Why Choose Our Plastic Leak Testing Services?
- Reliable Results
- Comprehensive Testing Methods
- Industry Expertise
Leak Testing, Ultrasonic Welding & Quality Assurance for Plastic Parts
At Ronningen Research & Development, we provide comprehensive testing and inspection services to ensure the highest quality and performance of your plastic components. Our services include leak testing, quality assurance, and ultrasonic welding, each critical to maintaining the integrity and reliability of your parts. Whether you are producing high-performance medical devices, automotive parts, or consumer electronics, we offer precise testing and quality checks to ensure that your components meet the required specifications. Our leak testing services ensure airtight seals, while our ultrasonic welding creates strong, durable bonds without the need for adhesives. With over 50 years of experience, we bring precision, expertise, and the latest technology to guarantee your parts are ready for any application.
Why Choose Our Testing & Inspection Services
Accurate leak detection for plastic components
Non-destructive ultrasonic welding for durability
Thorough quality checks throughout production
High-precision testing for critical applications
Fast, reliable inspection for large-scale production
In-process monitoring for continuous quality control
Call Us Today to Schedule a Free Consultation
How We Ensure Component Quality Through Testing & Inspection
We utilize a range of advanced testing and inspection techniques to provide comprehensive quality assurance throughout your production process. From leak testing to ultrasonic welding, our services are designed to identify issues before they impact your production or end-user experience. Each component is rigorously tested for leaks, defects, and overall performance, ensuring the final product meets all functional and aesthetic requirements.
Leak Testing:
We use state-of-the-art leak testing methods such as pressure decay and mass spectrometry to detect even the smallest leaks in plastic components. This ensures your parts are airtight and function as intended in critical applications, such as medical devices and automotive systems.
Quality Assurance:
Our quality assurance process includes visual inspection, dimensional checks, and performance testing. We adhere to strict standards and utilize advanced measurement equipment to ensure that every part meets the design specifications.
Ultrasonic Welding:
We use ultrasonic welding to create strong, clean bonds between plastic parts without adhesives. This method is ideal for joining materials where traditional methods, like heat staking or mechanical fastening, are not suitable.
Dimensional Verification:
We perform precise dimensional verification on all components, ensuring they meet your tolerances and specifications. This is critical for industries that require parts to fit seamlessly into assemblies or equipment.
Protect Your Products with Ronningen’s Testing & Inspection Services
Ensure the quality, reliability, and functionality of your molded plastic components with Ronningen Research & Development’s testing and inspection services. Our leak testing, quality assurance, and ultrasonic welding capabilities are designed to guarantee the integrity of your parts, whether you’re producing prototypes or scaling for mass production. Contact us today to discuss how we can enhance your manufacturing process and ensure top-tier quality in every component.
Frequently Asked Questions About Leak Testing, Quality Assurance & Ultrasonic Welding
At Ronningen Research & Development, we frequently receive inquiries about our testing and inspection services. Below are the answers to the most commonly asked questions about leak testing, quality assurance, and ultrasonic welding. These answers are designed to provide clarity on our processes, capabilities, and how we ensure your plastic components meet the highest standards of quality and reliability.
1. What is leak testing, and why is it important?
Leak testing is a critical process to identify any air or fluid leakage in plastic components. It ensures that your parts meet safety and functionality standards, especially for applications in medical devices, automotive, and aerospace industries. We use advanced techniques such as pressure decay and mass spectrometry for precise detection.
2. How does ultrasonic welding work?
Ultrasonic welding uses high-frequency sound waves to join plastic components. It creates a strong bond between parts without the need for adhesives or fasteners, providing cleaner joints and faster production times. This method is ideal for high-precision applications like medical device assembly.
3. What types of quality assurance checks do you perform?
Our quality assurance process includes visual inspection, dimensional verification, functional testing, and stress testing. We ensure that each component meets your specific design requirements, and all products are tested for durability, consistency, and compliance with industry standards.
4. Can you handle both small and large production runs?
Yes, we provide testing and inspection services for both small batch and large-scale production runs. Our systems are designed to scale with your production needs, ensuring consistent quality across all volumes.
5. How do you ensure accuracy in your testing services?
We use the latest equipment and techniques to ensure the highest level of accuracy in all of our testing and inspection services. Our technicians are trained to handle advanced measurement tools, and our processes are rigorously documented to maintain the highest standards of quality control.
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.
