Top 7 Injection Molding Companies in Wisconsin

Wisconsin has long been known as a hub of manufacturing excellence, and this extends into the realm of plastic injection molding. With a variety of skilled manufacturers specializing in custom molding solutions, companies in Wisconsin offer top-notch service, technology, and expertise for businesses looking to create high-quality plastic parts. Whether you’re in the automotive, medical, or consumer goods industries, partnering with the right plastic injection molding company can make a significant impact on your production processes.

In this article, we’ll take a deep dive into the top 7 injection molding companies in Wisconsin, focusing on their capabilities, areas of expertise, and unique qualities that make them stand out. For businesses seeking reliable injection molding manufacturers, this guide provides valuable insights to help you make an informed decision.

What Is Injection Molding?

Before diving into the top companies, it’s essential to understand the process and importance of injection molding in manufacturing. Injection molding is a method used for producing parts by injecting molten plastic material into a mold, where it cools and solidifies into the desired shape. This process is widely used to produce a large variety of parts for different industries, including automotive components, medical devices, packaging, and household products.

The ability to produce large quantities of precise, complex parts at a low cost per unit makes injection molding an attractive option for companies across many sectors.

Key Factors When Choosing an Injection Molding Partner

Finding the right plastic injection molding company requires attention to several key factors:

• Experience and Expertise: Consider companies that have been in the business for a long time and offer expertise in your industry.
• Technology and Equipment: Companies using advanced injection molding machines and processes will likely provide higher-quality products with faster turnaround times.
• Quality Control: Ensure the company has a robust quality management system in place, such as ISO certification.
• Material Capabilities: Different plastics and resins serve specific purposes, so it’s important to choose a company that offers the materials you need for your product.
• Scalability: Can the company meet your production needs, both for small prototype runs and full-scale production?
• Customer Service: A company’s ability to communicate and collaborate effectively is crucial for a long-term partnership.

Now, let’s explore the top injection molding companies in Wisconsin.

1. Plastic Components, Inc.

Overview

Plastic Components, Inc. (PCI), located in Germantown, Wisconsin, has been a pioneer in automated plastic injection molding. The company focuses on high-volume production, offering fully automated and high-efficiency molding solutions that help keep costs low without sacrificing quality.

Capabilities and Specialties

PCI is best known for its lights-out manufacturing, which enables them to produce parts 24/7 without the need for manual intervention. This allows for faster production times and high-quality output. PCI also emphasizes environmentally friendly practices, reducing waste through efficient energy management and recycling programs.

Industries Served

• Automotive
• Consumer Goods
• Industrial Components
• Medical Devices

Why Choose PCI?

For businesses looking for cost-efficient, high-volume production, Plastic Components, Inc. stands out. Their focus on automation ensures consistent quality and timely delivery of products.

2. MGS Mfg. Group

Overview

MGS Mfg. Group, headquartered in Germantown, is one of the largest plastic injection molding companies in Wisconsin, known for its innovative solutions and extensive capabilities. They provide a full suite of services, including mold design, injection molding, and assembly.

Capabilities and Specialties

MGS uses a wide range of technologies, including multi-shot molding, overmolding, and micro-molding. Their facilities are equipped to handle complex projects with precision, offering both small and large-scale production capabilities. The company is also committed to research and development, consistently pushing the boundaries of what’s possible with injection molding technology.

Industries Served

• Medical and Healthcare
• Automotive
• Packaging
• Consumer Electronics

Why Choose MGS?

If your project involves complex, multi-material parts, MGS is an ideal partner. Their technical expertise and advanced machinery make them a leader in handling challenging injection molding projects.

3. R & B Plastics, Inc.

Overview

R & B Plastics, Inc. is a family-owned company located in Shawano, Wisconsin, with over 60 years of experience in the injection molding industry. Their commitment to customer satisfaction and flexibility in manufacturing make them a trusted partner for businesses of all sizes.

Capabilities and Specialties

R & B Plastics specializes in custom injection molding services, offering everything from product development and prototyping to large-scale production. The company prides itself on its personalized service, working closely with clients to deliver products tailored to their exact specifications. Their flexible production capabilities allow them to handle projects of any size, from small custom orders to large production runs.

