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

rotomolding-Brookhaven-Rotational moulding refers to a plastic manufacturing solution that creates hollow stress-free products. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of forms, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods that no pressure is needed. It also has few contenders when it comes to the manufacture of large hollow items which are long-lasting and inexpensive.There is a variety of product lines that are created by this process including big water tanks, automobile products, complex shaped medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in terms of type and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Brookhaven NY 11719, 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-Brookhaven-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 New York 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 Brookhaven New York 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 system has been used since ancient times for creatingvseverl products. Egyptians for example, applied rotational molding procedures in the of ceramics. The Swiss were also using this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were made using this method some time between 1940 and 1950. The technique has however taken very long to take affect because it was considered to be a somewhat slow-moving process

1. Mold fitting.
A predetermined volume of polymer in grain form is filled into a hollow mold. The mould is usually made from cast aluminium or sheet steel substance. The coloring needed for the final goods 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 type of plastic engineering.

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

2. The heating up and fusion procedure.
Once inside the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done gradually, about 20 rotations per sixty seconds. One thing that is vital at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the product will lose stability and strength, generating a weak product. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which generates bubbles in the finalized product.

3. Mold cooling.
When the material has completely spent the right amount 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 creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is an additional step that depends a lot on the ideal timing, since quick cooling decreases the material too quickly, causing warping of the product.

4. The unloading or de-molding phase.
When the product inside te mold has cooled effectively, the person managing the procedure can then extract the finalized item from the mold. The procedure is repeated from the beginning, supplying a number of identical products.

For more information on the different rotational molding options offered for the Brookhaven NY 11719 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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