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

roto-molding-New Concord-Rotational moulding refers to a plastic manufacturing practice that generates hollow stress-free items. The method relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have various designs, sizes and colors. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing procedures in that no pressure is required. It also has few competitors when it comes down to the manufacture of sizable hollow products which are long-lasting and inexpensive.There is a wide range of products that are developed by this process including large size water tanks, automobile materials, complex designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to type 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 New Concord OH 43762, 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 rotomoulding 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-New Concord-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 New Concord 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 Procedure in Detail

This molding procedure has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized rotomoulding techniques in the making of ceramics. The Swiss were also using this rotation format to create hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. The procedure has however taken very long to take affect because it was looked at to be a relatively slow-moving process

1. Mold preparation.
A predetermined quantity of polymer in powder form is packed into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel component. The colour preferred 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 design of plastic production.

Preheating of the oven follows, 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 positioned into the oven.

2. The heat and fusion process.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done slowly and gradually, about 20 rotations per min. One thing that is essential at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and durability, producing a poor item. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which generates bubbles in the finalized product.

3. Mold cooling.
When the product has completely spent the right 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 reduces slightly for ease of removal from the mould. This is another measure that relies a lot on the right timing, since quick cooling shrinks the material too quickly, causing bending of the material.

4. The un-loading or de-molding phase.
Once the component within te mould has cooled adequately, the person handling the operation can then extract the finalized product from the mould. The procedure is repeated from the beginning, providing a number of exact products.

For more information on the different rotational molding options offered for the New Concord OH 43762, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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