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

rotomolding-Cliff Island-Rotational moulding pertains to a plastic manufacturing solution that generates hollow stress-free items. The process depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have many different designs, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing procedures that no pressure is needed. It also has few competitors when it pertains to the creation of large hollow items which are long lasting and inexpensive.There is a wide range of products that are produced by this process including large water tanks, automobile products, complex shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility 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 Cliff Island ME 4019, 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 Molding-Cliff Island-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 Cliff Island 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 Process Components

This moulding process has been used since ancient times for creatingvseverl products. Egyptians as an example, worked with rotational molding systems in the producing of ceramics. The Swiss were also applying this rotation technique to generate hollow chocolate eggs. Some plastic items in the USA were developed using this method some time between 1940 and 1950. Considering that it was viewed to be a very slow process, the process has however taken long to catch on

1. Mold preparation.
A predetermined measure of polymer in powder form is packed into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The coloring chosen for the end item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic manufacturing.

Pre-heating of the oven starts, 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 sealed and placed inside the oven.

2. The heating and fusion process.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done slowly and gradually, about 20 rotations per minute. The main thing that is critical at this point is the period of time the mould will spend within the oven. If it stays to long, the material will lose stability and durability, making a poor item. If it is removed from the oven too early, the polymer will not have flowed correctly, which produces bubbles in the finalized product.

3. Mold cooling.
When the product has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it reduces slightly for ease of extraction from the mould. This is an additional step that depends upon a lot on the correct timing, since quick cooling shrinks the material too quickly, causing bending of the item.

4. The removing or de-moulding step.
As soon as the component within te mold has cooled effectively, the person taking care of the procedure can then extract the finished item from the mould. The technique is repeated from the start, supplying a number of identical products.

For more information on the different rotational rotomolding options offered for the Cliff Island ME 4019 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 custom molding

Local Resources

Production Example
Google Map