Plastic Injection Molding & Manufacturing Solutions in Nashua, NH
Innovation in the Gate City moves fast. From the high-tech firms in the Millyard to the growing medical device companies near the Everett Turnpike, local businesses are constantly pushing the boundaries of what’s possible. However, many Nashua-based innovators face a common hurdle: finding Precision Plastic Injection Molding & Manufacturing in Nashua, NH, that can handle complex geometries and tight tolerances without the astronomical overhead of boutique Northeast shops or the quality risks of offshore sourcing.
Whether you are developing a new consumer product or a critical industrial component, the stakes are high. Inconsistent part quality or delayed shipments can stall your market entry and impact your bottom line. At Ronningen Research, we provide a sophisticated domestic alternative. Serving Nashua, NH, from our Michigan-based operations, we deliver the technical excellence of a world-class manufacturing hub directly to your doorstep in the Granite State.
Navigating Manufacturing Challenges in the Merrimack Valley
Nashua businesses operate in a unique environment. With New Hampshire’s significant temperature swings—ranging from humid, hot summers to freezing, dry winters—plastic parts must be engineered with specific thermal stability in mind. Furthermore, local companies often struggle with:
Prototyping Bottlenecks: Local options often lack the speed required for iterative R&D.
Scale Scarcity: Finding a partner that handles both small bridge-tooling runs and high-volume production is rare.
Logistical Fragility: Reliance on international shipping leaves your supply chain vulnerable to port strikes and customs delays.
By serving Nashua, NH, from our specialized Michigan facility, Ronningen Research eliminates these localized pain points. We leverage Michigan’s deep automotive and industrial infrastructure to offer superior precision and faster turnaround times for our New Hampshire clients.
Our Expert Manufacturing Process: From Michigan to Nashua
Service Benefits: Outcomes That Drive Your Business
Choosing the right partner for your Precision Plastic Injection Molding & Manufacturing in Nashua, NH, results in tangible business outcomes. We don’t just deliver parts; we provide peace of mind.
Reduced Time-to-Market: Our rapid plastic prototyping services allow your team to move from concept to physical part in as little as 10 business days.
Superior Part Consistency: Our automated process ensures that part number 1 is identical to part number 1,000,000, reducing your scrap rate and assembly time.
Domestic Supply Chain Security: By choosing a partner with Michigan-based operations, you insulate your business from the volatility of overseas manufacturing and geopolitical risks.
Scalability: We bridge the gap between small startup runs and global-scale production, growing alongside your Nashua business.
Trust and Guarantees: The Ronningen Research Commitment
When you choose Ronningen Research to serve your Nashua location, you are choosing a partner that stands behind every cycle of the press. We maintain a professional, transparent relationship with our clients, backed by industry-standard certifications and a commitment to American-made quality.
Our Guarantee to You:
Tooling Lifetime Warranty: As long as we are molding your parts, we maintain and repair your tool at our Michigan headquarters at no additional cost to you.
Material Integrity: We provide full traceability for all resins, ensuring you get exactly what you specified—no regrind or substitute materials without your express consent.
Dimensional Accuracy: If a part doesn’t meet the agreed-upon tolerances in your blueprint, we fix it. Period.
Confidentiality: Your intellectual property is secured within our domestic facility, protected by NDAs and robust internal security protocols.
Our Active Certifications


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.
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 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.
