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

rotomoulding-Ainsworth-Rotational moulding pertains to a plastic production practice that creates hollow stress-free products. The method relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have different shapes, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing methods because no pressure is required. It also has few rivals when it comes down to the production of sizable hollow products which are durable and inexpensive.There is a variety of product lines that are created by this process including large water tanks, automobile materials, complex shaped medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in terms of style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Ainsworth NE 69210, 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

Plastic Manufacturing-Ainsworth-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 Ainsworth 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 Roto-Molding Method in Detail

This molding technique has been used since earlier times for creatingvseverl product lines. Egyptians for example, applied roto-molding systems in the manufacturing of ceramics. The Swiss were also utilizing this rotation style to make hollow chocolate eggs. Some plastic items in the USA were created utilizing this method some time between 1940 and 1950. Due to the fact that it was considered to be a rather slow system, the process has however taken long to catch on

1. Mold prep work.
A predetermined quantity of polymer in particle form is loaded into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color tone chosen for the end item 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 manufacturing.

Preheating of the oven starts, and it may 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 installed within the oven.

2. The heating and fusion step.
Once within the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly, about 20 spins per minute. Something that is important at this point is the period of time the mould will spend inside the oven. If it stays to long, the component will lose stability and durability, generating a faulty item. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which generates bubbles in the finalized item.

3. Mould cooling.
When the material has completely spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mold. This is yet another step that relies a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the material.

4. The unloading or de-moulding step.
When the material inside te mould has cooled effectively, the molder taking care of the procedure can then take out the finalized item from the mold. The procedure is repeated from the beginning, giving a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Ainsworth NE 69210 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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