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

rotomolding-Oak Park-Rotational moulding pertains to a plastic production technique that makes hollow stress-free product lines. The procedure relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have many different forms, sizes and colors. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing methods in that no pressure is called for. It also has few contenders when it comes to the creation of sizable hollow products which are long-lasting and inexpensive.There is a wide range of product lines that are created by this process including large size water tanks, automobile products, intricate molded medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style 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 Oak Park MI 48237, 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 Molded-Oak Park-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 Oak Park 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 Process Components

This molding system has been used since early times for creatingvseverl product lines. Egyptians for example, used roto-molding procedures in the producing of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this approach some time between 1940 and 1950. Because it was regarded to be a fairly slow system, the process has however taken long to become popular

1. Mold readying.
A predetermined volume of polymer in grain form is loaded into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel substance. The coloring intended for the final product 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.

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 secured and placed inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 rotations per sixty seconds. The main thing that is essential at this point is the period of time the mold will spend inside the oven. If it stays to long, the material will lose value and durability, making a poor product. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the finished product line.

3. Mold cooling down.
When the product has completely spent the correct amount 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 generates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is an additional measure that relies a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the material.

4. The removing or de-moulding phase.
When the product within te mould has cooled correctly, the molder taking care of the procedure can then remove the finished product from the mould. The technique is repeated from the start, supplying a number of similar items.

For more information on the different rotational molding options offered for the Oak Park MI 48237, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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