Plastic Storage Tanks
Why Rotational Molding?
There are many materials that can be used for plastic storage tanks, but rotationally molded polyethylene tanks from Ingredient Masters offer substantial advantages for companies who want a top-performing vessel at a competitive cost.
Ingredient Masters’ plastic storage tanks are rotationally molded from virgin high density polyethylene. Rotational molding gives plastic storage tanks a unique combination of strength, light weight and reasonable cost. The seamless rotomold construction also makes them easy to clean and leak-proof.
Rotational molding (“roto-molding”) is a proven process for manufacturing a broad variety of hollow products from polyethylene and other plastics. It is exceptionally well-suited to high quality plastic storage tanks.
The rotational molding process is a high-temperature, low-pressure process that uses heat and angular rotation on dual axes to produce hollow, single-piece products such as plastic storage tanks.
A heated mold is filled with a charge of polyethylene material, and slowly turned. This causes the softened material to disperse and adhere to the sides of the mold. To maintain uniform thickness across the part, the mold continues to rotate throughout the heating phase to prevent the material from sagging or deforming.
Rotationally molded plastic storage tanks are made carefully—but not quickly, although the process does offer several other important benefits. Rotational molds are significantly less costly than other mold types. Also, material use is very efficient—waste is minimal and any excess polyethylene can generally be recycled, making it both “green” and economically favorable.