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

rotocasting-Carney-Rotational moulding pertains to a plastic production technique that generates hollow stress-free product lines. The function relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of designs, sizes and colors. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing methods because no pressure is involved. It also has few competitors when it comes down to the manufacture of sizable hollow items which are durable and inexpensive.There is a wide variety of product lines that are generated by this process including large water tanks, automobile materials, intricate shaped medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in regards to type 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 Carney MI 49812, 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

Plastic Manufacturing-Carney-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 Carney 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 Method in Detail

This molding process has been used since early times for creatingvseverl products. Egyptians for instance, employed rotocasting procedures in the of ceramics. The Swiss were also using this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were made utilizing this procedure some time between 1940 and 1950. Since it was considered to be a very slow procedure, the method has however taken long to become popular

1. Mould prep work.
A predetermined amount of polymer in grain form is packed into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The coloring needed for the final item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

Preheating of the oven follows, 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 sealed and inserted inside the oven.

2. The heating and fusion process.
Once within the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly, about 20 revolutions per min. Something that is critical at this point is the amount of time the mold will spend inside the oven. If it stays to long, the product will lose stability and durability, creating a faulty item. If it is removed from the oven too early, the polymer will not have melted properly, which develops bubbles in the finalized product line.

3. Mold cooling.
When the component has completely spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it reduces a little for ease of extraction from the mould. This is an additional step that relies a lot on the ideal timing, since quick cooling decreases the material too fast, causing bending of the product.

4. The discharging or de-moulding phase.
As soon as the component inside te mould has cooled correctly, the molder handling the process can then extract the finalized product from the mould. The technique is repeated from the beginning, supplying a series of similar products.

For more information on the different rotational molding options offered for the Carney MI 49812, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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