Plastic Injection Molding & Manufacturing Solutions in Nashua, NH
Comprehensive Manufacturing Solutions for Nashua’s Industries
At Ronningen, we offer a complete range of plastic manufacturing services designed to meet the needs of businesses in Nashua. Our plastic injection molding services include over molding, insert molding, and structural foam molding, ensuring that every part we produce is durable, high-performance, and meets your specifications. Whether you need prototypes for testing or full production runs, our advanced equipment ensures high-quality results with every part.
We also provide several secondary services such as machining, leak testing, electroplating, part marking, and packaging, all performed in-house. By offering these services under one roof, we help reduce lead times and streamline your production process. Ronningen’s integrated approach ensures that your parts meet both functional and aesthetic requirements while delivering cost-effective solutions.
Precision Plastic Injection Molding for Nashua, NH
Ronningen provides precision plastic injection molding services for businesses in Nashua, NH, using advanced technology and high-tonnage machines to produce parts with tight tolerances and complex geometries. Whether you need small, intricate components or large-volume parts, we have the equipment and expertise to meet your specific needs. We specialize in services like ultrasonic welding, spin welding, and structural foam molding, which ensure that your parts are durable and lightweight while maintaining excellent performance.
In addition to molding, we offer in-house machining, leak testing, and custom cutting to ensure that each part meets your exact requirements. By offering all of these services in-house, Ronningen reduces complexity, improves efficiency, and ensures high-quality results with faster turnaround times.
Why Nashua, NH Manufacturers Choose Ronningen
Ronningen is the preferred choice for Nashua, NH manufacturers because we provide a full range of services that simplify the production process and meet the unique needs of local industries. We specialize in precision molding, over molding, insert molding, and structural foam molding, ensuring that each part is manufactured to meet both functional and aesthetic requirements. Our team works closely with you to optimize part designs, material selections, and production schedules to ensure the best results.
In addition to molding, we offer secondary services such as machining, electroplating, part marking, and custom packaging, all completed in-house. This integrated service model helps reduce lead times, eliminate the need for multiple suppliers, and streamline production. Ronningen’s expertise and in-house capabilities make us the go-to partner for manufacturers in Nashua, ensuring that your parts are delivered on time and meet the highest quality standards.
Fast, Reliable Manufacturing Solutions for Nashua, NH
Precision Plastic Injection Molding & Manufacturing in Nashua, NH




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.
Plastic Injection Molding Services in Nashua, NH
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 Nashua, NH
At Ronningen, we understand that choosing the right manufacturing partner is essential for the success of your project. Below, we’ve answered some of the most frequently asked questions about our plastic injection molding services and capabilities in Nashua, NH. We are here to provide you with the clarity you need to make informed decisions and ensure your project is a success.
Q1: What plastic injection molding services does Ronningen offer in Nashua?
Ronningen offers a wide range of plastic injection molding services, including traditional injection molding, over molding, insert molding, and structural foam molding. Additionally, we provide secondary services such as machining, electroplating, leak testing, pad printing, part marking, and custom packaging. These in-house services help streamline production, reduce lead times, and ensure that your parts meet the highest quality standards.
Q2: Can Ronningen handle both small prototypes and high-volume production?
Yes, Ronningen is fully equipped to handle both small-batch prototypes and high-volume production runs. Whether you need a few hundred parts or millions, we can efficiently scale production to meet your needs. Our advanced equipment ensures that all parts are produced with precision and consistency, no matter the production volume.
Q3: How does Ronningen ensure the quality of molded parts?
We follow ISO 9001:2015 certified processes and use advanced inspection tools such as CMMs, vision cameras, and leak testers to ensure that every part meets your exact specifications. Our quality control team monitors every stage of production to ensure that all parts meet the required performance and aesthetic standards.
Q4: What types of materials does Ronningen work with for plastic injection molding?
Ronningen works with a variety of materials, including polypropylene, ABS, polycarbonate, and high-performance thermoplastics. Our team assists you in selecting the best material based on your part’s functional requirements, durability, and environmental conditions. We also offer custom coloration to match your design specifications.
Q5: Does Ronningen provide prototype injection molding services?
Yes, Ronningen specializes in prototype injection molding. Our rapid prototyping services allow you to test your designs, materials, and functionality before committing to full-scale production. This helps reduce risks and ensures that the final product meets all of your specifications and performance requirements.