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

rotational molding-Yorktown Heights-Rotational moulding refers to a plastic production solution that makes hollow stress-free products. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of shapes, colors and sizes. This procedure is also known as 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 processes that no pressure is involved. It also has few rivals when it comes down to the manufacture of large size hollow items which are long-lasting and inexpensive.There is a wide variety of product lines that are generated by this process including large size water tanks, automobile products, intricate designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Yorktown Heights NY 10598, 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 rotomolding 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 Products-Yorktown Heights-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 Yorktown Heights 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 Components

This moulding method has been used since earlier times for creatingvseverl items. Egyptians for example, employed roto-molding techniques in the making of ceramics. The Swiss were also using this rotation design to make hollow chocolate eggs. Some plastic items in the USA were created using this technique some time between 1940 and 1950. The process has however taken very long to catch on because it was considered to be a moderately slow-moving process

1. Mould preparation.
A predetermined quantity of polymer in powder form is packed into a hollow mould. The mold is usually built from cast aluminium or sheet steel material. The colour preferred for the end product 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 manufacturing.

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 put within the oven.

2. The heat and fusion procedure.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per sixty seconds. Something that is essential at this point is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, generating a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the completed item.

3. Mold cooling.
When the product has sufficiently spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it shrinks a little for ease of removal from the mold. This is yet another measure that depends upon a lot on the correct timing, since quick cooling shrinks the material too rapidly, causing bending of the material.

4. The un-loading or de-moulding phase.
Once the component within te mould has cooled correctly, the molder managing the operation can then take out the completed product from the mold. The technique is repeated from the beginning, providing a number of exact products.

For more information on the different rotational molding options offered for the Yorktown Heights NY 10598 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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