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

rotomolding-Ludlow-Rotational moulding refers to a plastic production practice that generates hollow stress-free products. The procedure depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have various designs, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing procedures that no pressure is called for. 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 variety of items that are produced by this process including large size water tanks, automobile products, intricate shaped medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of design and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Ludlow MO 64656, 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 rotomoulding 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-Ludlow-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 Ludlow 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 Components

This moulding procedure has been used since ancient times for creatingvseverl products. Egyptians for instance, utilized rotocasting techniques in the producing of ceramics. The Swiss were also applying this rotation approach to make hollow chocolate eggs. Some plastic items in the USA were made using this approach some time between 1940 and 1950. The system has however taken very long to catch on because it was looked at as being a somewhat slow-moving process

1. Mould readying.
A fixed volume of polymer in particle form is loaded into a hollow mould. The mould is usually built from cast aluminium or sheet steel component. The coloration chosen 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 format of plastic assembly.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then locked and put within the oven.

2. The heat and fusion process.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly, about 20 rotations per minute. One thing that is important at this point is the period of time the mold will spend inside the oven. If it overstays, the component will lose stability and strength, producing a faulty item. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the finished item.

3. Mold cooling.
When the component has sufficiently 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 creates a cool mist. When the material cools, it shrinks slightly for ease of extraction from the mould. This is one more step that depends upon a lot on the right timing, since rapid cooling shrinks the material too quickly, causing bending of the material.

4. The un-loading or de-moulding step.
As soon as the material within te mold has cooled adequately, the person managing the process can then remove the finalized product from the mould. The technique is repeated from the beginning, providing a number of similar items.

For more information on the different rotational molding options offered for the Ludlow MO 64656 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 custom molded

Local Resources

Production Example
Google Map