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

rotomolding-Harrisonville-Rotational molding refers to a plastic production solution that makes hollow stress-free products. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different designs, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing processes in that no pressure is involved. It also has few competitors when it comes to the manufacture of sizable hollow products which are durable and inexpensive.There is a wide range of product lines that are developed by this process including large size water tanks, automobile products, sophisticated molded medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Harrisonville MO 64701, 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 Products-Harrisonville-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 Missouri 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 Harrisonville Missouri 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 in Detail

This moulding technique has been used since ancient times for creatingvseverl products. Egyptians as an example, applied rotomoulding methods in the manufacturing of ceramics. The Swiss were also working with this rotation style to generate hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. Considering that it was thought of to be a very slow procedure, the technique has however taken long to become popular

1. Mold fitting.
A predetermined volume of polymer in particle form is filled into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The color needed for the finished goods 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 format of plastic production.

Preheating of the oven follows, and it may 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 locked and installed inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done gradually, about 20 rotations per sixty seconds. One thing that is critical at this point is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, creating a poor product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finalized product line.

3. Mold cooling.
When the product has completely spent the correct 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 component cools, it shrinks a little for ease of extraction from the mould. This is another procedure that relies a lot on the correct timing, since quick cooling shrinks the material too rapidly, causing bending of the material.

4. The unloading or de-molding phase.
As soon as the product inside te mould has cooled adequately, the molder managing the procedure can then take out the completed product from the mold. The function is repeated from the start, providing a series of similar products.

For more information on the different rotational molding options offered for the Harrisonville MO 64701 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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