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

rotocasting-Halifax-Rotational molding refers to a plastic manufacturing method that generates hollow stress-free product lines. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of designs, colors and sizes. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods in that no pressure is involved. It also has few competitors when it pertains to the production of large size hollow products which are long-lasting and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile materials, sophisticated shaped medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to type 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 Halifax VA 24558, 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 roto-molding 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-Halifax-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 Virginia 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 Halifax Virginia 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 Procedure in Detail

This molding technique has been used since early times for creatingvseverl products. Egyptians for instance, worked with rotomoulding solutions in the producing of ceramics. The Swiss were also employing this rotation style to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this approach some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at as being a pretty slow-moving process

1. Mold preparation.
A predetermined amount of polymer in powder form is filled into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The color chosen for the end goods 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 format of plastic assembly.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and positioned inside the oven.

2. The heating and fusion step.
Once within the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The turning is done slowly and gradually, about 20 spins per min. Something that is vital at this moment is the period of time the mould will spend within the oven. If it stays to long, the material will lose stability and strength, producing a poor item. If it is extracted from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the completed product.

3. Mold cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it shrinks slightly for ease of removal from the mold. This is yet another step that relies a lot on the ideal timing, since quick cooling shrinks the material too fast, causing bending of the product.

4. The un-loading or de-moulding step.
As soon as the component within te mold has cooled properly, the molder handling the procedure can then take out the finalized product from the mould. The procedure is repeated from the beginning, giving a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Halifax VA 24558 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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