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

rotocasting-Yarmouth-Rotational moulding pertains to a plastic manufacturing practice that generates hollow stress-free product lines. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have varying designs, colors and sizes. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this different from other plastic manufacturing processes because no pressure is needed. It also has few contenders when it involves the creation of sizable hollow items which are long-lasting and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile products, intricate shaped medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Yarmouth ME 4096, 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 rotomolding 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-Yarmouth-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 Maine 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 Yarmouth Maine 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 Procedure in Detail

This molding process has been used since early times for creatingvseverl products. Egyptians as an example, utilized rotomoulding procedures in the producing of ceramics. The Swiss were also employing this rotation technique to generate hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this approach some time between 1940 and 1950. Given that it was thought of to be a rather slow technique, the method has however taken long to become popular

1. Mould prep work.
A fixed amount of polymer in particle form is filled into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The coloring wanted for the final goods 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 assembly.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then secured and placed within the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done gradually, about 20 spins per minute. The main thing that is crucial at this moment is the amount of time the mould will spend inside the oven. If it overstays, the material will lose stability and strength, generating a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which creates bubbles in the completed product.

3. Mould cooling.
When the product has completely spent the enough 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 product cools, it reduces slightly for ease of extraction from the mold. This is yet another step that depends upon a lot on the right timing, since quick cooling shrinks the material too quick, causing bending of the item.

4. The discharging or de-moulding step.
As soon as the material within te mold has cooled adequately, the molder taking care of the process can then take out the completed product from the mold. The process is repeated from the start, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Yarmouth ME 4096 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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