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

rotational molding-Smithville-Rotational molding pertains to a plastic production practice that creates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different forms, colors and sizes. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing processes in that no pressure is required. It also has few rivals when it comes down to the creation of sizable hollow items which are resilient and inexpensive.There is a variety of product lines that are developed by this process including big water tanks, automobile products, intricate shaped medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Smithville OK 74957, 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 rotocasting 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 Manufacturing-Smithville-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 Smithville 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 Rotomoulding Method Components

This molding operation has been used since earlier times for creatingvseverl product lines. Egyptians for example, applied rotational molding methods in the of ceramics. The Swiss were also working with this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were developed utilizing this technique some time between 1940 and 1950. Due to the fact that it was considered to be a rather slow-moving method, the procedure has however taken long to catch on

1. Mould readying.
A predetermined amount of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The colour preferred for the final product 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 production.

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

2. The heating and fusion step.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 spins per minute. Something that is essential at this point is the period of time the mold will spend within the oven. If it overstays, the product will lose value and durability, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the completed item.

3. Mould cooling down.
When the material has sufficiently spent the correct amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mold. This is yet another procedure that depends upon a lot on the correct timing, since quick cooling reduces the material too quick, causing warping of the product.

4. The offloading or de-moulding step.
When the component within te mould has cooled adequately, the molder taking care of the process can then extract the finished item from the mold. The technique is repeated from the beginning, supplying a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Smithville OK 74957 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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