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

roto-molding-Enka-Rotational moulding refers to a plastic production method that produces hollow stress-free product lines. The procedure relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have varying forms, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this unique from other plastic manufacturing procedures in that no pressure is called for. It also has few competitors when it comes to the creation of large hollow items which are long lasting and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile items, complex designed medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in terms of design 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 Enka NC 28728, 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

Custom Molded-Enka-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 North Carolina 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 Enka North Carolina 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 molding operation has been used since ancient times for creatingvseverl product lines. Egyptians for example, employed roto-molding solutions in the of ceramics. The Swiss were also employing this rotation design to generate hollow chocolate eggs. Some plastic products in the USA were created using this procedure some time between 1940 and 1950. Because it was looked at to be a relatively slow procedure, the approach has however taken long to catch on

1. Mould preparation.
A predetermined amount of polymer in grain form is loaded into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The colour desired for the final product 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 type 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 placed within the oven.

2. The heating and fusion procedure.
Once inside the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done gradually, about 20 spins per sixty seconds. Something that is vital at this point is the period of time the mold will spend within the oven. If it overstays, the product will lose value and durability, generating a faulty item. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the finished product.

3. Mould cooling down.
When the component has sufficiently spent the enough 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 product cools, it reduces somewhat for ease of extraction from the mould. This is one more procedure that depends a lot on the right timing, since quick cooling reduces the material too quick, causing warping of the product.

4. The unloading or de-molding step.
As soon as the product inside te mould has cooled adequately, the molder managing the process can then extract the completed item from the mould. The technique is repeated from the beginning, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Enka NC 28728 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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