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

rotomoulding-Cheboygan-Rotational moulding refers to a plastic manufacturing practice that makes hollow stress-free items. The procedure relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of forms, sizes and colors. This technique is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing methods in that no pressure is called for. It also has few rivals when it comes down to the manufacture of sizable hollow products which are durable and inexpensive.There is a variety of product lines that are created by this process including large size water tanks, automobile products, sophisticated molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Cheboygan MI 49721, 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 Products-Cheboygan-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 Cheboygan 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 Roto-Molding Method Components

This moulding system has been used since early times for creatingvseverl product lines. Egyptians for instance, used rotational molding systems in the making of ceramics. The Swiss were also using this rotation design to create hollow chocolate eggs. Some plastic items in the USA were created using this method some time between 1940 and 1950. Since it was thought of to be a very slow-moving procedure, the method has however taken long to become popular

1. Mould fitting.
A predetermined volume of polymer in grain form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The color tone desired for the end product is pre compounded into the polymer. The most commonly 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 can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then secured and put into the oven.

2. The heat and fusion process.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 revolutions per min. One thing that is crucial at this moment is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, making a faulty product. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which produces bubbles in the finalized product line.

3. Mold cooling.
When the product 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 generates a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mold. This is yet another step that depends a lot on the ideal timing, since rapid cooling decreases the material too fast, causing warping of the material.

4. The discharging or de-molding phase.
Once the material within te mold has cooled properly, the molder handling the process can then remove the finished 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 Cheboygan MI 49721, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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