Welcome toRonningen Research & Development
At Ronningen, we provide custom injection molding services to meet the unique needs of each client. Our cutting-edge technology and innovative processes ensure your parts are produced with unmatched precision and speed. We specialize in creating injection molded parts for a wide range of applications, ensuring functionality, durability, and top-notch performance.
What Sets Ronningen Apart:
- Precision Mold Making
- Custom Tooling for Complex Designs
- Trusted Since 1966
Revolutionizing Plastic Injection Molding with Cutting-Edge Precision
- High-quality molding for a wide range of plastic parts.
- Ideal for both large-scale production and prototypes.
- Fast production time with high precision.
- Cost-efficient for complex, multi-part components.
Prototype Development
- Rapid prototyping for quick product validation.
- Design support to enhance manufacturability.
- Short lead times for faster market entry.
- Prototype tooling and sample production.
Tooling & Mold Making
- Custom molds engineered for durability.
- In-house tooling with advanced CNC machining.
- Maintenance and repair of existing molds.
- Design optimization for efficient production.
Secondary Services
- Ultrasonic welding and spin welding.
- Hot stamping, pad printing, and labeling.
- Custom coloration, trimming, and assembly.
- Leak testing, electroplating, and shielding.
Delivering Precision Plastic Injection Molding Across Every Industry
At Ronningen Research & Development, we deliver precision plastic injection molded parts across a wide range of industries, ensuring the highest standards of performance and reliability. With over 50 years of experience, we specialize in providing high-quality parts for sectors such as medical devices, aerospace, telecommunications, and consumer electronics. Our advanced injection molding technology and dedicated engineering team ensure each part is crafted to exact specifications, offering exceptional functionality and durability. Whether you need rapid prototyping or high-volume production, we offer scalable solutions that adapt to the needs of your industry. At Ronningen, we are committed to superior quality, fast turnaround times, and continuous innovation, driving success for every market we serve.
About Ronningen Research & Development
Our Core Strengths
- Proven Precision Delivery
- Advanced In-House Tooling
- Expert Engineering Support
Q1: What industries do you serve with your plastic injection molding services?
Q2: Can Ronningen handle both small prototype runs and large-scale production?
Q3: How do you ensure the quality of your injection molded parts?
Q4: What materials do you use for injection molding?
Q5: What makes Ronningen different from other plastic injection molding companies?
Shaping the Future of Precision Plastic Injection Molding
Our Focus
Our Approach
Our Experience
Pioneering Solutions Across All Our Molding Services
At Ronningen Research & Development, we are committed to continuous innovation across all our molding services. Our processes are meticulously designed to improve precision, reduce lead times, and deliver superior results across various projects, whether it’s plastic injection molding, custom tooling, over molding, or insert molding. Through the integration of advanced technology and expert craftsmanship, we provide customized solutions that ensure your business stays ahead of the competition. We excel in offering diverse services such as prototype development, machining, electroplating, pad printing, and painting, making us your one-stop shop for all manufacturing needs. Our dedication to innovation guarantees that each part we create meets the highest standards of quality, reliability, and performance.
Precision Engineering
Smart Automation
Real-Time Monitoring
Every project is unique, and our team offers tailored plastic injection molding solutions designed to meet specific industry needs and challenges.
Design Flexibility
Material Expertise
Scalable Production
Ronningen prioritizes Six-Sigma-level quality in every part, backed by ISO certification and rigorous testing to ensure absolute reliability.
ISO Certified Processes
Defect Prevention
Continuous Improvement
Partnering with Global Leaders for Superior Plastic Molding Solutions
At Ronningen Research & Development, we take pride in our long-standing partnerships with some of the world’s most innovative companies in industries such as medical devices, aerospace, telecommunications, and consumer electronics. Our reputation for delivering high-quality molded parts, custom tooling solutions, and precision manufacturing has earned us the trust of Fortune 100 and 500 OEMs. Each collaboration underscores our commitment to precision, on-time delivery, and uncompromising quality. With over 50 years of experience, Ronningen continues to lead the industry by providing scalable solutions and outstanding customer service that meets the needs of a rapidly evolving marketplace.
Years of Expertise
Satisfied Clients
Parts Manufactured
Quality Commitment
Industries Served
Certified Injection Molding: ISO & UL, ITAR & MBP3




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.
Meet Our Experts in Plastic Molding and Advanced Manufacturing





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