Contact Ronningen R&D's Los Angeles Injection Molding Experts
Ronningen Research and Development proudly serves Los Angeles, CA with over 50 years of experience delivering high-precision plastic injection molding solutions. Our advanced technologies and seasoned engineers ensure that every component meets the stringent quality and performance standards demanded by industries such as aerospace, medical devices, consumer electronics, and telecommunications. We collaborate closely with Los Angeles manufacturers, offering customized production strategies that accelerate development cycles and help bring innovative products to market faster.
In addition to injection molding, Ronningen provides an extensive range of manufacturing capabilities including precision tooling, CNC machining, milling, and comprehensive assembly services. Our Los Angeles facility is equipped to manage complex projects with rapid response times and unparalleled communication. By streamlining workflows and optimizing production efficiency, we empower Los Angeles businesses to reduce costs and enhance product quality in a highly competitive environment.
Comprehensive Manufacturing Services Customized for Los Angeles, CA Industries
Los Angeles manufacturers rely on Ronningen Research and Development for a holistic approach to manufacturing that goes beyond plastic injection molding. Our services include precision tooling fabrication, CNC machining, milling, and finishing processes like ultrasonic welding, heat staking, and custom packaging. This all-encompassing service model helps Los Angeles clients maintain superior control over quality and production timelines.
Our assembly and sub-assembly teams in Los Angeles specialize in transforming raw components into fully assembled, ready-for-market products with precision and efficiency. Additional offerings such as custom coloration, drilling, pad printing, and detailed labeling are tailored to meet the unique specifications of each project. Ronningen’s integrated manufacturing solutions support Los Angeles industries in scaling operations and driving innovation.
Reliable Engineering Support and Quality Assurance for Los Angeles, CA Manufacturers
At Ronningen Research and Development, our engineering team is dedicated to helping Los Angeles manufacturers enhance their product designs for optimal manufacturability and performance. With ISO 9001:2015 certification and Six Sigma quality standards in place, we ensure each product meets the highest level of accuracy and consistency demanded in the Los Angeles market.
Our finishing services, including leak testing, custom coloration, pad printing, part marking, and packaging, are conducted under strict quality protocols. This comprehensive approach guarantees Los Angeles manufacturers receive products that are robust, compliant, and visually appealing. Ronningen stands as a trusted partner for manufacturing excellence in the Los Angeles industrial sector.
Why Los Angeles, CA Manufacturers Choose Ronningen Research and Development
Ronningen Research and Development is the go-to manufacturing partner for Los Angeles businesses requiring a diverse range of specialized services. We deliver precision plastic injection molding, tooling, CNC machining, milling, and thorough assembly and sub-assembly operations. Our value-added services such as custom coloration, custom cutting, drilling, electroplating, heat staking, hot stamping, insert molding, and detailed labeling ensure products of exceptional quality.
Further finishing capabilities include leak testing, pad printing, part marking, silk-screening, shielding, ultrasonic welding, painting, spin welding, structural foam molding, taping, trimming, and custom packaging. Ronningen’s ability to consolidate these processes under one roof helps Los Angeles manufacturers reduce lead times, control production costs, and maintain product consistency, fueling their growth and innovation.
Local Expertise with National Quality Standards Serving Los Angeles, CA
Ronningen Research and Development combines local industry knowledge with national quality certifications to deliver outstanding manufacturing services in Los Angeles, CA. We understand the city’s diverse manufacturing landscape—from aerospace and medical devices to telecommunications and electronics—allowing us to customize solutions that meet strict quality and regulatory demands.
Our client-focused approach emphasizes clear communication, precise project management, and seamless execution. Leveraging state-of-the-art manufacturing technologies and continuous improvement, Ronningen empowers Los Angeles manufacturers to innovate efficiently and maintain a competitive edge in the global marketplace.
Ronningen R&D: Injection Molding Services in Los Angeles, 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 Los Angeles, CA Businesses
Choosing the right manufacturing partner is essential for Los Angeles, CA companies aiming for reliable, high-quality production. Ronningen Research and Development provides thorough answers to common questions about our plastic injection molding, tooling, machining, assembly, and finishing services. These FAQs help Los Angeles manufacturers make informed decisions backed by our expertise and commitment to quality.
What manufacturing services does Ronningen provide in Los Angeles, CA?
Ronningen offers a comprehensive portfolio of manufacturing services for Los Angeles clients, including precision plastic injection molding, prototype tooling, CNC machining, assembly, and finishing operations. Secondary services such as custom coloration, ultrasonic welding, heat staking, pad printing, and leak testing are integrated to streamline production, shorten lead times, and maintain exceptional quality in aerospace, medical, telecommunications, and electronics sectors.
Can Ronningen handle complex tooling and prototype manufacturing?
Absolutely. Ronningen specializes in designing and fabricating high-precision molds using aluminum and steel customized to client requirements. Our rapid prototyping services help Los Angeles manufacturers test and refine designs efficiently, reducing time to market. We collaborate closely with clients to optimize tooling manufacturability and production workflows, ensuring prototypes meet stringent quality standards and are ready for large-scale manufacturing.
Which industries does Ronningen serve in Los Angeles, CA?
Ronningen proudly supports a variety of Los Angeles industries including aerospace, medical devices, telecommunications, electronics, and automotive manufacturing. Our manufacturing processes adhere to strict regulatory and quality standards. We customize solutions to meet the unique needs of each industry, delivering components that provide reliability, safety, and exceptional performance.
How does Ronningen ensure quality throughout production?
Quality is fundamental at Ronningen Research and Development. We hold ISO 9001:2015 certification and rigorously apply Six Sigma principles throughout the production process. Skilled technicians perform ongoing inspections and utilize advanced testing like leak detection and non-contact vision inspection. This comprehensive quality assurance guarantees Los Angeles manufacturers receive flawless, ready-to-use components that consistently exceed industry standards.
Do you offer finishing and assembly services in Los Angeles, CA?
Yes, Ronningen provides a full suite 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 handle complex product builds, delivering fully finished, market-ready goods. These integrated services help Los Angeles manufacturers reduce lead times, simplify supply chains, and enhance overall product quality and reliability.
