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

rotational moulding-Atkinson-Rotational moulding pertains to a plastic manufacturing solution that generates hollow stress-free items. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various shapes, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing techniques in that no pressure is involved. It also has few competitors when it comes to the production of large hollow products which are durable and inexpensive.There is a wide variety of products that are generated by this process including big water tanks, automobile items, intricate molded medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to type 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 Atkinson NE 68713, 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

Custom Molded-Atkinson-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 Nebraska 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 Atkinson Nebraska 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 Components

This molding method has been used since early times for creatingvseverl product lines. Egyptians for instance, used rotocasting methods in the creating of ceramics. The Swiss were also utilizing this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. The process has however taken long to take affect because it was thought of to be a rather slow process

1. Mould preparation.
A fixed amount of polymer in powder form is loaded into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel substance. The color wanted for the final goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic engineering.

Pre-heating of the oven starts, 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 into the oven.

2. The heat and fusion step.
Once inside the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 spins per sixty seconds. The main thing that is critical at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, creating a poor product. If it is taken out from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the completed item.

3. Mold cooling down.
When the product has completely 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 creates a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mold. This is another step that depends upon a lot on the correct timing, since rapid cooling reduces the material too quick, causing warping of the material.

4. The un-loading or de-moulding step.
As soon as the material within te mold has cooled effectively, the person handling the operation can then remove the finished item from the mould. The function is repeated from the start, making a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Atkinson NE 68713 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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