Why Rotomolded Tanks Are Used To Make Water Tanks?


Rotational molding is suitable for hollow objects like water tanks. This is because of the process’s several advantages, including low prices, corrosion resistance, and great strength. With this idea in mind, let us investigate the benefits of Rotomolded Tanks. First and foremost, we will look at what the roto-molding procedure entails.

A description of the rotational molding technique

Simply said, rotational molding is a method of producing a long-lasting plastic product. This is accomplished by ‘heating’ raw polyethylene powders in a hollow mold that spins at a low speed around two axes. The raw polyethylene component is heated throughout the rotating time, lasting 45 minutes to one hour. This converts what was formerly a powder into a material made of plastic that adheres to the tank’s walls.

Once a water tank has been created, it must cool before removal. The ultimate result is a hollow, practically seam-free water tank with uniform wall thickness.

6 Advantages of Rotational Moulding

Rotomolded Tanks may be built in a variety of ways. We feel, however, that rotational molding produces the finest outcome. This is because rotational molding offers the following advantages:

Low production costs

When compared to both injection & blow molding, roto molding has lower tooling costs. Furthermore, because the production process is simple, lead time for production is greatly decreased compared to alternative building methods. Because of this, the initial cost of producing a water tank utilizing rotational molding is minimal. 

Rust-resistant and corrosion-free tanks

Although some water tanks are susceptible to soil erosion, polypropylene cannot and will never rust. Polyethylene water tanks provide a significant benefit over metal & stainless-steel water containers, which are susceptible to localized corrosion. This also implies that Rotomolded Tanks manufactured using rotational molding will prevent you from money on future repairs and replacements.

Tank toughness

Although polyethylene is lightweight, it is also quite resilient. Because the substance can flex, its integrity as a tank may be maintained longer than concrete or fiberglass tanks. Furthermore, the tank has no weak places due to its one-piece design. 

Design adaptability

Polyethylene ranks as one of the world’s easiest thermoplastics to deal with. As a consequence, it is simple to create personalized water tanks. Whatever your design requirements are, the experts can produce a custom solution suitable for you.


Finally, because of their light weight, polyethylene reservoirs are very convenient to transport. This means you may move and rearrange them as necessary. This is a significant improvement over steel and concrete water tanks, which are extremely difficult to carry.

No Sharp Edges

The tanks are made as a single piece in a rotomolding technique, which eliminates the need for partial fabrication and merging of multiple pieces to make one. This merging region usually stays sharp when a few manufacturers postpone completing it since it demands a lot of effort.


As a result, several water tank manufacturers have switched to Rotomolded Tanks as a manufacturing process. The roto-molding process of creating water tanks offers several advantages for both makers & consumers. If you have any additional concerns concerning rotational molding or want particular guidance about your case, you can contact the experts.




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