This white paper delves into the dynamic journey of manufacturing rotationally molded polyethylene tanks over the past four decades. Unlike tanks crafted from traditional materials such as mild steel, stainless steel, and fiberglass, the realm of rotationally molded polyethylene tanks is a relatively youthful domain.

Exploring the origins of ASTM wall thickness calculations, we uncover their pivotal role in shaping the landscape of manufacturing rotationally molded polyethylene tanks today.

If you’re intrigued by the advancements in molding technologies that have revolutionized the production of consistently high-quality parts, we invite you to delve deeper into the evolution of manufacturing rotationally molded tanks by downloading our white paper for a comprehensive exploration.

If you are looking for quality, low tooling costs, high tensile strength, uniform wall thickness, and a single, seamless one-piece construction in a tank or other product, then a rotationally molded part is your best solution.

What is Rotational Molding?

Rotational molding is a three-stage, no-pressure, plastic molding process. During the heating stage, the mold slowly rotates in two planes (bi-axial rotation). Heat transfer causes the plastic charge inside the mold to melt and uniformly coat the interior of the mold. During the second stage, the mold moves to the cooling station, where it is cooled by air and/or water spray. In the final load/unload stage…To read more download our white paper to learn more about Rotational Molding.

About 35 years ago, Peabody Engineering did a study in cooperation with California State University Long Beach Engineering Structures Lab to design a viable seismic restraint system for our polyethylene tanks.

Based on that study, we determined that the cable and post systems that were being used as an industry standard for seismic restraint of polyethylene tanks were an ineffective and unsafe design. We decided that a new design should be developed that would safely restrain plastic tanks without the potential for damaging them. Peabody does offer a cable system for our tanks if you have budget constraints, but we strongly recommend you consider one of our three other superior designs outlined below based upon the risks associated with the cable systems noted above.

Download this white paper to serve as a reference for our Seismic Restraint Systems for Polyethylene Tanks.

With more than 40 years in the plastic tank business, you would be hard pressed to find an application we haven’t seen before. When it comes to building polyethylene tanks for custom applications, there are always unique design considerations. Our whitepaper includes important factors when configuring and specifying a special application storage tank.

Download this white paper to serve as a reference for our Special Application Tanks.

Chemical storage tanks for industrial, agricultural, high-purity and municipal applications are available in a very wide variety of sizes and styles. They are also available in a variety of different materials of construction. This paper will discuss the benefits of “Plastic Chemical Storage and Process Tanks”.