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

rotational moulding-Westfield Center-Rotational moulding pertains to a plastic manufacturing practice that produces hollow stress-free product lines. The process uses high temperatures and bi axial rotation to come up with seamless, one piece items that have several forms, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing processes because no pressure is involved. It also has few competitors when it comes down to the manufacture of sizable hollow items which are long lasting and inexpensive.There is a variety of products that are produced by this process including large size water tanks, automobile products, sophisticated designed medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Westfield Center OH 44251, 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

Plastic Molding-Westfield Center-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 Westfield Center 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 process has been used since earlier times for creatingvseverl products. Egyptians as an example, applied rotomoulding procedures in the manufacturing of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this technique some time between 1940 and 1950. The procedure has however taken very long to catch on because it was thought of to be a somewhat slow-moving process

1. Mold readying.
A predetermined measure of polymer in particle form is filled into a hollow mold. The mould is usually built from cast aluminium or sheet steel material. The colour preferred for the end item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

Pre-heating of the oven follows, 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 within the oven.

2. The heating and fusion step.
Once within the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done gradually, about 20 spins per min. One thing that is critical at this moment is the amount of time the mould will spend within the oven. If it stays to long, the material will lose value and strength, making a poor item. If it is extracted from the oven too early, the polymer will not have flowed correctly, which creates bubbles in the completed item.

3. Mould cooling down.
When the product has sufficiently spent the correct 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 generates a cool mist. When the material cools, it reduces somewhat for ease of removal from the mold. This is an additional step that relies a lot on the correct timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-molding step.
Once the material inside te mould has cooled properly, the person taking care of the operation can then extract the completed product from the mould. The function is repeated from the start, supplying a number of exact items.

For more information on the different rotational molding options offered for the Westfield Center OH 44251, 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 plastic manufacturing

Local Resources

Process Example
Google Map