Poly Tanks Manufacturers and Suppliers

IQS Directory provides an extensive list of poly tank manufacturers and suppliers. Utilize our website to review and source poly tank manufactures with our easy-to-use features which allow you to locate poly tank companies that will design, engineer, and manufacture poly tanks for your exact specifications. Our request for quote forms make it easy to connect with leading poly tank manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for poly fuel tanks, poly water tanks, or poly stock tanks.

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ARTICLES AND PRESS RELEASES

  • Protank Ltd: Liquid Handling Products

    Poly Tanks Protank Ltd. is one of North America's largest suppliers of polyethylene plastic tanks and other various tanks. We have over 30 years of experience that has helped us become a well-known and trusted industry leader in supplying, customizing, and fabricating polyethylene plastic tanks. Read more......

  • Polyethylene Tanks and Septic Systems

    For a long time, septic tanks were constructed out of a treated metal composite. The metal was treated to prevent against corrosion and deterioration; this is a very important step in the septic tank construction process, obviously, since sewage contamination of groundwater is something we all want to avoid. While these metal tanks were durable, eventually even the treated metal tanks began to fall by the wayside in favor of plastic tanks. Plastic septic tanks were beneficial because they are lighter than metal tanks, the materials of which they are...

  • The Virtues of Poly Tanks

    Poly tanks are extremely versatile and therefore can be used to house all kinds of liquids from water that's safe for drinking to acids. What makes them such fantastic multipurpose tanks is their construction: they're made from polyethelene plastic powder that, when under extreme heat, becomes liquid. The liquid polyethelene is then poured into a mold so it can cool and take the shape of the mold itself. These tanks are often made into a variety of shapes, from cone bottom poly tanks to round and square tanks. The cooled...

  • Uses for Poly Tanks on the Farm

    Plastic poly tanks are useful for a variety of tasks in industries ranging from rural farm work to food factory production and machine manufacturing. These flexible, plastic tanks have many advantages over traditional rigid tanks or metal tanks, including less weight, easier portability, and lower purchase prices. If you work on a farm, there are many ways that you can use poly tanks around the farm that will make day-to-day tasks much easier. Fertilizer: Poly tanks are ideal for storing and applying liquid fertilizer to crops. Many poly tanks are...

Industry Information

Poly Tanks

Tanks can be fabricated from both metal and plastic. Although both materials have their own set of advantages, poly tanks are lower-maintenance and are more durable than those made of steel, stainless steel, Hastelloy, or titanium. Poly tanks, another term for plastic tanks, have a seamless structure, and are resistant to chemicals, fuel additives, corrosion, and rust. Steel tanks can leak and fracture over time, but poly tanks have a much longer lifespan.

Unlike stainless steel tanks, plastic is much easier to mold and shape. Thus, poly tanks are much easier to install, and can be shaped to fit tank compartments of a certain size and shape. Poly tanks can vary greatly in terms of holding capacity. They can hold as little as 15 gallons to as much as 16,000 gallons. Companies who are searching for inexpensive options for storage can benefit from using poly tanks, as they cost significantly less overall than metal tanks. Poly tanks are also highly resistant to a variety of chemicals and substances, including motor oils, diesel fuels, fuel oils, hydrochloric acid, sulfuric acid, caustic soda, and sodium hypochlorite. Because of this level of versatility, poly tanks are used in a wide range of industries and applications. Examples include tanks in irrigation and fertilization systems in the agriculture and food production industry, and storage of oils and fuels in automotive businesses. Other applications where poly tanks can be found include electroplating, parts washing, industrial manufacturing and processing, and recycling.

Poly tanks can be fabricated from many types of plastic. Some common types of plastic are as follows:

  • Polyethylene (PE). Polyethylene is the most popular plastic resin for fabricating storage tanks. PE is a thermoplastic that is light in weight, resistant to chemicals, and can come in several types. The first type is known as linear high density polyethylene (HDLPE). The word “linear” is used in the term for the purpose of distinguishing it from cross-linked high density polyethylene. Otherwise, the term can be used interchangeably with high density polyethylene (HDPE). HDPE is more rigid than its low-density counterpart, and is known for its superior impact resistance. Tanks made from HDPE are more reliable and are less prone to rupture and leakage of its contents. Linear low density polyethylene (LLDPE) has shorter branching in its molecular structure than low density polyethylene (LDPE), causing LLDPE to have higher tensile strength and higher resistance to rupture and impact. Finally, cross-linked high density polyethylene (XLPE). The polymer chains within XLPE are connected by heat and chemical-generated covalent bonds and subsequently elongated, making the material incredibly rigid, durable, and more chemically resistant than HDPE.
  • Polypropylene (PP). Polypropylene is another highly recommended material due to its light weight, low density, excellent strength, exceptional resistance to heat and moisture, and a melting point of 320º F (160º C). PP is also resistant to chemicals such as magnesium hydroxide, potassium carbonate, photographic solutions, oleic acid, and hydrogen sulfide. Although it has less chemical inertia than polyethylene, it is a much stronger resin.
  • Polyvinyl chloride (PVC). The advantageous properties of PVC include the ability to be mixed with an assortment of additives in order to improve flexibility, conductivity, insulation, and rigidity of the material. The transparency and color can also be adjusted. Despite its beneficial properties, PVC is less commonly used than PP and PE because of how much it can negatively affect human health and the environment. PVC contains toxic elements that can be released into the atmosphere or seep into the ground. Therefore, the potential hazards of PVC is important to consider when deciding on a resin from which to fabricate your poly tank.

Rotational molding, or rotomolding, is one method to manufacture poly tanks. The first step of the process involves filling a mold with the plastic material—which is ground up into powder form—and sealing the mold shut. The mold is supported on a set of arms known as spindles. Once the molds are filled, they are transferred by the molding machine to a heating chamber which melts down the powdered plastic. In the heating chamber, the mold slowly revolves around the spindles’ axes. Once the melted plastic takes the shape of the mold, it is then transferred to a cooling chamber. Within the cooling chamber, cold air and water is applied outside the mold, which helps solidify the molten plastic. Once cooled, the final product can be manually removed from the mold. Rotomolding is highly advantageous to other methods like blow molding and injection molding, due to its ability to create seamless products in one piece.


Poly Tanks
Poly Tanks
Poly Tanks – Assmann Corporation of America
Poly Tanks – Assmann Corporation of America






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