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

roto-molding-Mount Carmel-Rotational moulding refers to a plastic production solution that produces hollow stress-free items. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, colors and sizes. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing techniques in that no pressure is required. It also has few contenders when it comes to the production of sizable hollow items which are resilient and inexpensive.There is a variety of product lines that are created by this process including big water tanks, automobile items, sophisticated shaped medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of type 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 Mount Carmel PA 17851, 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 Products-Mount Carmel-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 Mount Carmel 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 Rotomolding Process Components

This moulding technique has been used since ancient times for creatingvseverl items. Egyptians for example, used rotocasting procedures in the producing of ceramics. The Swiss were also applying this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were made using this technique some time between 1940 and 1950. The system has however taken very long to catch on because it was looked at as being a moderately slow process

1. Mold readying.
A predetermined amount of polymer in grain form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The coloring desired for the finished product 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 style of plastic manufacturing.

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 mould with the powdered polymer is then locked and inserted inside the oven.

2. The heating up and fusion step.
Once within 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 turning is done slowly, about 20 revolutions per min. One thing that is critical at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and durability, creating a weak item. If it is taken out from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the completed product line.

3. Mold cooling.
When the material has sufficiently spent the enough 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 extraction from the mould. This is another step that depends a lot on the ideal timing, since quick cooling decreases the material too fast, causing bending of the material.

4. The unloading or de-molding step.
When the product inside te mold has cooled effectively, the molder handling the process can then extract the completed product from the mold. The procedure is repeated from the start, providing a series of identical items.

For more information on the different rotational molding options offered for the Mount Carmel PA 17851 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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