About Granger Plastics Rotational Molding
Granger Industries and Granger Plastics Company was originally founded in 1994 by John Grimes, a 40 year pioneer, integral to the history of rotational molding. His father, John Grimes Sr., was one of the "founding fathers" of the rotational molding Industry in the United States. After starting the company with other partners it quickly out grew the original Sharonville location within the first 2 years. In 1996, needing to move for required growth, John and his business partner chose another Cincinnati-Dayton area suburb of Middletown, OH. It was at this time, John started branching Granger Plastics into new opportunities that developed into integral, long term relationships.
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By the fall of 1998 already needing to add to its capacity and size capabilities Granger Plastics made large capital additions in equipment and machinery. It was at that time, John and his associates would require additional expertise for the new found opportunities, so they brought in another partner. The partner was Jim Cravens, a highly pursued associate of Mr. Grimes' past in rotational molding. Jim was brought in during a monumental period of change. As opportunities came from many new directions Granger continued its growth.
Well before 2000, Granger Plastics had become a multi-million dollar, international company, offering rotomolding plastics innovations to a multitude of industries. It began a process of developing new parts, new conversions, new technology and different thought processes regarding rotational molding. Granger Plastics shipped parts all over the world and again, with the aide of its partners, grew throughout the next years, even expanding on to its relatively newly acquired building.
In 2002, John Grimes decided to retire, after nearly 50 years of dedication to the rotational molding industry. Granger Plastics would now be out of the hands of its original founder, and wholly under the guidance and direction of Jim Cravens.
Since 2002, Granger Plastics Company has developed many industry leading innovations in rotational molding and continues to grow under the guidance of Jim. A Mechanical Engineer by education and trade, Jim has over 25 years of experience in metal fabrications. Much of his experience was gained during his tenure of engineering & designing, research, development and manufacturing in the commercial mower industry. He also brings nearly 25 years of rotational molding experience to complement his vast knowledge of metals and metal fabrications. Being a student of the W. Edwards Deming methods, Jim operates a quality and productivity based operation. It is his ability as one of the leading part design engineers in the world that keeps Granger Plastics out in front as one of the leading companies in rotational molding engineering innovations.
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Under his direction Granger Industries has expanded to include Granger Aerospace Products, ForeverSafe Products, and the Granger ISS – America’s leading tornado shelter. Jim holds many patents of his own and continues to develop a broad array of world-class solutions, providing Granger Plastics customers the ability to stay on the fore front of their respective industries.

To learn more, click on any of the links below:
- Granger Industries
- Granger Plastics
- Granger Aerospace Products
- Granger ISS Tornado Shelter
- ForeverSafe Products
![]() The Granger Plastics Company Mission StatementThe Granger Plastics Company is committed to producing the highest quality products, for on time delivery to our customers, both internal and external. We will perpetuate a never-quit attitude along with some aggressive risk taking to allow us to consistently think outside the norm to satisfy the ever-changing needs of our customers and ourselves. We will accept nothing less than the expected requirements of quality and service to always maintain the integrity of The Granger Plastics name. We will always strive for excellence in our quest for World Class Manufacturing. |
Granger Plastics Rotational Molding Gallery
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Granger Plastics Rotomolding Video
Granger Plastics Rotational Molding Information
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