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

rotational molding-Frederica-Rotational moulding refers to a plastic manufacturing method that generates hollow stress-free items. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have many different forms, sizes and colors. This method is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this different from other plastic manufacturing techniques in that no pressure is needed. It also has few competitors when it pertains to the production of sizable hollow items which are long-lasting and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile items, sophisticated 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 develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Frederica DE 19946, 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

Custom Molding-Frederica-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 Delaware 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 Frederica Delaware 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 technique has been used since early times for creatingvseverl product lines. Egyptians for instance, applied roto-molding procedures in the of ceramics. The Swiss were also making use of this rotation method to generate hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. The technique has however taken long to catch on because it was looked at to be a very slow-moving process

1. Mould readying.
A fixed quantity of polymer in grain form is loaded into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel material. The color preferred for the end 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 manufacturing.

Pre-heating 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 secured and inserted within the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done slowly, about 20 revolutions per minute. The main thing that is vital at this moment is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and durability, making a poor item. If it is taken out from the oven too early, the polymer will not have liquefied properly, which produces bubbles in the finished product.

3. Mould cooling.
When the material has sufficiently spent the correct 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 generates a cool mist. When the product cools, it reduces somewhat for ease of removal from the mould. This is yet another measure that depends upon a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the product.

4. The un-loading or de-moulding step.
When the component inside te mold has cooled correctly, the molder taking care of the process can then extract the completed product from the mould. The function is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Frederica DE 19946 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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