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

rotomolding-Camden-Rotational moulding pertains to a plastic production technique that generates hollow stress-free product lines. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different forms, colors and sizes. This method is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing processes that no pressure is required. It also has few rivals when it comes down to the creation of large hollow items which are resilient and inexpensive.There is a wide variety of products that are created by this process including big water tanks, automobile products, intricate shaped medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Camden ME 4843, 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

Plastic Manufacturing-Camden-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 Maine 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 Camden Maine 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 method has been used since earlier times for creatingvseverl items. Egyptians for instance, employed rotational molding techniques in the creating of ceramics. The Swiss were also employing this rotation approach to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this method some time between 1940 and 1950. Since it was looked at to be a fairly slow-moving method, the method has however taken long to catch on

1. Mold readying.
A predetermined volume of polymer in particle form is packed into a hollow mold. The mold is usually built from cast aluminium or sheet steel component. The colour needed for the end goods 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 type of plastic production.

Pre-heating of the oven follows, 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 secured and placed into the oven.

2. The heat and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The rotation is done slowly, about 20 spins per min. Something that is important at this moment is the amount of time the mold will spend within the oven. If it overstays, the material will lose value and strength, creating a faulty product. If it is taken out from the oven too early, the polymer will not have liquefied properly, which develops bubbles in the finished product.

3. Mold cooling down.
When the material 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 component cools, it reduces a little for ease of removal from the mould. This is one more procedure that depends upon a lot on the ideal timing, since quick cooling reduces the material too quick, causing warping of the material.

4. The removing or de-moulding phase.
As soon as the product inside te mould has cooled effectively, the molder handling the process can then take out the completed product from the mold. The technique is repeated from the start, providing a number of similar products.

For more information on the different rotational rotomolding options offered for the Camden ME 4843 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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