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

rotational moulding-Cold Spring-Rotational molding refers to a plastic manufacturing procedure that creates hollow stress-free product lines. The function depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different 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 different from other plastic manufacturing techniques in that no pressure is needed. It also has few rivals when it comes to the creation of sizable hollow products which are durable and inexpensive.There is a wide range of products that are developed by this process including large size water tanks, automobile materials, sophisticated molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to design and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Cold Spring NY 10516, 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-Cold Spring-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 Cold Spring 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 Process in Detail

This moulding process has been used since ancient times for creatingvseverl products. Egyptians for example, applied rotational molding procedures in the manufacturing of ceramics. The Swiss were also employing this rotation format to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this approach some time between 1940 and 1950. Due to the fact that it was considered to be a basically slow method, the system has however taken long to become popular

1. Mould fitting.
A predetermined volume of polymer in powder form is loaded into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel substance. 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 format of plastic manufacturing.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then locked and put within the oven.

2. The heating up and fusion process.
Once inside the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per sixty seconds. One thing that is crucial at this point is the amount of time the mould will spend within the oven. If it overstays, the product will lose value and durability, generating a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which develops bubbles in the finished item.

3. Mold cooling down.
When the component 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 generates a cool mist. When the material cools, it shrinks slightly for ease of removal from the mold. This is another procedure that depends a lot on the correct timing, since rapid cooling reduces the material too quick, causing warping of the material.

4. The un-loading or de-molding step.
When the material within te mould has cooled successfully, the person handling the procedure can then take out the finalized product from the mold. The function is repeated from the beginning, supplying a number of exact items.

For more information on the different rotational molding options offered for the Cold Spring NY 10516 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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