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

roto-molding-Hesperia-Rotational moulding refers to a plastic production technique that creates hollow stress-free items. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of forms, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing processes that no pressure is required. It also has few rivals when it comes down to the creation of large size hollow items which are durable and inexpensive.There is a variety of items that are produced by this process including big water tanks, automobile materials, sophisticated designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in regards to style 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 Hesperia MI 49421, 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

Custom Molding-Hesperia-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 Hesperia 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 Method Components

This moulding process has been used since early times for creatingvseverl items. Egyptians as an example, worked with rotational molding solutions in the creating of ceramics. The Swiss were also using this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this procedure some time between 1940 and 1950. The process has however taken long to catch on because it was thought of as being a very slow-moving process

1. Mould fitting.
A fixed volume of polymer in grain form is packed into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel component. The colour desired for the end product is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic assembly.

Preheating 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 installed into the oven.

2. The heating up and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The spinning is done slowly, about 20 rotations per sixty seconds. One 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 material will lose stability and durability, making a weak item. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which generates bubbles in the finalized item.

3. Mould cooling.
When the material has completely 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 extraction from the mould. This is one more step that depends upon a lot on the ideal timing, since rapid cooling reduces the material too quickly, causing warping of the product.

4. The offloading or de-molding step.
Once the component inside te mold has cooled properly, the person taking care of the operation can then extract the completed product from the mould. The procedure is repeated from the beginning, giving a series of similar items.

For more information on the different rotational molding options offered for the Hesperia MI 49421, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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