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

rotocasting-Wymore-Rotational moulding refers to a plastic production practice that produces hollow stress-free products. The technique relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing methods because no pressure is required. It also has few contenders when it comes down to the creation of sizable hollow items which are durable and inexpensive.There is a variety of product lines that are developed by this process including big water tanks, automobile products, complex designed medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to type 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 Wymore NE 68466, 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 rotational moulding 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 Molding-Wymore-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 Wymore 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 Rotomoulding Method Components

This moulding process has been used since earlier times for creatingvseverl product lines. Egyptians as an example, utilized roto-molding systems in the producing of ceramics. The Swiss were also making use of this rotation method to make hollow chocolate eggs. Some plastic items in the USA were created utilizing this technique some time between 1940 and 1950. Considering that it was viewed to be a fairly slow method, the approach has however taken long to become popular

1. Mold readying.
A fixed measure of polymer in grain form is packed into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color tone needed for the final 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 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 to temperatures between 500-700F. The mould with the powdered polymer is then locked and inserted into the oven.

2. The heat and fusion process.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done slowly, about 20 revolutions per sixty seconds. Something that is vital at this moment is the period of time the mold will spend within the oven. If it overstays, the component will lose value and durability, generating a weak item. If it is taken out from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mould cooling down.
When the component has sufficiently spent the right amount 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 component cools, it shrinks a little for ease of extraction from the mould. This is another measure that depends a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the product.

4. The unloading or de-molding step.
As soon as the material within te mold has cooled successfully, the molder taking care of the operation can then remove the finished product from the mold. The process is repeated from the beginning, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Wymore NE 68466 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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