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

rotational moulding-Tryon-Rotational molding refers to a plastic manufacturing solution that generates hollow stress-free products. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have many different forms, sizes and colors. This technique 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 required. It also has few contenders when it comes to the manufacture of large size hollow products which are durable and inexpensive.There is a wide range of products that are created by this process including big water tanks, automobile items, intricate designed medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of type and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Tryon NE 69167, 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 Molding-Tryon-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 Tryon 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 Process Components

This molding procedure has been used since earlier times for creatingvseverl items. Egyptians for example, applied rotational molding solutions in the manufacturing of ceramics. The Swiss were also making use of this rotation format to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at to be a relatively slow process

1. Mould readying.
A fixed amount of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel substance. The coloration desired for the finished goods is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic manufacturing.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then secured and placed within the oven.

2. The heat and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done slowly and gradually, about 20 rotations per minute. One thing that is crucial at this moment is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and durability, producing a poor item. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finalized product.

3. Mold cooling down.
When the component has completely spent the right amount of time in the oven, it is then removed for cooling. This can 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 extraction from the mould. This is one more procedure that relies a lot on the correct timing, since rapid cooling decreases the material too quickly, causing bending of the product.

4. The unloading or de-molding step.
As soon as the material inside te mould has cooled correctly, the molder handling the procedure can then extract the finished product from the mould. The procedure is repeated from the beginning, making a series of identical items.

For more information on the different rotational rotomolding options offered for the Tryon NE 69167 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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