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

rotomoulding-Fraser-Rotational moulding pertains to a plastic manufacturing technique that generates hollow stress-free items. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have various designs, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is needed. It also has few contenders when it pertains to the production of large size hollow products which are long lasting and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile materials, sophisticated designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility 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 Fraser MI 48026, 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 rotomolding 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-Fraser-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 Fraser 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 Process in Detail

This molding technique has been used since early times for creatingvseverl products. Egyptians as an example, applied rotocasting solutions in the of ceramics. The Swiss were also working with this rotation type to generate hollow chocolate eggs. Some plastic product lines in the USA were developed using this technique some time between 1940 and 1950. The procedure has however taken long to catch on because it was looked at as being a rather slow-moving process

1. Mold readying.
A fixed measure of polymer in grain form is loaded into a hollow mold. The mold is usually made from cast aluminium or sheet steel material. The coloring chosen 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 assembly.

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 locked and installed inside the oven.

2. The heating and fusion process.
Once inside the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done gradually, about 20 spins per min. The main thing that is important at this moment is the amount of time the mould will spend inside the oven. If it overstays, the product will lose value and durability, creating a weak item. If it is taken out from the oven prematurely, the polymer will not have melted properly, which develops bubbles in the completed product line.

3. Mold cooling.
When the product has completely spent the enough of time in the oven, it is then removed 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 a little for ease of removal from the mould. This is another procedure that relies a lot on the ideal timing, since rapid cooling decreases the material too quick, causing bending of the product.

4. The discharging or de-molding step.
Once the material inside te mould has cooled successfully, the molder managing the operation can then take out the finalized item from the mould. The technique is repeated from the beginning, giving a series of similar items.

For more information on the different rotational molding options offered for the Fraser MI 48026, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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