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

rotational moulding-Fleetwood-Rotational moulding refers to a plastic manufacturing technique that generates hollow stress-free products. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have varying forms, colors and sizes. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing procedures because no pressure is called for. It also has few rivals when it involves the production of large hollow products which are durable and inexpensive.There is a variety of products that are produced by this process including large size water tanks, automobile items, sophisticated shaped medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to type 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 Fleetwood PA 19522, 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

Custom Molded-Fleetwood-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 Fleetwood 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 Method Components

This moulding procedure has been used since early times for creatingvseverl product lines. Egyptians as an example, worked with rotomoulding solutions in the manufacturing of ceramics. The Swiss were also applying this rotation approach to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this technique some time between 1940 and 1950. The procedure has however taken very long to take affect because it was thought of as being a rather slow-moving process

1. Mold preparation.
A predetermined measure of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The coloration preferred for the end item 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 type of plastic assembly.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then sealed and inserted inside the oven.

2. The heat and fusion process.
Once placed into the oven, the mould is rotated 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 spins per min. Something that is essential at this moment is the period of time the mould will spend inside the oven. If it overstays, the component 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 develops bubbles in the completed product.

3. Mold cooling down.
When the component has sufficiently 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 creates a cool mist. When the component cools, it shrinks slightly for ease of extraction from the mold. This is an additional step that depends a lot on the correct timing, since quick cooling shrinks the material too quickly, causing bending of the item.

4. The removing or de-molding phase.
As soon as the product within te mould has cooled adequately, the person taking care of the operation can then take out the completed item from the mould. The procedure is repeated from the start, giving a series of exact items.

For more information on the different rotational molding options offered for the Fleetwood PA 19522 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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