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

rotocasting-Ozark-Rotational molding refers to a plastic manufacturing procedure that creates hollow stress-free items. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying designs, colors and sizes. This method is also called 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 methods in that no pressure is called for. It also has few rivals when it pertains to the manufacture of large hollow products which are long lasting and inexpensive.There is a wide variety of products that are produced by this process including big water tanks, automobile materials, intricate shaped medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style 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 Ozark AR 72949, 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-Ozark-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 Ozark 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 Process in Detail

This molding process has been used since ancient times for creatingvseverl products. Egyptians as an example, applied rotational molding techniques in the producing of ceramics. The Swiss were also working with this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this method some time between 1940 and 1950. The system has however taken very long to catch on because it was looked at as being a somewhat slow-moving process

1. Mould preparation.
A fixed volume of polymer in powder form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The color needed for the final goods 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 style of plastic production.

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 locked and positioned within the oven.

2. The heating up and fusion process.
Once inside the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done gradually, about 20 rotations per min. The main thing that is crucial at this moment is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and durability, producing a weak item. If it is removed from the oven too early, the polymer will not have flowed correctly, which develops bubbles in the completed product.

3. Mold cooling down.
When the product has sufficiently spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mold. This is yet another step that depends a lot on the ideal timing, since quick cooling decreases the material too fast, causing bending of the material.

4. The un-loading or de-moulding phase.
Once the component within te mold has cooled properly, the person managing the process can then extract the finished product from the mould. The function is repeated from the start, providing a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Ozark AR 72949 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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