Rotational molding, also known as rotomolding, is a versatile plastic manufacturing process that produces durable, hollow parts. The method is favored for creating a wide range of products, from storage tanks to playground equipment and automotive components. The USA is home to some of the most advanced and reputable rotational molding companies in the world. In this article, we will explore the top 10 rotational molding companies in the USA, detailing their expertise, services, and contributions to the industry.
Top 10 Rotational Molding Companies in the USA
1. Granger Plastics Company
Founded in 1994 and headquartered in Middletown, Ohio, Granger Plastics Company is a leading name in the rotational molding industry. Known for its innovative approach and high-quality products, the company serves a variety of sectors, including aerospace, defense, automotive, and consumer goods.
Expertise:
Granger Plastics specializes in custom rotational molding, offering services from concept to production. The company is known for its ability to handle complex projects and produce parts with intricate details. Their state-of-the-art facility is equipped with advanced rotomolding machinery, ensuring precision and consistency in every product.
Services:
The company offers a wide range of services, including product design, mold fabrication, assembly, and finishing. Granger Plastics also provides secondary operations such as foam filling, metal inserts, and custom packaging. Their commitment to quality and customer satisfaction has made them a preferred partner for many industries.
2. Rotational Molding Inc. (RMI)
Rotational Molding Inc., located in Gardena, California, has been a prominent player in the rotational molding industry since its inception in 1977. With over four decades of experience, RMI has established itself as a reliable manufacturer of high-quality plastic products.
Expertise:
RMI specializes in the production of large, durable parts for industries such as agriculture, automotive, and marine. The company is known for its expertise in creating complex, multi-layered parts that require precise engineering and attention to detail.
Services:
RMI offers a full suite of services, including design assistance, prototyping, tooling, production, and assembly. The company also provides secondary operations such as painting, trimming, and custom labeling. RMI’s commitment to innovation and quality has earned them a solid reputation in the industry.
3. Dutchland Plastics
Dutchland Plastics, headquartered in Oostburg, Wisconsin, is a leading rotational molding company with over 50 years of experience. The company is renowned for its ability to produce large, complex parts with a high degree of precision and quality.
Expertise:
Dutchland Plastics specializes in custom rotomolding, serving industries such as outdoor recreation, watercraft, and industrial equipment. The company is known for its innovative approach to product design and its ability to produce parts with intricate details and consistent quality.
Services:
Dutchland Plastics offers a comprehensive range of services, including product design, engineering, mold making, production, and assembly. The company also provides value-added services such as in-mold graphics, custom colors, and post-molding finishing. Dutchland Plastics’ commitment to customer satisfaction and product innovation has made them a leader in the industry.
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4. Centro Incorporated
Centro Incorporated, based in North Liberty, Iowa, is one of the largest rotational molding companies in the USA. Founded in 1970, Centro has built a reputation for delivering high-quality, durable products to a wide range of industries, including agricultural, industrial, and recreational markets.
Expertise:
Centro is known for its advanced rotomolding techniques and its ability to produce large, complex parts with tight tolerances. The company’s expertise in multi-layered and multi-material molding sets them apart in the industry.
Services:
Centro offers a full range of services, including product design, prototyping, tooling, production, and assembly. The company also provides value-added services such as foam filling, welding, and custom finishing. Centro’s commitment to continuous improvement and customer satisfaction has made them a trusted partner for many industries.
5. Sterling Technologies Inc.
Sterling Technologies Inc., located in Lake City, Pennsylvania, is a well-established rotational molding company with a strong focus on quality and customer service. Founded in 1998, Sterling Technologies has grown to become a leading provider of custom rotomolded products.
Expertise:
Sterling Technologies specializes in producing high-quality parts for industries such as agriculture, construction, and outdoor recreation. The company is known for its ability to handle large, complex projects and deliver consistent quality.
Services:
The company offers a wide range of services, including design assistance, mold fabrication, production, and assembly. Sterling Technologies also provides secondary operations such as trimming, drilling, and custom packaging. Their commitment to innovation and customer satisfaction has earned them a strong reputation in the industry.
