Plastic Injection Molding in Wisconsin – Precision Manufacturing That Delivers
Plastic injection molding in Wisconsin plays a key role in powering the state’s diverse manufacturing economy. Companies across Wisconsin use advanced injection molding technology to produce complex, high-precision plastic components for industries such as medical, automotive, industrial, and electronics. With a focus on speed, quality, and affordability, Wisconsin-based molders deliver results that exceed client expectations. Their ability to support everything from prototype creation to full-scale production ensures reliable, end-to-end support. Businesses trust Wisconsin’s injection molding services for their consistent quality and short lead times, making the state a preferred manufacturing destination in the U.S.
Wisconsin’s plastic injection molding industry is recognized for its technical expertise and robust production capabilities. From small custom orders to large-volume production runs, manufacturers in the state are equipped with advanced machinery, experienced engineers, and strict quality systems. Their ability to mold with various thermoplastics and engineering-grade materials allows for customized solutions across demanding applications. With a strong reputation for innovation, precision, and long-term customer support, Wisconsin continues to be a leader in U.S. plastic injection molding. Businesses nationwide rely on Wisconsin to deliver durable, high-performance parts at scale.
Full-Service Plastic Injection Molding Capabilities in Wisconsin
Plastic injection molding services in Wisconsin cover every stage of production, including part design, mold creation, rapid prototyping, and high-volume manufacturing. Whether launching a new product or scaling up production, Wisconsin molders work closely with clients to meet exact performance and design specifications. Their services are ideal for industries that demand accuracy, repeatability, and compliance with regulatory standards. By offering flexible manufacturing strategies and expert engineering, Wisconsin-based companies provide cost-effective plastic molding solutions with consistent output.
In addition to core services, Wisconsin companies offer advanced molding techniques like overmolding and insert molding, along with precision secondary processes. These include trimming, pad printing, custom coloration, and final assembly, enabling clients to receive finished parts ready for market. Their use of high-performance polymers, automation, and lean manufacturing practices minimizes waste and boosts efficiency. As a result, Wisconsin’s injection molding sector is trusted by top OEMs and startups alike to deliver scalable, reliable, and innovative plastic part production solutions.

Why Choose Us for Plastic Injection Molding in Wisconsin?
Choosing our company for plastic injection molding in Wisconsin means selecting a partner committed to precision, reliability, and results. With decades of hands-on experience and access to the latest technology, we produce injection molded parts that meet the highest standards of quality. From early-stage prototypes to high-volume production, we work side-by-side with clients across medical, industrial, and commercial sectors to ensure their goals are achieved. Our Wisconsin-based facility supports fast lead times, competitive pricing, and detailed engineering, helping you stay ahead in today’s demanding market.
Our team combines technical expertise with a customer-focused mindset. We pride ourselves on clear communication, responsiveness, and transparency throughout every project. With in-house mold making, expert material selection, and thorough quality control, we ensure each component matches your performance expectations. Whether you need complex geometries, tight tolerances, or regulatory compliance, we have the capabilities and commitment to deliver. Our plastic injection molding services in Wisconsin are designed to maximize efficiency and elevate the quality of your products.
Custom Injection Molding
We produce custom plastic parts that meet specific application requirements with accuracy, speed, and flexibility across various industries and materials.
Prototype Plastic Injection Molding
Accelerate your product development with fast and cost-effective prototyping that validates designs and ensures manufacturing readiness.
Overmolding
Our overmolding process merges multiple materials into one part, enhancing grip, shock resistance, and visual appeal in consumer and industrial products.
Injection Molded Parts
From simple to complex geometries, we produce high-quality injection molded parts that meet stringent dimensional and functional specifications.
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.
Premium Plastic Injection Molding Services in Wisconsin
Ronningen Research & Development is a leading provider of high-quality plastic injection molding services throughout Wisconsin. We specialize in industries such as automotive, medical devices, aerospace, and consumer products. Whether you’re located in Milwaukee, Madison, Green Bay, or Appleton, we provide high-precision molded parts with efficient production times. From prototype development to large-scale production, Ronningen ensures your project is completed with reliability, efficiency, and cost-effectiveness. Partner with us for all your molding needs in Wisconsin, and experience top-notch quality and service every time.
Precision Molding in Milwaukee
Offering precise injection molding services in Milwaukee, WI, providing durable parts for the automotive, medical, and aerospace industries with quick turnaround times and high-quality results.
Custom Molding in Madison
Explore custom plastic injection molding solutions in Madison, WI, providing fast production and tailored results for a variety of industries, including consumer electronics and automotive.