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

rotomoulding-Jamestown-Rotational molding refers to a plastic production procedure that produces hollow stress-free products. The method relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have several forms, colors and sizes. This technique is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing techniques because no pressure is called for. It also has few contenders when it comes down to the creation of large hollow items which are long-lasting and inexpensive.There is a wide variety of items that are produced by this process including large water tanks, automobile materials, intricate shaped medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to 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 Jamestown RI 2835, 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 Molded-Jamestown-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 Jamestown 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 Method in Detail

This molding procedure has been used since earlier times for creatingvseverl items. Egyptians for example, applied rotomoulding solutions in the manufacturing of ceramics. The Swiss were also making use of this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were made using this approach some time between 1940 and 1950. Due to the fact that it was viewed to be a relatively slow technique, the procedure has however taken long to become popular

1. Mould prep work.
A fixed measure of polymer in particle form is loaded into a hollow mold. The mold is usually made of cast aluminium or sheet steel material. The colour 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 follows, 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 sealed and positioned into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per min. One thing that is important at this point is the amount of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, producing a weak item. If it is removed from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finalized item.

3. Mould cooling down.
When the product has completely spent the right amount 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 component cools, it reduces a little for ease of extraction from the mould. This is an additional procedure that depends a lot on the ideal timing, since quick cooling shrinks the material too quick, causing warping of the product.

4. The unloading or de-molding step.
As soon as the component inside te mould has cooled properly, the molder managing the procedure can then extract the finished product from the mold. The process is repeated from the beginning, supplying a series of similar products.

For more information on the different rotational rotomolding options offered for the Jamestown RI 2835 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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