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

rotomolding-Piqua-Rotational molding pertains to a plastic production method that produces hollow stress-free products. The technique utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have several shapes, colors and sizes. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing procedures in that no pressure is required. It also has few rivals when it pertains to the production of large size hollow items which are long lasting and inexpensive.There is a wide range of items that are produced by this process including large size water tanks, automobile materials, complex designed medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of design 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 Piqua OH 45356, 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

Custom Molded-Piqua-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 Piqua 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 Method Components

This molding procedure has been used since earlier times for creatingvseverl products. Egyptians as an example, utilized rotational molding techniques in the producing of ceramics. The Swiss were also utilizing this rotation approach to make hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this technique some time between 1940 and 1950. The process has however taken very long to catch on because it was considered to be a relatively slow process

1. Mould readying.
A fixed amount of polymer in grain form is filled into a hollow mould. The mold is usually made from cast aluminium or sheet steel component. The colour wanted for the final goods 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 manufacturing.

Pre-heating of the oven starts, and it can 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 locked and installed within the oven.

2. The heating up 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 spinning is done slowly and gradually, about 20 rotations per minute. The main thing that is essential at this point is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and durability, generating a faulty product. If it is extracted from the oven too early, the polymer will not have flowed properly, which creates bubbles in the finalized item.

3. Mold cooling down.
When the component has completely spent the correct 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 a cool mist. When the product cools, it shrinks a little for ease of extraction from the mould. This is an additional measure that relies a lot on the correct timing, since rapid cooling reduces the material too fast, causing warping of the item.

4. The un-loading or de-moulding step.
Once the component within te mould has cooled adequately, the molder managing the operation can then extract the completed product from the mould. The function is repeated from the beginning, providing a number of exact product lines.

For more information on the different rotational molding options offered for the Piqua OH 45356, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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