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

roto-molding-Dermott-Rotational molding refers to a plastic manufacturing solution that produces hollow stress-free products. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have varying designs, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing methods that no pressure is involved. It also has few rivals when it comes down to the production of large hollow products which are long lasting and inexpensive.There is a wide variety of product lines that are developed by this process including big water tanks, automobile materials, complex designed medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to 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 Dermott AR 71638, 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 rotomoulding 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-Dermott-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 Dermott 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 Method Components

This moulding process has been used since early times for creatingvseverl product lines. Egyptians for example, used rotocasting procedures in the making of ceramics. The Swiss were also working with this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this technique some time between 1940 and 1950. The procedure has however taken long to catch on because it was looked at as being a rather slow-moving process

1. Mould readying.
A fixed amount of polymer in grain form is loaded into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The colour chosen for the end 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 design of plastic assembly.

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

2. The heating up and fusion phase.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done gradually, about 20 revolutions per min. The main thing that is vital at this moment is the amount of time the mold will spend within the oven. If it overstays, the material will lose stability and strength, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which develops bubbles in the finalized product line.

3. Mould cooling.
When the component has completely spent the enough 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 reduces somewhat for ease of extraction from the mould. This is yet another measure that depends a lot on the ideal timing, since quick cooling shrinks the material too rapidly, causing warping of the item.

4. The offloading or de-moulding step.
As soon as the component within te mold has cooled properly, the molder taking care of the procedure can then remove the finished product from the mold. The function is repeated from the beginning, providing a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Dermott AR 71638 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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