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Custom Roto Mold Tanks

Rotational Molding

roto mold tankCustom roto mold tanks, better known as rotational molding, are a durable and economical solution for commercial, agricultural and industrial applications. With unlimited possibilities for your custom tank needs, rotational molding provides a seamless, one-piece tank. This innovative process produces a wide array of texture and surface finishes.

Roto molding is not only cost effective, but creates corrosion and chemical resistant tanks. One advantage of rotational molding is the ability for tanks to be customized for your specific job or project. Speak with one of our team members for help creating the specific tank you need.

See our Specialty & Custom Tanks (pdf) for more details.

This product may be eligible for financing; click here to start your financing application!

Questions about custom rotational molding tanks? We can help! Call our team at 1-863-261-8388 or fill out our quote request form to discuss your requirements.

*Ask us about roto mold tank financing options!

Rotational Molded Tanks

Roto molding’s unique fabrication is one of the best solutions for custom tanks and other products. The thermoplastic manufacturing technique is ideal for water and chemical storage, diesel fuel storage, industrial storage, agriculture water storage, and more. Lightweight and easy to transport, roto molded tanks are rust and corrosion resistant, and long-lasting. Roto mold gives you the freedom to design the size and shape of the tank you need. The possibilities are endless!

Industrial Tanks


  • Vertical Tanks
  • VT with Containment
  • Cone Tanks- Open Cone Tanks
  • Open Tanks- Rectangular Tanks
Drawing of cone bottom tanks with and without stands

Marine & Boat Tanks


  • Bow Shaped Water Tanks
  • Rectangular Water Tanks
  • Rounded Corner Open End Compartments
  • Square Corner Open Ended Compartments
  • Wedged Water Tanks
  • Battery Boxes
Custom Roto molded bow shaped tank

Marine Battery Boxes


  • Battery Box GRP-31-DE
  • Double Battery Box End X End GRP-31-DE
  • Double Batter Box Side X Side GRP-31-DS
  • Optima Battery Box GRP-34-SO
Custom molded battery box

Agricultural Tanks


  • Vertical Tanks
  • VT with Containment
  • Cone Tanks
  • Open Cone Tanks
  • Open Tanks
  • Rectangular Tanks
Drawings of open top cone bottom tanks next to stands

Refuse Containers


Red refuse container

Recreational Vehicle Tanks


  • Bottom Dump Waste Tanks
  • Bow Shaped Water Tanks
  • End Dump Holding Tanks
  • End Dump Holding Tanks with Rails
  • L-Shaped End Dump Holding Tanks
  • L-Shaped Side Dump Holding Tanks
  • L-Shaped Water Tanks
  • Recessed End Dump Holding Tanks
  • Recessed End Dump Holding Tanks with Rails
  • Recessed Side Dump Holding Tanks
  • Recessed Side Dump Holding Tanks with Rails
  • Side Dump Holding Tanks
  • Side Dump Holding Tanks with Rails
  • Water Tanks
  • Water Tanks with Rails
  • Wedge Shaped Water Tank
  • Fender Skirts
Drawing of a custom molded dump holding tank

Recreational Vehicle Fender Skirts


Drawing of a custom molded vehicle fender skirts

Water Storage Tanks


Drawing of the various different custom molded water tanks One Clarion provides

Water Heater Pans


  • Vertical Tanks
  • VT with Containment
  • Cone Tanks- Open Cone Tanks
  • Open Tanks- Rectangular Tanks
Water heater with custom molded water heater pans

Give us a call at 1-863-261-8388 or fill out our quote request form to discuss your roto mold project requirements.

What is Roto Molding?

The rotational molding process starts with heating plastic resin until it melts inside a hollow, closed mold. The mold is then placed in a cast where temperatures range from 260°C – 370°C. We rotate the mold, and then evenly coat with the polyethylene resin. Due to the centrifugal force created during  rotation, a smooth, watertight product is created producing walls of even thickness. Once the plastic cools and hardens, it can be removed from the mold. Because roto molding doesn’t involve pressure like many other manufacturing processes, it is faster and more cost effective. This strong tank can withstand impact and vibration during transportation, and lasts longer than other water tanks manufactured using the injection method.

Infographic of how the rotomolding process works

Need pricing for custom rotational molded tanks? Give our sales team a call at 1-863-261-8388 or fill out our quote request form to discuss your roto molding project requirements.

*Ask us about roto mold tank financing options!

Our Roto Mold Process

We are dedicated to providing a collaborative and efficient process for your custom roto-molding project. We have a multi-step process giving careful attention to detail and precision.

  1. We work closely with you to identify your specific tank needs; then create a detailed design prototype.
  2. Once the design is approved, we build a stainless steel mold to meet all of the requirements outlined during the design process.
  3. Our mold must meets our high quality standards before we schedule your first tank run one of our state-of-the-art rotational molding machines.
  4. After your tank fabrication is complete, we inspect the tank for any defects or imperfections. Strict quality control measures ensure your tank meets your exact specifications, as well as adhering to our rigorous standards. The result is a high-quality, durable, custom-designed tank that meets your specific project needs. Call us today for more information about our custom roto-molding solutions.

Custom Roto Molding Tank Applications

chemical tanksAn ideal choice for water containment, water storage tanks and other liquid storage, roto molding tanks meet requirements for both water recovery and treatment. Designed to be sturdy and leak proof, they are a great solution for applications such as farms, construction, industry, cities, and other applications. Rotational molded tanks are customized for a wide range of specific purposes like portable barriers and cones, carts and carriers, corner protection, fuel cells, sporting goods, and enclosures.

Other common uses are:

Rainwater Collection Environmental Services
Agriculture and Farming Construction Water Storage
Recreation and Containment Composting
Fuel Tanks Fuel Storage
Storage Emergency Water
Chemical Processing Spill Containment
Petroleum and Oil Automotive industry
Marine and Boating Food and Beverage Industry
Defense and Military Playground Equipment
Medical and Healthcare Mining and Minerals and More…

Let us help you find just the right process for your perfect tank. Talk with one of our team members to find the best choice for particular tank or product needs.

If you have any questions about custom roto molding a call at 1-863-261-8388 or fill out our quote request form.