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

rotomoulding-Wallace-Rotational molding refers to a plastic production solution that generates hollow stress-free product lines. The function utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying forms, sizes and colors. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing methods because no pressure is involved. It also has few rivals when it pertains to the creation of large hollow products which are long-lasting and inexpensive.There is a variety of product lines that are developed by this process including big water tanks, automobile items, intricate shaped medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in regards to 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 Wallace MI 49893, 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 rotocasting 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-Wallace-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 Wallace 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 Components

This moulding process has been used since early times for creatingvseverl products. Egyptians for instance, used rotomoulding systems in the manufacturing of ceramics. The Swiss were also working with this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this method some time between 1940 and 1950. Since it was regarded to be a fairly slow-moving technique, the method has however taken long to become popular

1. Mold preparation.
A predetermined amount of polymer in particle form is loaded into a hollow mould. The mould is usually made of cast aluminium or sheet steel material. The coloring desired for the end goods 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 design of plastic engineering.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then sealed and put into the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly and gradually, about 20 spins per minute. The main thing that is vital at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose stability and strength, generating a poor item. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finalized product line.

3. Mold cooling.
When the material has completely spent the right amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mold. This is one more procedure that relies a lot on the right timing, since rapid cooling decreases the material too quick, causing warping of the product.

4. The unloading or de-molding phase.
Once the component inside te mold has cooled properly, the person taking care of the process can then take out the finalized product from the mould. The technique is repeated from the beginning, giving a series of identical items.

For more information on the different rotational molding options offered for the Wallace MI 49893, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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