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

roto-molding-Odessa-Rotational moulding refers to a plastic production method that makes hollow stress-free items. The procedure depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have a wide range of shapes, colors and sizes. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing methods in that no pressure is needed. It also has few rivals when it comes down to the manufacture of sizable hollow products which are long lasting and inexpensive.There is a wide range of products that are created by this process including large water tanks, automobile products, sophisticated shaped medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style 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 Odessa MO 64076, 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 rotomolding 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-Odessa-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 Odessa 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 Rotomolding Process Components

This moulding process has been used since ancient times for creatingvseverl product lines. Egyptians for instance, worked with rotocasting systems in the of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic products in the USA were made using this method some time between 1940 and 1950. The system has however taken long to take affect because it was considered as being a somewhat slow process

1. Mould prep work.
A fixed measure of polymer in grain form is packed into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel material. The coloration needed for the finished product 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.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then locked and positioned into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly, about 20 spins per sixty seconds. One thing that is vital at this point is the period of time the mould will spend within the oven. If it stays to long, the product will lose stability and durability, making a weak item. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which creates bubbles in the finalized item.

3. Mould cooling down.
When the material has sufficiently spent the enough 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 product cools, it shrinks somewhat for ease of extraction from the mould. This is another step that relies a lot on the ideal timing, since quick cooling shrinks the material too rapidly, causing bending of the product.

4. The un-loading or de-moulding step.
When the component within te mould has cooled adequately, the person managing the process can then take out the completed item from the mould. The technique is repeated from the start, providing a series of similar items.

For more information on the different rotational molding options offered for the Odessa MO 64076 area, 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 manufacturing

Local Resources

Production Example
Google Map