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

roto-molding-Dallas-Rotational moulding pertains to a plastic manufacturing solution that creates hollow stress-free products. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of designs, sizes and colors. This technique is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods because no pressure is required. It also has few competitors when it comes down to the production of large size hollow items which are long lasting and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile items, intricate shaped medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to 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 Dallas GA 30132, 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 roto-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 Products-Dallas-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 Georgia 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 Dallas Georgia 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 Process in Detail

This moulding process has been used since earlier times for creatingvseverl product lines. Egyptians for instance, applied roto-molding systems in the making of ceramics. The Swiss were also employing this rotation type to create hollow chocolate eggs. Some plastic products in the USA were made using this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at as being a rather slow process

1. Mould readying.
A predetermined amount of polymer in particle form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel substance. The color tone chosen for the finished 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 style of plastic manufacturing.

Preheating of the oven starts, and it may 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 inside the oven.

2. The heating and fusion process.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly, about 20 revolutions per minute. The main thing that is vital at this point is the amount of time the mould will spend within the oven. If it stays to long, the product will lose stability and strength, producing a poor product. If it is removed from the oven prematurely, the polymer will not have liquefied properly, which creates bubbles in the finalized item.

3. Mould cooling down.
When the component has sufficiently spent the correct 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 creates a cool mist. When the material cools, it reduces a little for ease of extraction from the mould. This is another step that depends a lot on the right timing, since rapid cooling shrinks the material too fast, causing bending of the material.

4. The offloading or de-molding step.
Once the material within te mould has cooled adequately, the person managing the process can then remove the finished item from the mould. The procedure is repeated from the start, supplying a series of identical product lines.

For more information on the different rotational molding options offered for the Dallas GA 30132 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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