Looking for rotational molding alternatives for Utah? Want affordable custom plastic molding that is cost effective for Duchesne area? Then give us a call at our toll free number 866-971-7861 or request a quote today!

rotational moulding-Duchesne-Rotational molding pertains to a plastic production procedure that creates hollow stress-free product lines. The technique uses high temperatures and bi axial rotation to come up with seamless, one piece items that have varying designs, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing processes because no pressure is called for. It also has few contenders when it involves the manufacture of large size hollow items which are long lasting and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile items, intricate shaped medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Duchesne UT 84021, it is a cheaper way of making plastics. This is because apart from the fact that no pressure is required, the cost of mold preparation is low.
  • A wide array of design options.
    There is no limit to the kind of design one may want to create. The rotational molding process therefore allows for the manufacturing of products that have complex shapes for different purposes.
  • Size.
    The process provides room for the manufacturing of products of any size, large or small. As mentioned earlier, it has few competitors when it comes to the making of large tanks at low costs.
  • Low risk.
    Due to the low costs of creating a mould, the process allows for test runs before one can decide whether to do mass production. It therefore minimizes the risk of losing a lot of investment.
  • Durable products.
    The process allows for even coating of the mould with the heated polymer, giving the product a wall with uniform thickness. It also gives the option of double coating for increased durability. Sometimes metal inserts are placed inside the mould to further strengthen the product.
  • Environmentally friendly.
    There is no waste that could have a negative impact on the environment because the products that cannot be used are reground and reused as polymer.

Examples of Products Made by Rotational Molding

Plastic Molding-Duchesne-Rotocasting is a very versatile process, making it possible to create a variety of products for different industries.

  • Agricultural industry– From cattle feeders, water troughs, spray tanks etc.
  • Automotive industry– Filler tubes, dash boards, arm rests, sun visors, air conditioner duct work etc.
  • Furniture– We have plastic cabinets, chairs and tables made from this form of moulding.

There are numerous Utah plastic products also that have been made for the marine industry, lighting, waste storage and transportation, kayaks etc.

Few Disadvantages – There are nominal disadvantages that have been associated with rotocasting. For instance:

  • – The process is relatively slow when compared to injection moulding.
  • – There is a limitation when it comes to the type of raw material you can use. Only poly based and nylon polymers can be used.
  • – The process comes with an increased cost because the polymer has to be ground to powder form before use.
    These limitations are often overlooked considering that the process is still relatively cheap and offers more in terms of variety when it comes to the finished range of products.

Remember – There are new developments and discoveries that are being made as the world of plastic manufacturing in Duchesne Utah continuously. For instance, tests are being done to see whether there are other materials that can be used for this process. But so far, rotomoulding offers a good option for the production of a wide range of inexpensive plastic products.

The Rotomolding Process in Detail

This moulding technique has been used since early times for creatingvseverl products. Egyptians for instance, used rotational molding systems in the creating of ceramics. The Swiss were also using this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this approach some time between 1940 and 1950. The procedure has however taken long to catch on because it was thought of to be a very slow process

1. Mold readying.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel substance. The coloring needed for the final item is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then sealed and inserted into the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per min. One thing that is critical at this moment is the amount of time the mould will spend within the oven. If it overstays, the product will lose stability and strength, making a poor product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which creates bubbles in the finished item.

3. Mould cooling down.
When the component has completely spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces somewhat for ease of extraction from the mould. This is an additional procedure that depends upon a lot on the right timing, since quick cooling shrinks the material too fast, causing bending of the product.

4. The offloading or de-molding phase.
As soon as the component inside te mould has cooled correctly, the molder taking care of the operation can then remove the finished product from the mould. The process is repeated from the beginning, providing a number of exact products.

For more information on the different rotational rotomolding options offered for the Duchesne UT 84021 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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