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

rotocasting-Washington-Rotational moulding pertains to a plastic production solution that makes hollow stress-free products. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying designs, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few rivals when it involves the creation of large size hollow products which are resilient and inexpensive.There is a wide range of items that are developed by this process including large water tanks, automobile materials, sophisticated designed medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Washington CT 6793, 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-Washington-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 Connecticut 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 Washington Connecticut 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 Components

This moulding operation has been used since earlier times for creatingvseverl product lines. Egyptians for instance, applied rotational molding techniques in the making of ceramics. The Swiss were also applying this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were made using this method some time between 1940 and 1950. The process has however taken long to take affect because it was considered to be a pretty slow process

1. Mould prep work.
A predetermined measure of polymer in powder form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel component. The colour chosen for the end item is pre compounded into the polymer. The most commonly 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 can 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 locked and installed within the oven.

2. The heat and fusion procedure.
Once within the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done gradually, about 20 rotations per min. Something that is vital at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose stability and durability, creating a faulty item. If it is removed from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the finished product line.

3. Mold cooling down.
When the component has sufficiently spent the correct amount 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 component cools, it reduces slightly for ease of extraction from the mould. This is one more measure that depends upon a lot on the right timing, since rapid cooling shrinks the material too quick, causing bending of the item.

4. The unloading or de-moulding step.
As soon as the component within te mould has cooled properly, the person managing the process can then extract the finalized product from the mold. The technique is repeated from the start, making a number of identical products.

For more information on the different rotational rotomolding options offered for the Washington CT 6793 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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