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

rotomoulding-Alfred-Rotational moulding refers to a plastic production technique that produces hollow stress-free products. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have various shapes, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods because no pressure is called for. It also has few contenders when it comes down to the manufacture of large hollow items which are long lasting and inexpensive.There is a wide variety of items that are developed by this process including big water tanks, automobile materials, complex molded medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to type and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Alfred NY 14802, 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 Molded-Alfred-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 York 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 Alfred New York 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 technique has been used since earlier times for creatingvseverl items. Egyptians for instance, worked with rotomoulding systems in the making of ceramics. The Swiss were also applying this rotation technique to create hollow chocolate eggs. Some plastic product lines in the USA were developed using this approach some time between 1940 and 1950. The process has however taken long to take affect because it was looked at to be a moderately slow process

1. Mould prep work.
A fixed amount of polymer in particle form is packed into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel material. The coloration preferred for the final product 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 design of plastic production.

Pre-heating of the oven starts, and it may 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 inside the oven.

2. The heating and fusion process.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per sixty seconds. The main thing that is critical at this moment is the amount of time the mould will spend inside the oven. If it overstays, the product will lose value and strength, generating a weak item. If it is removed from the oven too early, the polymer will not have melted properly, which generates bubbles in the completed product.

3. Mold cooling down.
When the material has sufficiently spent the correct 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 a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is one more measure that depends a lot on the ideal timing, since rapid cooling shrinks the material too quickly, causing warping of the material.

4. The offloading or de-molding step.
Once the component within te mold has cooled adequately, the person managing the process can then take out the finished item from the mold. The process is repeated from the start, providing a series of exact products.

For more information on the different rotational molding options offered for the Alfred NY 14802 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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