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

rotocasting-Coalville-Rotational moulding refers to a plastic production solution that creates hollow stress-free items. The technique utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of shapes, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing techniques in that no pressure is involved. It also has few competitors when it involves the production of sizable hollow items which are long lasting and inexpensive.There is a variety of products that are produced by this process including large water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of type 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 Coalville UT 84017, 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

Custom Molded-Coalville-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 Coalville 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 Rotomoulding Process in Detail

This moulding technique has been used since early times for creatingvseverl products. Egyptians as an example, employed rotomoulding techniques in the making of ceramics. The Swiss were also applying this rotation method to create hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at as being a somewhat slow process

1. Mold prep work.
A predetermined measure of polymer in powder form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel substance. The colour needed for the finished item is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic assembly.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then secured and inserted within the oven.

2. The heating up and fusion step.
Once within the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 spins per min. One thing that is important at this point is the amount of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, creating a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the completed product line.

3. Mold cooling down.
When the component has completely spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks a little for ease of extraction from the mold. This is one more step that depends upon a lot on the ideal timing, since quick cooling reduces the material too quickly, causing warping of the material.

4. The discharging or de-molding phase.
Once the component inside te mold has cooled properly, the molder managing the operation can then take out the finished product from the mold. The function is repeated from the beginning, giving a series of similar products.

For more information on the different rotational rotomolding options offered for the Coalville UT 84017 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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