Plastic Injection Molding & Manufacturing Services in Frederick, MD
Ronningen is proud to provide high-quality plastic injection molding and manufacturing solutions to businesses in Frederick, Maryland. With over 50 years of industry experience, we specialize in delivering precision-molded plastic parts for a variety of industries, including medical devices, aerospace, automotive, and consumer electronics. Our advanced facility is equipped with state-of-the-art injection molding technology that ensures we can efficiently handle everything from prototype development to high-volume production.
In addition to traditional injection molding, we offer a range of secondary services such as over molding, insert molding, ultrasonic welding, and electroplating. These additional capabilities enable us to meet the complex needs of our clients, ensuring that each part is functional, durable, and aesthetically pleasing. Ronningen is your trusted manufacturing partner in Frederick, dedicated to delivering reliable, cost-effective solutions for all your plastic molding needs.
Complete Plastic Manufacturing Solutions for Frederick Industries
At Ronningen, we offer comprehensive plastic manufacturing services that are tailored to meet the unique needs of Frederick’s diverse industries. Our services include plastic injection molding, over molding, insert molding, and structural foam molding, designed to provide high-quality and cost-effective solutions. We work with a variety of materials, including engineered thermoplastics and commodity plastics, to create durable, high-performance parts that meet your specific requirements.
We also provide a full suite of secondary services such as leak testing, machining, custom cutting, and pad printing, ensuring that every part is produced to the highest standards. By handling all aspects of production in-house, we reduce lead times, improve quality, and help you streamline your manufacturing process. Ronningen is committed to delivering consistent, reliable, and efficient manufacturing solutions to businesses in Frederick.
Precision Molding and Advanced Manufacturing in Frederick, MD
Ronningen combines advanced plastic injection molding technology with precision engineering to deliver high-quality parts for businesses in Frederick. Our molding machines, ranging from 25 to 1100 tons, allow us to handle both small and large-scale production runs. We offer a wide variety of specialized services such as ultrasonic welding, structural foam molding, and spin welding, ensuring your parts are produced with precision, strength, and durability.
In addition to our molding services, we provide machining, milling, and leak testing to guarantee the highest levels of quality. With our in-house capabilities, we ensure that every part is accurately produced to your exact specifications, and we also offer custom packaging and shipping services for seamless delivery. Ronningen is your one-stop solution for precision plastic manufacturing in Frederick.
Precision Plastic Injection Molding Services in Frederick, MD
Ronningen is the preferred choice for manufacturers in Frederick, MD because we offer a full suite of services, including plastic injection molding, over molding, insert molding, and ultrasonic welding. Our team works closely with you from start to finish, providing custom solutions that meet your exact production requirements. With over 50 years of experience, we understand the unique needs of businesses in industries such as medical, automotive, and aerospace, and we tailor our services accordingly.
We are committed to ensuring the highest quality and precision at every stage of production. Our facility is equipped with advanced technology, including high-tonnage injection molding machines and automated quality control systems, to ensure your parts are produced to specification. Ronningen’s comprehensive services help simplify your supply chain, reduce costs, and deliver reliable, high-quality parts on time.
Reliable and Efficient Manufacturing Solutions for Frederick, MD
Ronningen’s manufacturing facility in Frederick is designed to support local businesses with fast, efficient, and high-quality plastic injection molding services. We understand that time is critical, especially when working with prototypes or tight deadlines. Our team is equipped to handle both small-scale prototype runs and large production runs, ensuring your parts are delivered on time, every time.
We provide in-house services such as machining, leak testing, custom cutting, and part marking, allowing us to deliver finished products that are ready for use. Our integrated approach simplifies the manufacturing process, reduces lead times, and ensures that your parts meet the highest quality standards. Ronningen is here to help you achieve your production goals with fast, reliable service.
Expert Plastic Injection Molding in Frederick, MD – Ronningen RD




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.
Frequently Asked Questions About Plastic Injection Molding in Frederick, MD
At Ronningen, we receive numerous questions about our plastic injection molding services and the benefits they provide to businesses in Frederick, MD. Below are some of the most frequently asked questions from local manufacturers. Our goal is to help you understand how we can support your production needs and provide the highest-quality plastic molding solutions for your business.
Q1: What types of plastic injection molding services does Ronningen provide in Frederick?
Ronningen offers a full range of plastic injection molding services, including traditional injection molding, over molding, insert molding, and structural foam molding. We also provide secondary operations such as electroplating, machining, pad printing, and custom packaging to ensure that every part is produced to meet your functional and aesthetic requirements. Our team works closely with you to understand your needs and deliver high-quality, cost-effective solutions.
Q2: Can Ronningen handle both small prototypes and large production runs?
Yes, Ronningen is fully equipped to handle both small-batch prototypes and large-scale production runs. We offer flexible production capabilities, ensuring that we can meet the needs of your project, whether you’re looking to test a few parts or scale up to full production. Our advanced equipment and experienced team ensure that quality and precision are maintained across all production volumes.
Q3: How does Ronningen ensure the quality of the molded parts?
Ronningen follows ISO 9001:2015 certified processes for quality management. We use advanced inspection systems, including CMMs, vision inspection cameras, and leak testers, to ensure that each part meets your exact specifications. Our team conducts rigorous quality control checks at every stage of production to ensure consistent performance and reliability for all molded parts.
Q4: What materials does Ronningen use for injection molding?
Ronningen works with a wide range of materials, including polypropylene, ABS, polycarbonate, and high-performance thermoplastics. We help you choose the right material based on your part’s functionality, durability, and regulatory requirements. We also offer custom coloration and material blending to match your specific design and aesthetic needs.
Q5: Does Ronningen provide prototype injection molding services?
Yes, Ronningen specializes in prototype injection molding. Our team works closely with you to develop and test prototypes before committing to full-scale production. This process allows you to validate your designs, materials, and performance requirements, ensuring that the final product meets your expectations. We help reduce the risks and costs associated with scaling up production.