High-End Expert Plastic Injection Molding in Indianapolis, IN
Speed meets precision in the heart of the Racing Capital of the World. For businesses throughout the Circle City, settle for nothing less than professional-grade manufacturing. We serve Indianapolis, IN from our Michigan facility, providing the high-end technical oversight your project demands. Whether you are operating near the high-tech corridors of Fishers or the industrial hubs of Speedway, our Michigan-based operations serve clients throughout Indianapolis, IN with uncompromising quality.
Precision is the engine of your success. In a city that values performance and engineering excellence, your plastic components must be flawless. We bring elite Midwest manufacturing directly to your doorstep, ensuring your parts survive the heavy humidity of Indiana summers and the rigors of industrial use. Serving Indianapolis, IN with expertise from our Michigan headquarters means you get national-reach capability with a personal, professional touch.
Professional Benefits: High-End Results for Indy Innovators
Why settle for average when you can have expert engineering. Our scientific approach to manufacturing ensures every cycle is perfect. By leveraging our specialized facility, you gain several strategic advantages for your supply chain:
Exceptional Repeatability: Our automated systems at our Michigan facility ensure every part is identical to the first.
Climate-Resilient Materials: We select resins that won’t warp or degrade in the volatile Indiana climate.
Faster Speed-to-Market: Use our rapid plastic prototyping service to validate your design before full production.
Reduced Overhead: We offer low-cost tooling for plastic parts to keep your startup costs manageable.
Total Component Solutions: From molding to plastic injection assembly services, we handle the entire process under one roof.
A Story of Indianapolis Innovation
A medical device startup located near the IUPUI campus was struggling with a local vendor who couldn’t meet the strict tolerances required for a new surgical tool. They were facing months of delays and mounting costs due to part failures. They needed a partner who understood the high-stakes world of precision injection molding for medical parts.
Serving this Indianapolis, IN client from our Michigan facility, we performed a full diagnostic on their mold design. Our engineers identified a cooling issue that was causing microscopic warping. We re-engineered the tool, moved production to our Michigan-based operations, and delivered a perfect batch of components within three weeks. The client hit their clinical trial deadline and secured their next round of funding, proving that distance is no barrier to excellence.
We offer finishing services including leak testing, custom coloration, pad printing, part marking, and packaging, all performed with strict quality controls. This integrated approach ensures Indianapolis manufacturers receive durable, compliant, and visually superior products. Ronningen is a trusted manufacturing partner in Indianapolis’s industry landscape.
Expert Performance Comparison
Ronningen Research serves Indianapolis from our Michigan-based operations, providing a level of precision and reliability that typical regional shops can’t match. Our focus on scientific and technical molding ensures parts meet exact specifications, while standard local shops often handle only basic part fabrication. We back our tooling with a lifetime maintenance guarantee, compared to the limited cycle life offered elsewhere. Quality control is automated and sensor-monitored, rather than relying on manual visual checks, and our national freight network ensures timely delivery, unlike local shops that depend solely on regional couriers.
Our finishing services include leak testing, part marking, pad printing, silk-screening, shielding, ultrasonic welding, painting, spin welding, structural foam molding, taping, trimming, and custom packaging. By consolidating these services, Ronningen helps Indianapolis manufacturers reduce lead times, lower costs, and maintain consistent quality, supporting growth and innovation.
Secure Your High-End Production Today
Don’t leave your manufacturing to chance. Indianapolis is a city built on the pursuit of the best, and your product deserves a partner that shares that vision. By choosing to serve your Plastic Injection Molding in Indianapolis, IN needs through our Michigan-based operations, you are choosing precision, reliability, and Midwest integrity.
Contact our professional team today. Let us help you navigate the complexities of manufacturing and deliver the results your business deserves.
Contact Information: Phone: 269-649-0520 Email: ronningen@ronrnd.com Address: 6700 E Y Z Ave, Vicksburg, MI 49097, United States
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.
Professional Frequently Asked Questions
How does serving Indianapolis, IN from Michigan work for logistics.
We have a highly optimized logistics network that treats the Midwest as a single neighborhood. Parts are molded at our Michigan facility and shipped via rapid freight directly to your Indianapolis location. Most clients find our total turnaround time is faster than local shops that are backlogged with manual orders.
Can you match my brand colors perfectly.
Yes. We offer professional custom coloration and can match any Pantone or provided sample. This ensures your final product looks high-end and aligns perfectly with your brand identity on the retail shelf or in a medical setting.
What are the risks of using a non-expert molding service.
Non-expert shops often ignore the science of polymers. This leads to parts that crack under pressure, yellow in the sun, or fail to fit during assembly. In a professional market like Indianapolis, IN, a part failure can lead to expensive recalls and damage to your company reputation.
Do you offer support for small-volume production runs.
Absolutely. We take pride in helping Indianapolis startups grow. We offer flexible production volumes, allowing you to prove your concept with a small run before scaling up to hundreds of thousands of units.
How do I start the quoting process.
Simply provide your 3D CAD files and your estimated annual volume. Our engineering team at the Michigan headquarters will perform a professional review and get a detailed quote back to you quickly. We make it easy to move from a digital design to a physical product.
