Internationally Recognized Rotational Molding Leader.
25+ years of full service rotomolding experience providing design, mold fabrication, secondary trim & assembly, drop shipping and more!Learn More
Granger's commitment to quality and excellence can be witnessed through its commitment to high quality proprietary products. While other molders chose to mold simple proprietary producs such as childrens toys, laundry carts or playground equipment, Granger focuses on the large, complex and potetntially life-saving products, such as the Granger ISS Tornado Shelter.
One of the most critical steps of a rotational molding project is to ensure that the design and incorporated features are achievable via the rotomolding process. It's important to work with an design engineer who is familiar with the process in effort to ensure that the production process operates as seamlessly as possible, while producing high-quality, solutions effective products.
All rotationally molded products require a mold for the part to be produced. Granger Plastics Company is a complete, one-stop Rotational Molding Company that can offer turn-key rotomoulded solutions including getting your concept designed for the rotational molding process and can even oversee having your molds for the rotational molding process produced!
Granger Plastics Company was founded on providing high-quality custom rotational molding services to manufacturers, OEMs and industry leaders looking for high quality plastic molded products and components. Granger Plastics is one of the only full-service custom rotomolding facilities providing a complete array of services including rotational molding design, mold fabrication, secondary trim & assembly, packaging and even drop shipping to your customers.
Often described as a black art, the rotational molding process is a culmination of science, chemistry, some black art and lots of experience. A multi-step plastics molding process commonly utilizing powder polymer materials, rotomolding is best defined as a manufacturing process used to create hollow, one-piece plastic products. While the synonyms rotomolding, rotational molding and rotocasting are virtually interchangeable, the process does not use pressure unlike most polymer molding procedures. Rotomolding uses the bi-axial rotation of the arm, which has a mold mounted to the end of the arm, to distribute the materials uniformly through the mold. The mold is placed in a PLC controlled oven where the molds are heated as the arm continues to rotate. Once the cook cycle is complete, the molds will move to the cooling cycle.
Custom Rotomoulding is the process of designing and producing a product or component for a very specific requirement or project. This process entails critical detail to each step, ensuring that the final resulting molded pieces perform and function for whatever intended purpose. Custom Rotational Molding comprises majority of the rotomolding industry, however, very few rotomolding companies specialize in Custom Rotational Molding like Granger Plastics. Since the inception of the company in 1994, Granger's primary focus has been on high-quality rotationally molded solutions for OEMs and manufacturers alike. Learn more about the custom rotomoulding process by reading and clicking the link below!
Granger Industries Inc., is comprised of Granger Plastics Company, Granger Aerospace and ForeverSafe Products, along with the Granger ISS Tornado Shelter and Sandsaver, the natural solution to beach erosion.