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

rotomoulding-Waverly-Rotational moulding refers to a plastic manufacturing practice that produces hollow stress-free items. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different designs, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing techniques because no pressure is needed. It also has few contenders when it pertains to the production of large size hollow items which are durable and inexpensive.There is a wide range of products that are created by this process including large water tanks, automobile materials, intricate molded medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in regards to style and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Waverly OH 45690, 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

Plastic Products-Waverly-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 Waverly 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 Method Components

This molding system has been used since early times for creatingvseverl items. Egyptians for example, used roto-molding techniques in the making of ceramics. The Swiss were also applying this rotation type to make hollow chocolate eggs. Some plastic products in the USA were developed using this technique some time between 1940 and 1950. The technique has however taken long to take affect because it was looked at to be a relatively slow process

1. Mould preparation.
A fixed quantity of polymer in particle form is filled into a hollow mold. The mold is usually made of cast aluminium or sheet steel component. The color preferred for the finished item 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 manufacturing.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then secured and placed within the oven.

2. The heating and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The rotation is done slowly and gradually, about 20 spins per sixty seconds. The main thing that is critical at this point is the amount of time the mold will spend inside the oven. If it overstays, the component will lose stability and strength, generating a faulty product. If it is removed from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the finished product.

3. Mould cooling.
When the material has completely spent the correct 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 creates a cool mist. When the product cools, it reduces slightly for ease of extraction from the mold. This is one more measure that relies a lot on the right timing, since rapid cooling reduces the material too fast, causing bending of the product.

4. The un-loading or de-molding step.
Once the component within te mould has cooled properly, the person taking care of the procedure can then take out the completed product from the mold. The procedure is repeated from the beginning, making a series of similar product lines.

For more information on the different rotational molding options offered for the Waverly OH 45690, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molded

Local Resources

Process Example
Google Map