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

rotomolding-Pinetown-Rotational moulding pertains to a plastic manufacturing solution that creates hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of shapes, colors and sizes. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures because no pressure is required. It also has few rivals when it pertains to the manufacture of large size hollow items which are resilient and inexpensive.There is a variety of products that are generated by this process including large water tanks, automobile products, complex molded medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of style and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Pinetown NC 27865, 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 molding 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-Pinetown-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 Pinetown 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 Rotomolding Process in Detail

This molding operation has been used since early times for creatingvseverl items. Egyptians for example, utilized roto-molding systems in the producing of ceramics. The Swiss were also making use of this rotation method to create hollow chocolate eggs. Some plastic products in the USA were created using this procedure some time between 1940 and 1950. Given that it was viewed to be a basically slow system, the process has however taken long to catch on

1. Mould preparation.
A fixed volume of polymer in powder form is filled into a hollow mold. The mould is usually made of cast aluminium or sheet steel component. The color tone intended for the final item 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 format of plastic production.

Preheating of the oven follows, and it can 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 secured and put within the oven.

2. The heating up and fusion step.
Once inside the oven, the mould is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The turning is done slowly and gradually, about 20 rotations per sixty seconds. One thing that is crucial at this point is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose value and strength, creating a faulty item. If it is extracted from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the completed product line.

3. Mould cooling.
When the product has sufficiently spent the right 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 creates a cool mist. When the material cools, it reduces a little for ease of extraction from the mould. This is another measure that depends a lot on the ideal timing, since rapid cooling decreases the material too fast, causing warping of the product.

4. The offloading or de-moulding step.
As soon as the product inside te mold has cooled effectively, the person managing the procedure can then take out the finished item from the mold. The process is repeated from the start, providing a series of identical items.

For more information on the different rotational rotomolding options offered for the Pinetown NC 27865 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic molding

Local Resources

Production Example
Google Map