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

roto-molding-Riverton-Rotational molding pertains to a plastic manufacturing technique that creates hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of designs, colors and sizes. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing procedures that no pressure is involved. It also has few contenders when it pertains to the manufacture of sizable hollow items which are durable and inexpensive.There is a variety of products that are developed by this process including large water tanks, automobile products, intricate shaped medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to style and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Riverton NJ 8076, 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 rotocasting 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-Riverton-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 New Jersey 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 Riverton New Jersey 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 Procedure in Detail

This moulding operation has been used since earlier times for creatingvseverl product lines. Egyptians for example, used rotomoulding solutions in the manufacturing of ceramics. The Swiss were also applying this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this technique some time between 1940 and 1950. Due to the fact that it was looked at to be a fairly slow-moving method, the process has however taken long to become popular

1. Mold preparation.
A fixed quantity of polymer in powder form is filled into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel substance. The colour intended for the end 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 style of plastic assembly.

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 secured and installed inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done slowly, about 20 revolutions per min. The main thing that is critical at this point is the amount of time the mould will spend within the oven. If it overstays, the material will lose stability and strength, generating a poor product. If it is taken out from the oven too early, the polymer will not have melted properly, which develops bubbles in the finalized item.

3. Mould cooling down.
When the material has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it shrinks a little for ease of extraction from the mould. This is another step that depends a lot on the correct timing, since quick cooling shrinks the material too quickly, causing bending of the item.

4. The removing or de-molding step.
Once the component within te mould has cooled adequately, the molder managing the process can then remove the completed item from the mould. The process is repeated from the start, giving a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Riverton NJ 8076 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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