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

rotomolding-Riegelsville-Rotational molding refers to a plastic production practice that creates hollow stress-free products. The method uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have various shapes, sizes and colors. This procedure is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing methods in that no pressure is involved. It also has few contenders when it pertains to the manufacture of sizable hollow products which are resilient and inexpensive.There is a wide range of products that are created by this process including large size water tanks, automobile products, sophisticated molded medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in regards to type and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Riegelsville PA 18077, 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 rotocasting 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-Riegelsville-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 Riegelsville 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 in Detail

This moulding system has been used since ancient times for creatingvseverl product lines. Egyptians for example, used roto-molding systems in the making of ceramics. The Swiss were also making use of this rotation type to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. Due to the fact that it was looked at to be a relatively slow technique, the system has however taken long to become popular

1. Mould preparation.
A fixed volume of polymer in powder form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The coloration needed for the end product is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic assembly.

Preheating of the oven follows, and it can 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 put into the oven.

2. The heating 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 sixty seconds. Something that is essential at this point is the period of time the mould will spend inside the oven. If it stays to long, the component will lose value and durability, generating a poor item. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which develops bubbles in the completed product line.

3. Mold cooling.
When the product has completely spent the right 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 creates a cool mist. When the product cools, it reduces slightly for ease of extraction from the mould. This is one more step that relies a lot on the ideal timing, since quick cooling decreases the material too rapidly, causing warping of the material.

4. The removing or de-moulding step.
As soon as the component within te mold has cooled successfully, the person managing the process can then take out the completed product from the mould. The process is repeated from the beginning, making a number of exact product lines.

For more information on the different rotational molding options offered for the Riegelsville PA 18077 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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