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

rotational moulding-Summitville-Rotational moulding pertains to a plastic production solution that generates hollow stress-free products. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different designs, sizes and colors. This method is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing techniques that no pressure is involved. It also has few competitors when it pertains to the manufacture of sizable hollow items which are resilient and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile products, sophisticated shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of type and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Summitville OH 43962, 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-Summitville-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 Summitville 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 Roto-Molding Method in Detail

This moulding procedure has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotocasting methods in the manufacturing of ceramics. The Swiss were also applying this rotation format to generate hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. The system has however taken very long to take affect because it was considered to be a rather slow process

1. Mold prep work.
A predetermined measure of polymer in powder form is filled into a hollow mould. The mold is usually made of cast aluminium or sheet steel material. The colour intended for the final 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 production.

Preheating of the oven starts, 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 locked and placed within the oven.

2. The heating and fusion process.
Once placed into the oven, the mold is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done gradually, about 20 rotations per minute. One thing that is critical at this moment is the amount of time the mould will spend within the oven. If it overstays, the material will lose value and strength, generating a weak item. If it is taken out from the oven too early, the polymer will not have flowed correctly, which develops bubbles in the finalized item.

3. Mold cooling down.
When the product has sufficiently spent the correct 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 generates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is an additional step that depends a lot on the correct timing, since quick cooling decreases the material too rapidly, causing warping of the item.

4. The removing or de-molding phase.
When the material inside te mold has cooled properly, the molder managing the operation can then remove the completed item from the mold. The technique is repeated from the start, providing a series of similar products.

For more information on the different rotational molding options offered for the Summitville OH 43962, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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