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

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

The feature that makes this unique from other plastic manufacturing processes in that no pressure is involved. It also has few rivals when it comes to the production of large hollow items which are durable and inexpensive.There is a wide variety of items that are created by this process including big water tanks, automobile materials, sophisticated molded medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in terms of 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 Franklin NE 68939, 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 moulding 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-Franklin-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 Nebraska 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 Franklin Nebraska 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 Process in Detail

This molding operation has been used since earlier times for creatingvseverl items. Egyptians for instance, utilized rotocasting methods in the making of ceramics. The Swiss were also utilizing this rotation method to create hollow chocolate eggs. Some plastic products in the USA were made using this approach some time between 1940 and 1950. The procedure has however taken very long to take affect because it was considered as being a moderately slow-moving process

1. Mold fitting.
A fixed volume of polymer in powder form is filled into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel component. The coloration intended for the final item 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 format of plastic assembly.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then locked and installed within the oven.

2. The heating and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The spinning is done gradually, about 20 revolutions per minute. The main thing that is important at this moment is the period of time the mould will spend within the oven. If it overstays, the material will lose stability and strength, making a poor item. If it is taken out from the oven too early, the polymer will not have melted properly, which produces bubbles in the completed product line.

3. Mould cooling.
When the component has completely spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces somewhat for ease of extraction from the mould. This is another measure that relies a lot on the ideal timing, since quick cooling reduces the material too quickly, causing bending of the material.

4. The discharging or de-moulding phase.
Once the component inside te mold has cooled adequately, the person managing the process can then remove the finalized item from the mold. The function is repeated from the start, providing a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Franklin NE 68939 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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