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

rotomoulding-Wynne-Rotational molding refers to a plastic manufacturing method that generates hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have several forms, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing processes because no pressure is involved. It also has few competitors when it pertains to the creation of large size hollow items which are long-lasting and inexpensive.There is a variety of products that are created by this process including big water tanks, automobile materials, sophisticated designed medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in terms of design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Wynne AR 72396, 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 Manufacturing-Wynne-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 Arkansas 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 Wynne Arkansas 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 Procedure in Detail

This molding process has been used since early times for creatingvseverl product lines. Egyptians for example, utilized roto-molding procedures in the producing of ceramics. The Swiss were also applying this rotation method to generate hollow chocolate eggs. Some plastic items in the USA were made utilizing this technique some time between 1940 and 1950. Since it was viewed to be a very slow-moving approach, the process has however taken long to catch on

1. Mold readying.
A fixed volume of polymer in grain form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The colour preferred for the final product is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

Pre-heating 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 put within the oven.

2. The heating and fusion phase.
Once placed into the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done gradually, about 20 revolutions per minute. The main thing that is essential at this moment is the period of time the mold will spend within the oven. If it overstays, the material will lose stability and strength, making a poor item. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which generates bubbles in the finished product.

3. Mould cooling down.
When the material has sufficiently spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks somewhat for ease of removal from the mould. This is yet another step that depends a lot on the correct timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The un-loading or de-moulding phase.
As soon as the component within te mould has cooled adequately, the person taking care of the operation can then take out the finalized product from the mould. The technique is repeated from the beginning, supplying a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Wynne AR 72396 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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