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

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

The function that makes this unique from other plastic manufacturing procedures in that no pressure is called for. It also has few contenders when it pertains to the production of large hollow products which are resilient and inexpensive.There is a wide range of products that are produced by this process including big water tanks, automobile materials, sophisticated molded medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in terms of 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 Marcellus MI 49067, 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 roto-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

Custom Molding-Marcellus-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 Marcellus 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 Procedure Components

This molding procedure has been used since earlier times for creatingvseverl items. Egyptians for instance, employed rotational molding techniques in the manufacturing of ceramics. The Swiss were also working with this rotation style to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was considered as being a very slow process

1. Mould readying.
A fixed volume of polymer in powder form is filled into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel substance. The color tone wanted for the final 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 design of plastic assembly.

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 mould with the powdered polymer is then locked and installed into the oven.

2. The heat and fusion process.
Once within the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 rotations per minute. Something that is essential at this moment is the amount of time the mould will spend within the oven. If it overstays, the component will lose stability and strength, producing a faulty item. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which creates bubbles in the finished item.

3. Mould cooling.
When the material has sufficiently spent the enough 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 creates a cool mist. When the material cools, it shrinks a little for ease of extraction from the mould. This is another measure that depends a lot on the right timing, since rapid cooling decreases the material too fast, causing warping of the item.

4. The unloading or de-molding phase.
When the product inside te mould has cooled correctly, the molder managing the process can then extract the finished item from the mold. The function is repeated from the beginning, providing a series of similar products.

For more information on the different rotational molding options offered for the Marcellus MI 49067, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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