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

rotational molding-Tuscumbia-Rotational moulding pertains to a plastic manufacturing technique that generates hollow stress-free products. The procedure depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have different shapes, colors and sizes. This procedure is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods in that no pressure is involved. It also has few rivals when it comes to the production of sizable hollow products which are long lasting and inexpensive.There is a wide variety of product lines that are generated by this process including large size water tanks, automobile items, complex shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Tuscumbia MO 65082, 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 roto-molding 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-Tuscumbia-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 Tuscumbia 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 Roto-Molding Procedure in Detail

This moulding procedure has been used since early times for creatingvseverl products. Egyptians as an example, employed rotocasting procedures in the manufacturing of ceramics. The Swiss were also applying this rotation style to create hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The procedure has however taken long to catch on because it was considered to be a somewhat slow-moving process

1. Mould readying.
A fixed quantity of polymer in grain form is loaded into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel material. The coloring desired for the final item 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 design of plastic production.

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

2. The heat and fusion procedure.
Once placed into the oven, the mould is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The turning is done slowly, about 20 rotations per min. The main thing that is critical at this point is the period of time the mould will spend within the oven. If it overstays, the product will lose value and durability, producing a poor product. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which develops bubbles in the finished product line.

3. Mould cooling.
When the product has sufficiently spent the right amount of time in the oven, it is then removed 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 reduces somewhat for ease of extraction from the mould. This is yet another procedure that depends a lot on the right timing, since rapid cooling reduces the material too quickly, causing bending of the product.

4. The discharging or de-moulding phase.
When the product within te mould has cooled effectively, the molder managing the process can then extract the completed item from the mould. The procedure is repeated from the start, supplying a series of identical product lines.

For more information on the different rotational molding options offered for the Tuscumbia MO 65082 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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