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

rotocasting-Elmwood Park-Rotational moulding refers to a plastic manufacturing practice that makes hollow stress-free products. The method relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of shapes, colors and sizes. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing procedures because no pressure is involved. It also has few contenders when it involves the production of large hollow products which are long-lasting and inexpensive.There is a wide range of product lines that are generated by this process including large size water tanks, automobile products, intricate molded medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Elmwood Park NJ 7407, 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 rotomoulding 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-Elmwood Park-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 Elmwood Park 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 Process in Detail

This molding technique has been used since early times for creatingvseverl items. Egyptians for instance, employed roto-molding techniques in the manufacturing of ceramics. The Swiss were also applying this rotation style to make hollow chocolate eggs. Some plastic products in the USA were created using this approach some time between 1940 and 1950. The technique has however taken long to catch on because it was considered to be a relatively slow process

1. Mold preparation.
A predetermined volume of polymer in grain form is packed into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel component. The coloring needed for the end product 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 type of plastic manufacturing.

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

2. The heating up and fusion step.
Once inside the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The spinning is done gradually, about 20 rotations per sixty seconds. The main thing that is crucial at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the product will lose value and strength, producing a weak product. If it is extracted from the oven too early, the polymer will not have melted correctly, which creates bubbles in the completed item.

3. Mould cooling down.
When the component 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 somewhat for ease of removal from the mould. This is one more step that depends upon a lot on the correct timing, since quick cooling reduces the material too rapidly, causing warping of the product.

4. The unloading or de-molding step.
As soon as the material inside te mold has cooled correctly, the person managing the procedure can then extract the finished item from the mold. The technique is repeated from the beginning, making a series of similar products.

For more information on the different rotational rotomolding options offered for the Elmwood Park NJ 7407 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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