialized labeling are customized to meet exact product requirements. Ronningen’s full-service manufacturing solutions empower Sacramento industries to scale effectively and enhance product innovation.
Trusted Engineering Support and Quality Assurance for Sacramento, CA Manufacturers
Ronningen Research and Development provides invaluable engineering support to help Sacramento manufacturers refine product designs for manufacturability, cost reduction, and improved performance. Certified under ISO 9001:2015 and employing Six Sigma quality standards, we deliver precision and reliability that meet Sacramento’s industry demands.
Our finishing services include leak testing, custom coloration, part marking, pad printing, and packaging, all executed with rigorous quality management. This comprehensive manufacturing approach guarantees Sacramento clients receive products that combine robustness with aesthetic excellence. Ronningen is the trusted partner supporting manufacturing success across Sacramento’s diverse sectors.
Why Sacramento, CA Manufacturers Choose Ronningen Research and Development
Ronningen Research and Development is the preferred manufacturing partner for Sacramento, CA businesses seeking a diverse range of specialized services. We offer expert plastic injection molding, precision tooling, CNC machining, milling, and full assembly and sub-assembly services. Our value-added processes include custom coloration, custom cutting parts, drilling, electroplating, heat staking, hot stamping, insert molding, and detailed labeling to deliver superior products.
Our finishing portfolio includes leak testing, part marking, pad printing, silk-screening, shielding, ultrasonic welding, painting, spin welding, structural foam molding, taping, trimming, and custom packaging. By centralizing these services, Ronningen enables Sacramento manufacturers to reduce lead times, lower costs, and achieve consistent excellence, positioning us as a vital partner for innovation and growth.
Local Manufacturing Expertise Serving Sacramento, CA and Surrounding Regions
Ronningen Research and Development combines deep local industry insight with nationally recognized quality standards to deliver exceptional manufacturing services in Sacramento, CA. Our experience working with aerospace, medical device, telecommunications, and electronics manufacturers allows us to tailor solutions that comply with rigorous quality and regulatory requirements.
Our client-centered philosophy emphasizes open communication, thorough project management, and flawless execution at every phase. Leveraging advanced manufacturing technologies and ongoing process enhancements, Ronningen empowers Sacramento manufacturers to innovate efficiently and compete in global markets.
Premier Plastic Injection Molding Services in Sacramento, CA




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 Sacramento, CA Businesses
Selecting the right manufacturing partner is crucial for Sacramento, CA companies focused on quality and reliability. Ronningen Research and Development provides clear, detailed answers to frequently asked questions about our plastic injection molding, tooling, machining, assembly, and finishing services. These FAQs offer valuable insights that help Sacramento manufacturers make informed choices backed by our proven expertise and commitment to excellence.
What manufacturing services does Ronningen provide in Sacramento, CA?
Ronningen offers a comprehensive suite of manufacturing services for Sacramento businesses, including precision plastic injection molding, prototype tooling, CNC machining, assembly, and finishing operations. Our secondary services such as custom coloration, ultrasonic welding, heat staking, pad printing, and leak testing are fully integrated to streamline production, reduce lead times, and maintain exceptional quality in sectors like aerospace, medical devices, telecommunications, and electronics.
Can Ronningen handle complex tooling and prototype manufacturing?
Yes, Ronningen excels in designing and fabricating precision molds using aluminum and steel tailored to client needs. Our rapid prototyping services enable Sacramento manufacturers to validate and refine designs quickly, reducing time to market. We collaborate closely with clients to optimize tooling manufacturability and production efficiency, ensuring prototypes meet stringent quality requirements and production readiness.
Which industries does Ronningen serve in Sacramento, CA?
Ronningen supports a broad range of industries in Sacramento including aerospace, medical devices, telecommunications, electronics, and automotive manufacturing. We tailor our manufacturing processes to meet strict regulatory and quality standards, delivering components that ensure product reliability, safety, and superior performance. Sacramento manufacturers depend on Ronningen for precision parts that help maintain their competitive edge.
How does Ronningen ensure quality throughout production?
Quality is fundamental to Ronningen Research and Development. We maintain ISO 9001:2015 certification and rigorously apply Six Sigma methodologies throughout production. Our highly trained technicians perform continuous inspections using advanced testing techniques such as leak detection and non-contact vision inspection. This comprehensive quality management ensures Sacramento manufacturers receive flawless, market-ready components that consistently exceed industry standards.
Do you offer finishing and assembly services in Sacramento, CA?
Absolutely. Ronningen provides a wide 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 Sacramento manufacturers reduce lead times, simplify supply chains, and improve overall product quality.