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

rotational molding-Ashford-Rotational moulding refers to a plastic manufacturing solution that creates hollow stress-free products. The technique utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have many different designs, colors and sizes. This method is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing techniques that no pressure is needed. It also has few rivals when it comes down to the creation of sizable hollow items which are durable and inexpensive.There is a wide variety of products that are generated by this process including big water tanks, automobile products, intricate molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in terms of design 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 Ashford CT 6278, 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

Plastic Molding-Ashford-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 Ashford 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 Rotomoulding Process in Detail

This molding system has been used since early times for creatingvseverl product lines. Egyptians as an example, worked with roto-molding systems in the producing of ceramics. The Swiss were also working with this rotation approach to create hollow chocolate eggs. Some plastic product lines in the USA were created using this method some time between 1940 and 1950. Because it was regarded to be a somewhat slow system, the procedure has however taken long to catch on

1. Mould preparation.
A predetermined quantity of polymer in powder form is packed into a hollow mold. The mold is usually made of cast aluminium or sheet steel substance. The colour chosen for the finished product 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 format of plastic engineering.

Preheating of the oven starts, and it may 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 sealed and positioned within the oven.

2. The heat and fusion step.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly, about 20 rotations per minute. 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 product will lose value and strength, generating a weak item. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which produces bubbles in the completed product.

3. Mould cooling.
When the component has completely spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks slightly for ease of removal from the mold. This is yet another procedure that depends a lot on the correct timing, since quick cooling reduces the material too quickly, causing warping of the product.

4. The un-loading or de-molding step.
Once the product inside te mold has cooled correctly, the person taking care of the operation can then extract the completed product from the mould. The function is repeated from the beginning, supplying a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Ashford CT 6278 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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