What is Rotational molding?

Rotational molding is a process allowing the creation of large or small seamless hollow plastic parts. The process of biaxial rotation had been around since the late 1800's early 1900's. The first written description of using biaxial rotation and heat was to produce round, hollow artillery shells printed in 1865. But until the developement of low density polyethelyene in 1942 by the British, it was just a curiosity in the then relatively new plastic industry.

The process begins when a mold mounted on the machine arm is charged with a pre-measured amount of powdered or liquid resin into the mold cavity. The mold is then clamped shut and begins rotating on its vertical and horizontal axes. The rotation continues as the arm conveys into a large oven heating the entire surface area of the mold. Once the mold surface and resin has reached fusion temperature, the resin begins to melt creating a puddle in the lowest portion of the mold. As the mold continues rotating, each area of the mold passes through the puddle of molten resin again and again pulling a thin layer of plastic material onto the inside surface of the cavity. Once the cooking cycle has been completed the arm then moves into a cooling chamber. The mold is either cooled by air, water or a combination of the two until the part can solidify and retain the cavity shape. The mold is then opened and the part is removed and the process is repeated over and over.

Commitment to Quality

Our commitment to QUALITY, EFFICIENCY, and CUSTOMER SERVICE allows us to deliver SUPERIOR PRODUCTS and COMPETITIVE PRICING. Our diverse customer base encompasses a wide variety of industries and international locations, providing Atlanta Rotomolding with both the experience and global reach to handle your next project.

We Support Our Troops

We honor and support the brave men and women of our Armed Forces and their families for the sacrifices and hardships they have endured defending our freedom.