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

rotocasting-Union City-Rotational molding pertains to a plastic production solution that creates hollow stress-free items. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have many different designs, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing processes that no pressure is needed. It also has few rivals when it comes to the creation of large hollow items which are long lasting and inexpensive.There is a wide variety of products that are created by this process including large water tanks, automobile materials, intricate shaped medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Union City MI 49094, 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

Custom Molding-Union City-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 Union City 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 Rotomolding Procedure Components

This molding process has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized rotomoulding solutions in the of ceramics. The Swiss were also using this rotation style to create hollow chocolate eggs. Some plastic product lines in the USA were made using this technique some time between 1940 and 1950. Considering that it was regarded to be a fairly slow technique, the approach has however taken long to catch on

1. Mold prep work.
A predetermined quantity of polymer in grain form is filled into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel material. The coloration preferred for the finished goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic manufacturing.

Pre-heating 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 installed within the oven.

2. The heat and fusion phase.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly and gradually, about 20 spins per minute. Something that is crucial at this moment is the period of time the mold will spend within the oven. If it stays to long, the material will lose stability and strength, creating a poor product. If it is taken out from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the finished product line.

3. Mold cooling down.
When the product has sufficiently spent the right 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 a cool mist. When the component cools, it shrinks slightly for ease of removal from the mould. This is one more procedure that relies a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the material.

4. The unloading or de-molding step.
Once the material inside te mould has cooled successfully, the molder handling the procedure can then take out the finished item from the mould. The process is repeated from the beginning, giving a series of similar product lines.

For more information on the different rotational molding options offered for the Union City MI 49094, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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