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

rotational moulding-Garden City-Rotational moulding refers to a plastic manufacturing technique that makes hollow stress-free product lines. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have many different shapes, colors and sizes. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing processes that no pressure is required. It also has few contenders when it comes to the creation of large size hollow items which are durable and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile products, intricate molded medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Garden City MO 64747, 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 rotational 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

Plastic Manufacturing-Garden 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 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 Garden City 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 Method in Detail

This moulding method has been used since ancient times for creatingvseverl items. Egyptians for example, worked with roto-molding techniques in the of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. Due to the fact that it was regarded to be a fairly slow approach, the system has however taken long to become popular

1. Mold readying.
A predetermined amount of polymer in powder form is loaded into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The colour preferred for the finished 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 to temperatures between 500-700F. The mould with the powdered polymer is then sealed and placed into the oven.

2. The heating up and fusion process.
Once placed into the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done gradually, about 20 spins per min. One thing that is crucial at this moment is the period of time the mould will spend inside the oven. If it stays to long, the product will lose stability and durability, generating a faulty item. If it is removed from the oven too early, the polymer will not have melted properly, which develops bubbles in the completed product.

3. Mould cooling.
When the component has sufficiently spent the right amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it shrinks slightly for ease of removal from the mould. This is another procedure that depends a lot on the right timing, since quick cooling shrinks the material too fast, causing warping of the item.

4. The removing or de-molding phase.
When the product inside te mold has cooled correctly, the molder managing the process can then take out the finalized item from the mould. The procedure is repeated from the beginning, giving a series of identical products.

For more information on the different rotational molding options offered for the Garden City MO 64747 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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