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

roto-molding-Salt Point-Rotational molding refers to a plastic manufacturing method that creates hollow stress-free items. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have several shapes, colors and sizes. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing methods because no pressure is called for. It also has few rivals when it involves the creation of large size hollow items which are long lasting and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile items, complex designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Salt Point NY 12578, 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 molding 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 Molding-Salt Point-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 Salt Point 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 Procedure in Detail

This moulding method has been used since ancient times for creatingvseverl items. Egyptians for example, used rotocasting techniques in the of ceramics. The Swiss were also employing this rotation style to make hollow chocolate eggs. Some plastic products in the USA were developed using this approach some time between 1940 and 1950. Given that it was thought of to be a somewhat slow process, the process has however taken long to become popular

1. Mold readying.
A fixed volume of polymer in grain form is loaded into a hollow mold. The mould is usually made of cast aluminium or sheet steel material. The coloration intended for the final product is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic production.

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

2. The heat and fusion step.
Once inside the oven, the mould is turned 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 revolutions per sixty seconds. One thing that is crucial at this point is the period of time the mold will spend within the oven. If it overstays, the product will lose value and strength, making a poor product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which develops bubbles in the finalized product line.

3. Mold cooling.
When the material has sufficiently spent the right amount 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 generates a cool mist. When the material cools, it reduces somewhat for ease of removal from the mould. This is another procedure that depends a lot on the correct timing, since rapid cooling shrinks the material too fast, causing warping of the product.

4. The offloading or de-moulding step.
As soon as the component inside te mould has cooled correctly, the molder taking care of the operation can then remove the finished product from the mould. The technique is repeated from the start, making a series of exact products.

For more information on the different rotational molding options offered for the Salt Point NY 12578 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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