6. Elkhart Plastics Inc.
Elkhart Plastics Inc., headquartered in South Bend, Indiana, is a leading rotational molding company with a focus on delivering high-quality, innovative products. With over 30 years of experience, Elkhart Plastics has become a trusted partner for a wide range of industries.
Expertise:
Elkhart Plastics specializes in producing large, durable parts for industries such as RV manufacturing, marine, and industrial equipment. The company is known for its expertise in custom rotomolding and its ability to produce parts with complex geometries and tight tolerances.
Services:
The company offers a comprehensive range of services, including product design, mold making, production, and assembly. Elkhart Plastics also provides value-added services such as in-mold labeling, custom colors, and post-molding finishing. Their commitment to quality and innovation has made them a leader in the rotational molding industry.
7. Fibertech Inc.
Fibertech Inc., located in Elberfeld, Indiana, is a leading rotational molding company with a strong emphasis on sustainability and innovation. Founded in 1999, Fibertech has quickly become a recognized name in the industry, known for its high-quality products and environmentally friendly practices.
Expertise:
Fibertech specializes in producing durable, long-lasting parts for industries such as agriculture, waste management, and material handling. The company is known for its expertise in custom rotomolding and its ability to create complex, multi-layered parts with precision.
Services:
The company offers a wide range of services, including design assistance, mold fabrication, production, and assembly. Fibertech also provides value-added services such as custom colors, in-mold graphics, and post-molding finishing. Their commitment to sustainability and innovation sets them apart in the industry.
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8. Lakeland Plastics
Lakeland Plastics, based in Arlington Heights, Illinois, is a leading provider of custom rotational molding services. Founded in 1962, Lakeland Plastics has a long history of delivering high-quality, innovative products to a wide range of industries.
Expertise:
Lakeland Plastics specializes in producing complex, custom parts for industries such as automotive, medical, and industrial equipment. The company is known for its ability to handle large, intricate projects and deliver consistent quality.
Services:
The company offers a full suite of services, including product design, prototyping, mold making, production, and assembly. Lakeland Plastics also provides secondary operations such as trimming, drilling, and custom packaging. Their commitment to customer satisfaction and product innovation has made them a trusted partner for many industries.
9. Norstar Aluminum Molds
Norstar Aluminum Molds, located in Ooltewah, Tennessee, is a leading rotational molding company specializing in the design and production of aluminum molds. Founded in 1988, Norstar has become a recognized name in the industry for its high-quality molds and commitment to customer satisfaction.
Expertise:
Norstar Aluminum Molds specializes in producing molds for a wide range of industries, including automotive, agricultural, and outdoor recreation. The company is known for its expertise in creating complex, multi-part molds that require precision and attention to detail.
Services:
The company offers a wide range of services, including mold design, fabrication, and finishing. Norstar also provides secondary operations such as polishing, engraving, and custom modifications. Their commitment to quality and innovation has made them a leader in the rotational molding industry.
10. Solar Plastics Inc.
Solar Plastics Inc., based in Delano, Minnesota, is a leading rotational molding company with a focus on producing high-quality, durable parts for a wide range of industries. Founded in 1964, Solar Plastics has a long history of delivering innovative, cost-effective solutions to its clients.
Expertise:
Solar Plastics specializes in producing large, complex parts for industries such as agriculture, construction, and industrial equipment. The company is known for its expertise in custom rotomolding and its ability to create parts with intricate geometries and tight tolerances.
Services:
The company offers a comprehensive range of services, including product design, mold making, production, and assembly. Solar Plastics also provides value-added services such as custom colors, in-mold graphics, and post-molding finishing. Their commitment to quality and customer satisfaction has earned them a strong reputation in the industry.
Conclusion
The rotational molding industry in the USA is highly competitive, with many companies offering innovative and high-quality products. The ten companies listed in this article represent the best in the industry, known for their expertise, advanced technology, and commitment to customer satisfaction.
Whether you are looking for custom rotomolded parts, complex multi-layered products, or high-quality aluminum molds, these companies have the skills and experience to meet your needs. Their dedication to innovation and quality ensures that they will continue to lead the way in the rotational molding industry for years to come.
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