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

rotocasting-Glen Oaks-Rotational molding pertains to a plastic manufacturing procedure that makes hollow stress-free items. The process relies on high temperatures and bi axial rotation to come 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 function that makes this unique from other plastic manufacturing procedures because no pressure is required. It also has few contenders when it pertains to the production of large size hollow products which are durable and inexpensive.There is a wide variety of products that are generated by this process including large size water tanks, automobile items, intricate molded medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of design 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 Glen Oaks NY 11004, 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 rotational moulding 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-Glen Oaks-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 Glen Oaks 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 Rotomoulding Method Components

This moulding system has been used since early times for creatingvseverl products. Egyptians for instance, employed roto-molding solutions in the manufacturing of ceramics. The Swiss were also applying this rotation approach to make hollow chocolate eggs. Some plastic products in the USA were manufactured using this approach some time between 1940 and 1950. The technique has however taken long to catch on because it was looked at to be a pretty slow-moving process

1. Mold readying.
A predetermined measure of polymer in grain form is packed into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel component. The colour desired for the finished item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic production.

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

2. The heating up and fusion phase.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The turning is done slowly, about 20 spins per min. Something that is essential at this moment is the period of time the mold will spend inside the oven. If it stays to long, the product will lose stability and strength, creating a poor product. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which produces bubbles in the completed product.

3. Mould cooling.
When the material has sufficiently spent the correct 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 generates a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is one more procedure that relies a lot on the correct timing, since quick cooling shrinks the material too quick, causing warping of the product.

4. The unloading or de-moulding phase.
Once the product inside te mould has cooled adequately, the molder taking care of the process can then extract the completed product from the mold. The technique is repeated from the beginning, providing a series of identical products.

For more information on the different rotational molding options offered for the Glen Oaks NY 11004 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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