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

rotational moulding-Clarkston-Rotational molding refers to a plastic production practice that makes hollow stress-free products. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have different shapes, colors and sizes. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing processes that no pressure is required. It also has few competitors when it pertains to the production of sizable hollow items which are resilient and inexpensive.There is a variety of products that are created by this process including large size water tanks, automobile products, intricate shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the versatility in terms of type and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Clarkston MI 48346, 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 rotocasting 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-Clarkston-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 Michigan 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 Clarkston Michigan 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 Procedure Components

This molding procedure has been used since early times for creatingvseverl product lines. Egyptians for example, used rotocasting systems in the making of ceramics. The Swiss were also working with this rotation format to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this method some time between 1940 and 1950. Considering that it was thought of to be a somewhat slow-moving approach, the procedure has however taken long to catch on

1. Mould preparation.
A predetermined volume of polymer in particle form is packed into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel substance. The coloration intended 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 type of plastic engineering.

Pre-heating of the oven starts, and it may 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 sealed and placed inside the oven.

2. The heating up and fusion phase.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per min. 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 component will lose stability and strength, making a faulty item. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the completed product.

3. Mould cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces slightly for ease of removal from the mould. This is an additional measure that depends upon a lot on the right timing, since quick cooling shrinks the material too quick, causing bending of the material.

4. The offloading or de-moulding phase.
When the component within te mold has cooled adequately, the molder taking care of the process can then remove the finalized product from the mold. The function is repeated from the start, supplying a series of similar products.

For more information on the different rotational molding options offered for the Clarkston MI 48346, 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 products

Local Resources

Process Example
Google Map