Rotational Molding Products | Popular Manufacturing Method


Rotational molding products are becoming a popular manufacturing method for inventors, entrepreneurs, and business owners looking for the best manufacturing processes for their product lines. 

We have put together a guide to help you to understand and identify the types of products that are made with rotational molds.

Rotomolding, also known as rotating plastic molding, is a process that uses heat to melt the plastic resin and mold it inside a closed mold.

It is a different production process than other plastic molding processes that use pressure.

R&R Technologies LLC is one of the leading manufacturers of rotomolded polymers. Their process involves four steps.

  1. The mold is filled with the correct amount of resin
  2. The unfinished resin can be heated and then fused.
  3. Allow cooling time
  4. Rotomolded plastic is removed from the mold

The rotomolded product is now ready for shipping to the client.

What Are the Plastic Materials Used in Making Roto-Molded Plastic Products?

The production of these parts and other products requires a wide range of materials.

rotational moulding plastic resinNylon



Polyvinyl chloride (PVC) and Thermoplastics

It is important to know that the most common polyethylenes used in rotational molding products manufacturing are LLDPE (HHPE), LDPE (recycled/regrind), and cross-linked.

Rotational Molding Products Offer Efficient Solutions for Complex Parts

They have many features, such as double walls, molded-in inserts, and undercuts.

You can make any size product you like with rotational molding. It is possible to produce anything from a ping-pong ball to a fuel tank capable of holding over 20,000 gallons.

Rotational molding products may vary significantly in terms of complexity, wall thickness, or length.

There are no restrictions on the number of custom designs or works.

What Are the Type of Products Made From Rotomolded Plastic

A wide range of plastic products can be made from rotational molds. Each product requires different tooling methods, though the cast is the most common.

Cast tooling can usually be completed in six to eight weeks and offers a variety of surface finishes and textures.

Fabricated sheet metal tooling is used for larger pieces and those that don’t require a complicated design.

These two specifications are just a few of the many options for rotational molding products.

10 Examples of Plastic Products Made With Rotational Molding

1. Bins and Containers

Plastic bins and bulk containers are made of rotomolded polyethylene in tons and tons of sizes and colors. They are sturdy enough to be used for shipping or storing items efficiently and quickly.

They are used mainly in the material handling industry and in food processing.

2. Auto Parts

Plastic manufacturing is used for many automobiles, including interior design elements such as cup holders and mechanical parts that run the car.

3. Road barriers and cones

You likely drive by many road cones and barriers each day. However, you probably didn’t know that they are made with the rotomolding method.

4. Various Toys

Rotomolding can be described as the process of making plastic toys, decorative items, and other trinkets that we find in our homes, such as pink flamingos or ping-pong balls.

This process is even used to manufacture pool tables.

5. Cribs

This process is used to make full baby cribs.

6. Your Kayaks

Are you a nature lover who loves nothing more than spending a day on the water?

Rotomolding is a significant component of many industries, including the watersports industry. It includes kayaking, surfing, canoeing, and kayaking.

Nearly all plastic floating docks are made using this process.

7. Other equipment for sports

Rotomolding is used to produce a wide range of ground-based watersport equipment.

  • Playground equipment
  • Helmets
  • Dumbells
  • Golf carts

It’s easy to see that it is adaptable.

8. Storage Tanks for Agricultural, Industrial, and Commercial

Rotomolded plastic is used regularly in storage tanks of any size in industrial, commercial, and agricultural applications.

Because of this adaptability, storage tanks can be as small as five gallons or larger than 20,000 gallons.

9. Stock Mannequins

If you have ever wondered where department store mannequins are made, rotational molding is your answer.

This process allows you to make all your hollowed-out plastic display figurines.

10. Various Industrial Parts

Although it is not as exciting as the mannequins, however, rotational molding can also be used to produce a variety of industrial parts like:

  • Housing
  • Covers
  • Tote bins
  • Water softening tanks

There are many more.

Is Custom Rotomolded Plastic the Right Solution for Your Company or Project?

Custom rotational molded plastics might not be the best solution for all manufacturing situations.

In general, rotomolded plastic products are the best choice for:

Individuals and businesses who know the kind of mold they need and want a company to help them create it.

Individuals and businesses currently have a mold but need to find a company to manufacture products using the mold.

Rotomolded plastic is used for large-scale plastic manufacturing because it can produce identical wall thicknesses with no thinning in extremities.

It is also highly cost-effective, and it comes in one piece.

People Also Ask

How is rotational Moulding unique?

Rotational molding is a very unique and popular plastic design manufacturing technology. It doesn’t require any pressure, unlike other processes.

The Rotomolded products can be described as seamless, single-piece parts made of plastics.

What products are made with rotational molding?

Environmental products include litter bins. Automotive products include toolboxes, truck mudguards, and diesel fuel tanks. Kayaks.

How do you benefit from rotational molding

Low-cost tooling: Rotomold tools can be made with low operating pressures from low-cost metals such as aluminum. Consistent thickness of walls: The constant rotation in the mold evenly coats the walls during heating and cooling.

What does rotational Moulding do for the environment?

Rotational shaping has less environmental impact since all raw materials can be recycled in-house. In addition, consultation at an early stage of a project saves effort.

How is rotational molding different from injection molding?

The rotational molding produces a more even application. The resulting product is more durable, flexible, and can offer a greater degree of material flexibility.

What are the different types of rotational Moulding?

There are several types of rotational mold equipment. These include clamshell machines, vertical wheel, rock and roll machines, open flame machines, and turret and shuttle machines.

Are there any disadvantages to rotational molding?

One disadvantage to rotational molding is the lack of material options. All materials used in rotational molding have to be modified from granules into fine powder. Resin is usually the one used.

Have any questions about our rotational molding services? Then fill out the form down below or call us today at 812-526-2655