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

roto-molding-Great Neck-Rotational moulding pertains to a plastic manufacturing procedure that creates hollow stress-free products. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have various shapes, colors and sizes. This procedure is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing methods in that no pressure is involved. It also has few contenders when it pertains to the manufacture of large size hollow items which are long-lasting and inexpensive.There is a variety of products that are created by this process including large size water tanks, automobile materials, complex molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Great Neck NY 11020, 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 rotocasting 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 Manufacturing-Great Neck-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 Great Neck 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 Roto-Molding Method in Detail

This moulding technique has been used since early times for creatingvseverl items. Egyptians as an example, worked with roto-molding systems in the manufacturing of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were manufactured using this approach some time between 1940 and 1950. Given that it was regarded to be a rather slow-moving procedure, the process has however taken long to catch on

1. Mould prep work.
A fixed volume of polymer in powder form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel component. The coloring wanted for the end item 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 style of plastic assembly.

Preheating of the oven starts, 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 secured and placed into the oven.

2. The heating and fusion process.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly, about 20 revolutions per min. Something that is crucial at this point is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, creating a faulty item. If it is taken out from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finished product.

3. Mold cooling.
When the component has sufficiently spent the enough 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 a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mold. This is yet another measure that depends a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing warping of the product.

4. The discharging or de-moulding step.
Once the product within te mold has cooled properly, the molder managing the process can then extract the finalized product from the mold. The process is repeated from the start, making a number of exact items.

For more information on the different rotational molding options offered for the Great Neck NY 11020 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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