Industries Served

• Automotive
• Consumer Products
• Industrial Equipment
• Packaging

Why Choose R & B Plastics?

For businesses that require a hands-on, collaborative approach to product development, R & B Plastics offers the expertise and flexibility needed to bring your ideas to life.

4. Evco Plastics

Overview

With facilities in DeForest, Wisconsin, Evco Plastics is one of the top plastic injection molding companies in the region, recognized for its global reach and innovative production methods. They focus on delivering precision parts for various industries, leveraging cutting-edge technology and a highly skilled workforce.

Capabilities and Specialties

Evco is a leader in large-part molding, specializing in structural foam molding and multi-shot injection molding. The company’s state-of-the-art machinery allows them to produce large, complex parts with tight tolerances. They also emphasize lean manufacturing principles, minimizing waste and ensuring that customers receive their products on time and on budget.

Industries Served

• Agriculture
• Automotive
• Medical Devices
• Heavy Equipment

Why Choose Evco Plastics?

If your project involves large, complex parts, Evco Plastics has the equipment and expertise to handle your needs efficiently. Their experience in large-part production makes them a top choice for manufacturers in heavy industries.

5. PolyFab Corporation

Overview

Located in Sheboygan, Wisconsin, PolyFab Corporation has been serving clients since 1979, providing high-quality plastic injection molding services with a focus on engineering excellence and customer satisfaction. The company offers a full range of services, from mold design to production and assembly.

Capabilities and Specialties

PolyFab specializes in precision injection molding and offers a wide range of secondary services, including pad printing, ultrasonic welding, and assembly. They focus on tight-tolerance parts, ensuring that every component meets the stringent quality requirements of their customers.

Industries Served

• Medical and Healthcare
• Consumer Electronics
• Automotive
• Industrial Applications

Why Choose PolyFab Corporation?

PolyFab is ideal for businesses that need high-precision parts and value a collaborative, customer-first approach. Their ability to manage projects from concept to completion makes them a reliable partner.

6. ProPlastix International, Inc.

Overview

ProPlastix International, Inc., based in Green Bay, Wisconsin, has earned a reputation for its commitment to innovation and quality. Specializing in custom plastic injection molding, ProPlastix works with clients to develop tailored solutions for their manufacturing needs.

Capabilities and Specialties

ProPlastix offers a wide range of injection molding services, including insert molding, overmolding, and high-volume production. The company also provides design consultation, helping clients optimize their product designs for the injection molding process, leading to better product performance and cost savings.

Industries Served

• Automotive
• Consumer Goods
• Industrial Products
• Electronics

Why Choose ProPlastix International?

For businesses looking for a partner that can offer customized solutions and design assistance, ProPlastix is an excellent choice. Their focus on customer satisfaction and tailored solutions makes them stand out in the industry.

7. Riteway Plastics, Inc.

Overview

Located in Richfield, Wisconsin, Riteway Plastics, Inc. has been providing plastic injection molding services for over three decades. Known for their dedication to quality, Riteway offers a range of services tailored to meet the needs of clients across multiple industries.

Capabilities and Specialties

Riteway specializes in precision injection molding and high-volume production, with a focus on quick turnaround times and high-quality standards. The company also offers secondary services such as product assembly and packaging, making them a full-service provider.

Industries Served

• Consumer Products
• Industrial Applications
• Medical Devices
• Automotive

Why Choose Riteway Plastics?

For those seeking a company with a long history of quality and reliable service, Riteway Plastics delivers. Their ability to offer both precision and high-volume production makes them a trusted partner for businesses looking to scale their operations.

Conclusion: Choosing the Right Injection Molding Partner

Selecting the right injection molding company in Wisconsin depends on your specific needs, including the complexity of your project, the materials required, and your production volume. The companies mentioned above represent the best in the state, each with its own set of specialties, technologies, and capabilities. Whether you need high-volume production, precision molding, overmolding, or custom solutions, Wisconsin’s top injection molding companies can meet your needs and help drive your product development