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

rotocasting-Wilmore-Rotational moulding refers to a plastic manufacturing solution that creates hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different forms, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods in that no pressure is needed. It also has few competitors when it involves the production of large hollow products which are long-lasting and inexpensive.There is a wide variety of items that are created by this process including large water tanks, automobile items, sophisticated molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of 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 Wilmore PA 15962, 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

Custom Molding-Wilmore-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 Pennsylvania 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 Wilmore Pennsylvania 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 Process Components

This molding method has been used since earlier times for creatingvseverl items. Egyptians as an example, used rotational molding systems in the producing of ceramics. The Swiss were also utilizing this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were made using this technique some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at as being a rather slow-moving process

1. Mold readying.
A predetermined measure of polymer in particle form is filled into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The coloring needed for the end goods 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 format of plastic engineering.

Pre-heating of the oven follows, 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 secured and inserted within the oven.

2. The heating up and fusion process.
Once placed into the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The spinning is done slowly, about 20 revolutions per min. Something that is vital at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, creating a faulty item. If it is extracted from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finished item.

3. Mold cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it shrinks slightly for ease of removal from the mold. This is an additional measure that depends a lot on the right timing, since rapid cooling decreases the material too quickly, causing bending of the material.

4. The offloading or de-molding step.
Once the component within te mould has cooled properly, the person handling the process can then extract the finalized product from the mold. The function is repeated from the beginning, making a number of similar product lines.

For more information on the different rotational molding options offered for the Wilmore PA 15962 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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