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

rotocasting-Leonidas-Rotational moulding refers to a plastic production solution that produces hollow stress-free items. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of designs, colors and sizes. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing techniques because no pressure is called for. It also has few competitors when it pertains to the creation of large hollow products which are durable and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile products, complex designed medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Leonidas MI 49066, 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 moulding 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 Molded-Leonidas-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 Leonidas 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 in Detail

This molding system has been used since earlier times for creatingvseverl items. Egyptians for instance, applied rotational molding methods in the producing of ceramics. The Swiss were also applying this rotation method to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. Since it was considered to be a very slow procedure, the system has however taken long to catch on

1. Mould readying.
A predetermined measure of polymer in powder form is packed into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel component. The coloring chosen for the final goods 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 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 secured and put within the oven.

2. The heat and fusion process.
Once placed into the oven, the mould is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The turning is done slowly, about 20 spins per minute. One thing that is important at this point is the amount of time the mold will spend within the oven. If it overstays, the material will lose value and durability, producing a poor product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which generates bubbles in the completed product line.

3. Mould cooling down.
When the component has completely spent the correct amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks somewhat for ease of removal from the mould. This is yet another step that depends upon a lot on the ideal timing, since rapid cooling shrinks the material too fast, causing warping of the item.

4. The discharging or de-molding phase.
As soon as the component inside te mold has cooled correctly, the person managing the operation can then extract the finished item from the mould. The process is repeated from the start, supplying a series of similar items.

For more information on the different rotational molding options offered for the Leonidas MI 49066, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic molding

Local Resources

Process Example
Google Map