Plastic Injection Molding & Manufacturing Solutions in Worcester, MA
Ronningen proudly offers high-quality plastic injection molding and comprehensive manufacturing services to businesses in Worcester, Massachusetts. With over 50 years of experience, we specialize in producing precision-molded plastic components for industries such as medical devices, aerospace, automotive, and consumer electronics. Our state-of-the-art facility uses advanced injection molding technology, allowing us to handle projects of all sizes, from small prototype runs to large-scale production runs.
In addition to plastic injection molding, we provide a full range of secondary services including over molding, insert molding, ultrasonic welding, and electroplating. These services help streamline your production process, reduce lead times, and ensure that each part meets your functional, aesthetic, and performance requirements. Ronningen is committed to delivering cost-effective, reliable solutions for businesses in Worcester, ensuring the highest quality results.
Complete Plastic Manufacturing Solutions for Worcester Industries
Ronningen offers a comprehensive suite of plastic manufacturing services designed to meet the unique needs of businesses in Worcester, MA. We specialize in plastic injection molding, over molding, and insert molding, providing high-quality, precision-molded parts for a variety of applications. Whether you’re working on a small batch of prototypes or scaling up to full production, our team ensures that every part is produced with the utmost precision and quality.
We also offer a range of secondary services, including machining, electroplating, pad printing, part marking, and packaging, all completed in-house. By handling all aspects of production under one roof, we reduce lead times, eliminate third-party suppliers, and help you bring your product to market faster. Ronningen is committed to providing flexible, cost-effective solutions to businesses in Worcester.
Precision Molding and Quality Control for Worcester, MA
Ronningen combines precision plastic injection molding technology with advanced engineering to produce high-quality parts for businesses in Worcester. Our high-tonnage machines and expert team allow us to create parts with tight tolerances and intricate designs. We offer specialized services such as ultrasonic welding, structural foam molding, and spin welding, ensuring that your parts are both strong and lightweight, meeting the highest standards of durability.
In addition to molding, we provide in-house machining, leak testing, and packaging services to ensure that every part is fully functional and ready for use. Our integrated approach to manufacturing streamlines the production process, saving time and reducing costs while maintaining the highest levels of quality and performance. Ronningen is here to help you meet your manufacturing goals in Worcester, MA.
Expert Plastic Injection Molding Services in Worcester, MA
Ronningen is the preferred choice for Worcester, MA manufacturers due to our comprehensive approach to plastic injection molding and manufacturing. We provide not only precision molding but also a wide range of additional services such as over molding, insert molding, ultrasonic welding, and machining. Our team works closely with you to understand your needs, ensuring that each part is produced to your exact specifications, from concept to completion.
Our in-house capabilities include electroplating, pad printing, part marking, and packaging, allowing us to deliver fully finished parts ready for immediate use. By offering all of these services in-house, we reduce production times, lower costs, and help simplify the manufacturing process. Ronningen’s team is dedicated to delivering high-quality parts and ensuring that each project meets your goals for performance, quality, and timeline.
Fast and Reliable Plastic Manufacturing Solutions for Worcester, MA
Ronningen’s Worcester facility is equipped to meet the needs of businesses requiring fast, reliable, and high-quality plastic injection molding services. Whether you’re working on a small prototype run or large-scale production, we have the flexibility and capacity to handle all your needs. Our team is dedicated to delivering precise, high-quality parts on time, ensuring that your production schedules are met.
In addition to injection molding, we offer secondary operations such as machining, leak testing, part marking, and packaging. These services are completed in-house to streamline production and ensure your parts are delivered on time and meet your exact specifications. Ronningen’s reliable service and integrated manufacturing approach save you time and money while providing the highest quality results.
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 Worcester, MA
At Ronningen, we understand that selecting the right manufacturing partner is crucial for your project’s success. To help you make an informed decision, we’ve answered some of the most common questions businesses in Worcester have about our plastic injection molding services and capabilities. Our goal is to provide clarity and support to help you achieve the best results for your projects.
Q1: What plastic injection molding services does Ronningen offer in Worcester?
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 services such as electroplating, machining, pad printing, part marking, and packaging, all completed in-house to streamline your production process and reduce lead times.
Q2: Can Ronningen handle both small prototypes and high-volume production?
Yes, Ronningen is fully equipped to handle both small-batch prototypes and large-scale production runs. Whether you need a few hundred parts for testing or millions of parts for full-scale production, we can deliver high-quality results quickly and efficiently. Our flexible systems ensure that we can meet the specific needs of your project, no matter the size.
Q3: How does Ronningen ensure the quality of molded parts?
Ronningen follows ISO 9001:2015 quality standards and uses advanced inspection systems such as vision cameras, CMMs, and leak testers to ensure that every part meets your exact specifications. Our team conducts rigorous quality control checks throughout the production process to maintain high levels of precision and consistency.
Q4: What materials does Ronningen use for plastic injection molding?
Ronningen works with a wide variety of materials, including polypropylene, ABS, polycarbonate, and high-performance thermoplastics. We help you choose the best material based on your part’s functional requirements, durability, and environmental conditions. We also offer custom coloration to match your specific design and aesthetic needs.
Q5: Does Ronningen offer prototype injection molding services?
Yes, Ronningen specializes in prototype injection molding. Our team works closely with you to test designs, materials, and performance before moving to full-scale production. Our prototyping services help reduce risks and ensure that the final product meets all of your requirements before committing to large production runs.
