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

rotocasting-Madison-Rotational moulding pertains to a plastic manufacturing solution that makes hollow stress-free items. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have many different designs, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing procedures that no pressure is required. It also has few contenders when it pertains to the creation of large hollow items which are durable and inexpensive.There is a wide range of products that are produced by this process including large size water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of design and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Madison OH 44057, 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

Custom Molded-Madison-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 Madison 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 Rotomolding Method Components

This moulding technique has been used since early times for creatingvseverl products. Egyptians as an example, utilized roto-molding methods in the producing of ceramics. The Swiss were also using this rotation format to make hollow chocolate eggs. Some plastic items in the USA were manufactured using this procedure some time between 1940 and 1950. Since it was considered to be a relatively slow-moving approach, the approach has however taken long to become popular

1. Mold prep work.
A predetermined volume of polymer in powder form is loaded into a hollow mould. The mould is usually built from cast aluminium or sheet steel material. The coloration wanted for the final goods is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

Pre-heating 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 mould with the powdered polymer is then secured and put inside the oven.

2. The heating up and fusion step.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 spins per sixty seconds. The main thing that is critical 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, making a poor product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the completed item.

3. Mould cooling.
When the component has completely spent the right 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 creates a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is yet another procedure that depends upon a lot on the right timing, since rapid cooling reduces the material too fast, causing bending of the material.

4. The offloading or de-moulding phase.
As soon as the product within te mold has cooled properly, the person taking care of the procedure can then remove the completed product from the mould. The function is repeated from the start, supplying a number of exact products.

For more information on the different rotational molding options offered for the Madison OH 44057, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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