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

rotational molding-Keego Harbor-Rotational moulding pertains to a plastic production method that produces hollow stress-free items. The function relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have several designs, sizes and colors. This procedure is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing procedures in that no pressure is needed. It also has few competitors when it comes down to the production of sizable hollow products which are resilient and inexpensive.There is a wide variety of product lines that are developed by this process including large water tanks, automobile products, sophisticated shaped medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to design 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 Keego Harbor MI 48320, 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 Molding-Keego Harbor-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 Keego Harbor 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 Rotomolding Process Components

This moulding system has been used since early times for creatingvseverl items. Egyptians for example, worked with rotomoulding methods in the making of ceramics. The Swiss were also applying this rotation method to make hollow chocolate eggs. Some plastic products in the USA were made using this approach some time between 1940 and 1950. Because it was considered to be a somewhat slow-moving approach, the procedure has however taken long to become popular

1. Mould preparation.
A predetermined measure of polymer in particle form is filled into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel component. The coloration wanted for the final product 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.

Preheating of the oven starts, and it can 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 locked and inserted into the oven.

2. The heating up and fusion phase.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done slowly, about 20 spins per sixty seconds. One thing that is essential at this point is the amount of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the finalized product.

3. Mold 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 component cools, it shrinks a little for ease of extraction from the mold. This is another step that depends upon a lot on the correct timing, since quick cooling decreases the material too quick, causing bending of the product.

4. The offloading or de-moulding step.
When the component inside te mold has cooled adequately, the person taking care of the procedure can then remove the completed item from the mold. The process is repeated from the start, giving a number of similar product lines.

For more information on the different rotational molding options offered for the Keego Harbor MI 48320, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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