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

roto-molding-Salineville-Rotational moulding refers to a plastic manufacturing method that produces hollow stress-free product lines. The technique uses high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of forms, colors and sizes. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing techniques in that no pressure is required. It also has few competitors when it comes down to the creation of sizable hollow items which are resilient and inexpensive.There is a wide variety of items that are produced by this process including large size water tanks, automobile items, sophisticated designed medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Salineville OH 43945, 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 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 Molding-Salineville-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 Salineville 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 Components

This molding system has been used since earlier times for creatingvseverl product lines. Egyptians for example, utilized rotational molding methods in the manufacturing of ceramics. The Swiss were also using this rotation technique to generate hollow chocolate eggs. Some plastic products in the USA were made using this approach some time between 1940 and 1950. Given that it was regarded to be a somewhat slow technique, the process has however taken long to catch on

1. Mould prep work.
A fixed quantity of polymer in grain form is loaded into a hollow mould. The mold is usually built from cast aluminium or sheet steel component. The color tone wanted for the final goods 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 format 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 secured and placed inside the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per minute. Something that is crucial at this moment is the amount of time the mould will spend inside the oven. If it overstays, the material will lose stability and strength, making a weak item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finished item.

3. Mold cooling down.
When the component has completely spent the correct amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks a little for ease of extraction from the mould. This is yet another measure that relies a lot on the ideal timing, since quick cooling shrinks the material too quickly, causing bending of the material.

4. The removing or de-molding phase.
As soon as the product inside te mould has cooled adequately, the person managing the operation can then remove the completed product from the mould. The technique is repeated from the start, giving a number of similar product lines.

For more information on the different rotational molding options offered for the Salineville OH 43945, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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