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

roto-molding-Venango-Rotational molding refers to a plastic production procedure that generates hollow stress-free items. The function depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have varying forms, colors and sizes. This procedure is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing procedures in that no pressure is called for. It also has few competitors when it involves the manufacture of large size hollow products which are durable and inexpensive.There is a wide range of product lines that are generated by this process including large size water tanks, automobile products, intricate shaped medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to type and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Venango PA 16440, 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

Plastic Molding-Venango-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 Venango 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 Procedure Components

This moulding technique has been used since early times for creatingvseverl product lines. Egyptians as an example, used roto-molding procedures in the of ceramics. The Swiss were also using this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this procedure some time between 1940 and 1950. Considering that it was regarded to be a fairly slow method, the method has however taken long to catch on

1. Mold readying.
A predetermined quantity of polymer in powder form is loaded into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel component. The color tone wanted for the finished 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 style of plastic production.

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

2. The heat and fusion process.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly, about 20 revolutions per min. One thing that is vital at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and strength, generating a poor product. If it is removed from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the finished item.

3. Mold cooling down.
When the material has completely spent the enough 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 material cools, it shrinks slightly for ease of extraction from the mold. This is yet another measure that relies a lot on the ideal timing, since rapid cooling decreases the material too rapidly, causing warping of the item.

4. The offloading or de-moulding step.
Once the material inside te mold has cooled effectively, the molder handling the process can then take out the completed product from the mould. The procedure is repeated from the beginning, making a series of similar items.

For more information on the different rotational molding options offered for the Venango PA 16440 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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