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Rotational Molding is a plastic process that yields very durable and long lasting parts. The key to this lies in Polyethylene, the material most commonly used in roto-molding, which is able to handle a higher level of stress than many other materials. The stress free process and long lasting material creates parts that can be used for decades or even generations depending on the application.

Features

Rotational Molding

Rotational molding utilizes a mold to manufacture parts like other plastics processes but unlike most other plastic manufacturing no pressure is used to move the material through that mold. Instead, Heat is used to melt and fuse plastic resin in a closed mold rotating on two axes. This creates parts that are more durable than other plastic processes.

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Four Stages of Rotational Molding

Rotational molding is a stress free process that creates plastic parts that are both extremely durable and long lasting. This multi-step process involves a mold rotating on two axes that is filled with material, usually polyethylene, which is heated, then cooled.

Rotational molding is a four-stage process.

Stage One: Loading the plastic resin into the mold.

Stage Two: Moving the mold into the heating chamber of the oven while rotating on two axes at a low speed.

Stage Three: Moving the mold into the cooling chamber and cooling by air or water spray or a combination of both, while still rotating.

Stage Four: Unloading the finished part from the mold.

A variety of materials are available for rotational molding though the most widely used is polyethylene.

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About Rotational Molding

Rotational Molding, a modern plastics manufacturing process produces hollow seamless parts with extremely durable qualities.

Rotational Molding Design Experts

From Aerospace, Shipping Containers, Tornado Shelters and so much more, Rotational Molding Design Expertise is being extremely humble.

Rotomolded Products

See examples of some of quality craftsmanship in the Rotational Molding industry along with a number of industry leading innovations.

Rotomolded Tooling

Rotational Molds are one of the first critical steps towards achieving your Rotational Molding goals. Don’t miss out on the Rotational Mold Tooling Tips!

Custom Rotational Molding

Granger Plastics Company, American custom rotational molding leader, is available for complete manufacturing services including rotomolding, design, mold making, manufacturing, assembly, order fulfillment and warehousing.

Granger ISS Shelter

The Granger ISS is the most durable, longest lasting, lowest maintenance storm shelter designed to easily and effectively protect your family from danger. Many safety features standard and includes lifetime warranty against cracking, leaking, rotting or material deterioration. See why the ISS is America’s leading tornado shelter.

Granger Aerospace

Rotationally molded Aerospace products stand up to the stresses of shipping while saving money by requiring dramatically less maintenance than traditional ULD containers. Superior durability provides the lowest total cost of ownership and unique design extends the life of the unit. See how Granger is revolutionizing this industry! Air Cargo Container offerings of LD 2’s, LD 3’s and LD 8’s.

ForeverSafe Products

ForeverSafe theft deterrent cemetery products add extra assurance that your loved ones memorial will be safe from desecration. Available in a variety of colors and styles including rotationally molded cemetery flower vases, replacement vases, staked vases, vase/canister sets and water tight urns from durable polyethylene construction. Keep their memory safe, with ForeverSafe.

Material Handling Products

Granger Plastics Company offers a number of material handling solutions for a wide variety of applications. Rotationally molded polyethylene provides extreme durability and long lifespan. Some products include laundry or recycling carts, Intermediate Bulk Containers, storage containers and full service custom rotational molding for specialized designs.

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Aenean consectetur ipsum ante, vel egestas enim tincidunt quis. Pellentesque vitae congue neque, vel mattis ante.

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Job Role, Company

Aenean consectetur ipsum ante, vel egestas enim tincidunt quis. Pellentesque vitae congue neque, vel mattis ante.

Lorem Ipsum

Job Role, Company

Aenean consectetur ipsum ante, vel egestas enim tincidunt quis. Pellentesque vitae congue neque, vel mattis ante.

Lorem Ipsum

Job Role, Company

Granger Industries Granger Plastics Rotocasting Beach Erosion Soltions
Granger ISS Tornado shelter Underground Tornado Shelters In-Ground Safe Rooms Storm Shelters
Replacement Bronze Vases Cremation Urns ForeverSafe™ Cemetery Vases Burial Urns & Flower Vases
IBC Containers Laundry & Recycling Carts Air Craft Containers Bulk Storage Containers

About Granger Industries Inc.

Started in 1994 by John Grimes, a 40 year pioneer integral to the history of Rotational Molding. His father, John Grimes Sr. was known as one of the “founding fathers” of the Rotational Molding industry in the United States. Since 1994, Granger has grown & expanded several times and now continues growth under current President, Jim Cravens, a world renown engineer known for his innovation, knowledge and abilities.