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

rotational moulding-Palmer-Rotational moulding refers to a plastic production solution that generates hollow stress-free products. The function depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have a variety of designs, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing processes in that no pressure is needed. It also has few contenders when it pertains to the creation of large size hollow items which are long-lasting and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile items, intricate shaped medical items, leisure equipment, toys, canoes, commercial 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 Palmer MA 1069, 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-Palmer-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 Massachusetts 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 Palmer Massachusetts 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 moulding method has been used since earlier times for creatingvseverl items. Egyptians as an example, applied roto-molding systems in the producing of ceramics. The Swiss were also making use of this rotation type to create hollow chocolate eggs. Some plastic items in the USA were developed using this procedure some time between 1940 and 1950. Considering that it was regarded to be a relatively slow-moving approach, the approach has however taken long to catch on

1. Mould readying.
A fixed measure of polymer in grain form is filled into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel substance. The colour desired for the end item 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 design of plastic manufacturing.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and put inside the oven.

2. The heating up and fusion phase.
Once inside the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per min. The main thing that is vital at this moment is the amount of time the mould will spend inside the oven. If it overstays, the product will lose value and durability, generating a poor item. If it is taken out from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the completed product.

3. Mold cooling.
When the material has completely spent the enough of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks somewhat for ease of extraction from the mold. This is yet another step that relies a lot on the right timing, since rapid cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-molding step.
When the material inside te mold has cooled correctly, the molder handling the procedure can then extract the finished product from the mold. The procedure is repeated from the start, giving a series of similar products.

For more information on the different rotational rotomolding options offered for the Palmer MA 1069 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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