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

rotocasting-Circleville-Rotational molding pertains to a plastic production solution that makes hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have a variety of forms, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this different from other plastic manufacturing methods in that no pressure is needed. It also has few contenders when it comes down to the production of large size hollow products which are durable and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile items, complex shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to 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 Circleville OH 43113, 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 rotational moulding 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-Circleville-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 Circleville 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 Process Components

This moulding technique has been used since early times for creatingvseverl items. Egyptians for example, employed rotational molding procedures in the producing of ceramics. The Swiss were also applying this rotation approach to make hollow chocolate eggs. Some plastic items in the USA were manufactured utilizing this approach some time between 1940 and 1950. Since it was considered to be a somewhat slow technique, the process has however taken long to catch on

1. Mold fitting.
A fixed quantity of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The color tone preferred for the end product is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic manufacturing.

Preheating 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 secured and placed inside the oven.

2. The heating up and fusion phase.
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 mould. The turning is done slowly and gradually, about 20 rotations per minute. One thing that is vital at this point is the period of time the mould will spend inside the oven. If it stays to long, the product will lose stability and strength, generating a faulty item. If it is extracted from the oven too early, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mould cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces a little for ease of removal from the mold. This is one more measure that depends a lot on the ideal timing, since rapid cooling shrinks the material too quick, causing warping of the material.

4. The offloading or de-moulding phase.
When the product inside te mould has cooled effectively, the person managing the process can then take out the finished item from the mould. The function is repeated from the start, making a number of exact products.

For more information on the different rotational molding options offered for the Circleville OH 43113, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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