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

rotational moulding-Demarest-Rotational moulding pertains to a plastic manufacturing solution that generates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of shapes, colors and sizes. This procedure is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is required. It also has few contenders when it pertains to the production of large size hollow products which are durable and inexpensive.There is a wide variety of items that are generated by this process including big water tanks, automobile products, intricate molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in terms of design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Demarest NJ 7627, 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 rotomolding 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-Demarest-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 Demarest 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 Rotomolding Method Components

This moulding system has been used since ancient times for creatingvseverl product lines. Egyptians for instance, utilized rotocasting techniques in the manufacturing of ceramics. The Swiss were also making use of this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this method some time between 1940 and 1950. Because it was considered to be a somewhat slow procedure, the method has however taken long to become popular

1. Mold readying.
A predetermined volume of polymer in powder form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The coloration needed for the final goods is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic manufacturing.

Preheating 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 secured and inserted inside the oven.

2. The heating and fusion step.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 revolutions per minute. The main thing that is crucial at this moment is the period of time the mold will spend inside the oven. If it stays to long, the component will lose value and durability, generating a poor product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which generates bubbles in the finalized product.

3. Mold cooling.
When the material has completely 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 creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mould. This is yet another step that depends a lot on the ideal timing, since rapid cooling decreases the material too fast, causing bending of the product.

4. The offloading or de-moulding phase.
As soon as the component inside te mould has cooled correctly, the person taking care of the procedure can then extract the finalized product from the mold. The procedure is repeated from the start, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Demarest NJ 7627 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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