A facility manager at a small municipal water utility is looking at a 15,000-gallon replacement tank. The old steel tank has rusted through in three places, and the contractor quotes include welded seams that will require annual inspection. A rotomolding supplier offers a single-piece polyethy...

Why Rotational Molding Outperforms Other Processes for Industrial Parts Rotational molding, often called rotomolding, is a manufacturing process that uses heat and biaxial rotation to produce hollow, seamless plastic parts. Unlike injection molding or blow molding, this method creates ...

When a customer asks us to produce a 5,000-liter water tank or a double-walled fuel tank for off-road equipment, the rotational molding process is usually the first solution we evaluate. Rotational molding, also called rotomolding, is a high-temperature, low-pressure method for forming hollow ...

If you are specifying a large fuel tank, a chemical storage vessel, or a rugged float for marine equipment, "rotomolded plastic" is likely to be one of the first process options on your list. The term refers to plastic parts produced by rotational molding — a high-temperature, low-pressure pro...

Every mold shop has seen the same scenario: a CAD model that looks flawless on screen, but the first rotomolding trial produces warped flat panels, thin corners, or a part that refuses to release from the mold. The problem is usually not the machine or the operator. It is the part geometry. Ro...

If you are evaluating a manufacturing process for a large hollow plastic part, rotational molding deserves a serious look. The process offers genuine advantages: low-cost tooling, excellent design freedom, and uniform wall thickness even in complex geometries. It also brings real limitations: ...