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

rotomolding-Prue-Rotational molding refers to a plastic manufacturing method that creates hollow stress-free items. The method uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have various forms, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is needed. It also has few contenders when it comes to the production of large size hollow items which are durable and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile materials, intricate shaped medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Prue OK 74060, 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 rotomolding 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 Molding-Prue-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 Oklahoma 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 Prue Oklahoma 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 molding system has been used since ancient times for creatingvseverl products. Egyptians as an example, worked with roto-molding systems in the making of ceramics. The Swiss were also making use of this rotation style to create hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. Because it was looked at to be a fairly slow technique, the process has however taken long to catch on

1. Mold prep work.
A fixed measure of polymer in particle form is filled into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel material. The colour chosen for the finished goods 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 type of plastic manufacturing.

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

2. The heating up and fusion step.
Once within the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The turning is done slowly, about 20 revolutions per min. Something that is essential at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose stability and durability, producing a weak product. If it is extracted from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finalized product.

3. Mould cooling down.
When the product has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it reduces a little for ease of removal from the mould. This is an additional measure that depends upon a lot on the ideal timing, since quick cooling reduces the material too quick, causing bending of the product.

4. The unloading or de-moulding phase.
Once the product within te mould has cooled successfully, the person managing the procedure can then extract the completed product from the mold. The function is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Prue OK 74060 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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