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

rotomoulding-Marcus-Rotational moulding refers to a plastic manufacturing method that generates hollow stress-free products. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying forms, colors and sizes. This procedure is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this unique from other plastic manufacturing processes because no pressure is called for. It also has few rivals when it pertains to the manufacture of large size hollow items which are long lasting and inexpensive.There is a wide variety of items that are developed by this process including big water tanks, automobile materials, sophisticated shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of type 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 Marcus IA 51035, 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-Marcus-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 Iowa 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 Marcus Iowa 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 Process Components

This moulding system has been used since earlier times for creatingvseverl products. Egyptians for example, worked with rotational molding systems in the making of ceramics. The Swiss were also utilizing this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this method some time between 1940 and 1950. The process has however taken long to catch on because it was looked at to be a relatively slow process

1. Mold preparation.
A fixed volume of polymer in particle form is loaded into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel component. The coloring needed for the final goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic production.

Preheating of the oven follows, 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 locked and placed inside the oven.

2. The heating and fusion procedure.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The turning is done gradually, about 20 rotations per minute. Something that is essential at this point is the period of time the mold will spend inside the oven. If it stays to long, the material will lose stability and durability, generating a poor product. If it is extracted from the oven too early, the polymer will not have flowed properly, which creates 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 extracted for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks slightly for ease of extraction from the mold. This is an additional measure that depends upon a lot on the ideal timing, since rapid cooling decreases the material too quickly, causing bending of the item.

4. The removing or de-moulding phase.
When the material inside te mold has cooled properly, the molder handling the operation can then extract the finished item from the mould. The process is repeated from the beginning, giving a number of exact items.

For more information on the different rotational rotomolding options offered for the Marcus IA 51035 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 molding

Local Resources

Production Example
Google Map