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rotocasting-Prospect-Rotational molding refers to a plastic production procedure that produces hollow stress-free product lines. The procedure uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have several designs, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing procedures that no pressure is called for. It also has few contenders when it involves the creation of sizable hollow products which are long lasting and inexpensive.There is a wide range of product lines that are produced by this process including large water tanks, automobile items, intricate designed medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in regards to style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Prospect OH 43342, 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 roto-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

Plastic Molding-Prospect-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 Ohio 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 Prospect Ohio 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 Rotomoulding Process in Detail

This molding technique has been used since early times for creatingvseverl items. Egyptians as an example, utilized roto-molding solutions in the creating of ceramics. The Swiss were also applying this rotation method to create hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The system has however taken very long to take affect because it was thought of to be a somewhat slow process

1. Mould preparation.
A predetermined volume of polymer in powder form is loaded into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel material. The coloring intended for the final 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 design of plastic engineering.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and put into the oven.

2. The heat and fusion process.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done gradually, about 20 revolutions per minute. The main thing that is crucial at this point is the amount of time the mold will spend within the oven. If it overstays, the component will lose value and strength, generating a weak item. If it is extracted from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finalized item.

3. Mould cooling down.
When the product has completely spent the right amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mold. This is yet another measure that depends a lot on the correct timing, since rapid cooling reduces the material too quickly, causing warping of the material.

4. The removing or de-moulding step.
When the component inside te mould has cooled properly, the person taking care of the procedure can then extract the finalized product from the mould. The function is repeated from the beginning, supplying a series of exact product lines.

For more information on the different rotational molding options offered for the Prospect OH 43342, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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