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

roto-molding-Prattville-Rotational moulding pertains to a plastic manufacturing practice that creates hollow stress-free product lines. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different shapes, colors and sizes. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing procedures because no pressure is needed. It also has few rivals when it comes down to the manufacture of large hollow items which are long-lasting and inexpensive.There is a wide range of items that are generated by this process including big water tanks, automobile products, intricate shaped medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Prattville AL 36066, 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

Plastic Molding-Prattville-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 Alabama 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 Prattville Alabama 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 molding procedure has been used since early times for creatingvseverl products. Egyptians for example, utilized rotocasting procedures in the of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were developed using this approach some time between 1940 and 1950. Due to the fact that it was looked at to be a very slow-moving process, the process has however taken long to become popular

1. Mould readying.
A fixed quantity of polymer in powder form is loaded into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The color tone wanted for the final product 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 design of plastic assembly.

Preheating 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 put within the oven.

2. The heating and fusion phase.
Once within the oven, the mould is rotated 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. The main thing that is essential at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the product will lose value and strength, creating a faulty item. If it is taken out from the oven too early, the polymer will not have flowed properly, which generates bubbles in the finalized product line.

3. Mould cooling.
When the product 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 a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is one more measure that relies a lot on the right timing, since rapid cooling shrinks the material too rapidly, causing warping of the item.

4. The offloading or de-moulding phase.
Once the material within te mould has cooled effectively, the person managing the process can then extract the finished item from the mould. The procedure is repeated from the start, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Prattville AL 36066 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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