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

rotomolding-North Kingstown-Rotational moulding pertains to a plastic production procedure that makes hollow stress-free items. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of forms, sizes and colors. This technique is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is needed. It also has few competitors when it comes to 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 materials, complex molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of style and forms 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 Kingstown RI 2852, 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 rotomoulding 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-North Kingstown-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 Kingstown 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 procedure has been used since earlier times for creatingvseverl product lines. Egyptians for example, applied rotomoulding procedures in the making of ceramics. The Swiss were also making use of this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. The system has however taken very long to take affect because it was thought of to be a very slow process

1. Mold fitting.
A predetermined volume of polymer in powder form is filled into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel substance. The color desired for the final 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 style of plastic production.

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 locked and inserted within the oven.

2. The heating and fusion phase.
Once within the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The turning is done slowly and gradually, about 20 revolutions per min. Something that is critical at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and strength, generating a weak product. If it is extracted from the oven prematurely, the polymer will not have melted properly, which produces bubbles in the completed item.

3. Mould cooling down.
When the product has completely spent the correct amount of time in the oven, it is then removed for cooling. This can 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 removal from the mould. This is another measure that depends a lot on the ideal timing, since quick cooling reduces the material too quick, causing bending of the product.

4. The discharging or de-molding phase.
As soon as the component within te mould has cooled successfully, the person handling the process can then take out the finished item from the mould. The technique is repeated from the start, making a number of similar items.

For more information on the different rotational rotomolding options offered for the North Kingstown RI 2852 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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