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

rotocasting-Derby Line-Rotational moulding refers to a plastic production solution that generates hollow stress-free product lines. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different designs, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques in that no pressure is called for. It also has few contenders when it pertains to the creation of sizable hollow products which are resilient and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile products, sophisticated molded medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of style and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Derby Line VT 5830, 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

Custom Molded-Derby Line-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 Vermont 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 Derby Line Vermont 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 procedure has been used since ancient times for creatingvseverl products. Egyptians for example, worked with rotomoulding methods in the creating of ceramics. The Swiss were also applying this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. The process has however taken very long to take affect because it was considered as being a relatively slow process

1. Mold fitting.
A fixed amount of polymer in powder form is filled into a hollow mold. The mould is usually made from cast aluminium or sheet steel material. The color tone desired for the final goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then sealed and inserted within the oven.

2. The heating up and fusion process.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 spins per sixty seconds. The main thing that is vital at this point is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and durability, producing a poor item. If it is removed from the oven too early, the polymer will not have melted correctly, which generates bubbles in the completed product line.

3. Mould cooling down.
When the material has sufficiently spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces slightly for ease of extraction from the mould. This is one more step that depends upon a lot on the right timing, since rapid cooling shrinks the material too fast, causing bending of the product.

4. The unloading or de-molding step.
As soon as the product inside te mould has cooled adequately, the molder taking care of the process can then take out the finalized item from the mold. The procedure is repeated from the beginning, supplying a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Derby Line VT 5830 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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