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

rotomoulding-North Smithfield-Rotational moulding refers to a plastic production procedure that creates hollow stress-free products. The process relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different shapes, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing methods that no pressure is involved. It also has few contenders when it comes down to the manufacture of large size hollow items which are durable and inexpensive.There is a wide range of products that are developed by this process including large water tanks, automobile materials, complex designed medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of type and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in North Smithfield RI 2896, 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

Plastic Products-North Smithfield-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 Rhode Island 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 North Smithfield Rhode Island 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 system has been used since early times for creatingvseverl items. Egyptians for example, employed rotocasting procedures in the creating of ceramics. The Swiss were also working with this rotation design to create hollow chocolate eggs. Some plastic items in the USA were manufactured using this procedure some time between 1940 and 1950. Since it was thought of to be a fairly slow-moving approach, the system has however taken long to catch on

1. Mould readying.
A predetermined amount of polymer in particle form is packed into a hollow mold. The mould is usually made of cast aluminium or sheet steel substance. The coloring wanted for the final 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 production.

Pre-heating of the oven follows, and it can 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 heat and fusion phase.
Once within the oven, the mould is revolved 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 spins per sixty seconds. Something that is critical at this moment is the amount of time the mold will spend within the oven. If it stays to long, the material will lose stability and durability, generating a faulty product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finalized product.

3. Mould cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it reduces somewhat for ease of removal from the mould. This is yet another step that relies a lot on the right timing, since rapid cooling shrinks the material too rapidly, causing bending of the item.

4. The offloading or de-moulding step.
When the component inside te mould has cooled adequately, the person managing the procedure can then extract the completed item from the mould. The technique is repeated from the start, giving a number of identical products.

For more information on the different rotational rotomolding options offered for the North Smithfield RI 2896 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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