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

rotomoulding-West Baldwin-Rotational moulding pertains to a plastic production method that generates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece items that have many different designs, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques in that no pressure is needed. It also has few contenders when it comes to the creation of large size hollow products which are long-lasting and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile items, complex shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in West Baldwin ME 4091, 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 Molding-West Baldwin-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 West Baldwin 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 Roto-Molding Process Components

This molding technique has been used since ancient times for creatingvseverl products. Egyptians as an example, utilized rotational molding methods in the producing of ceramics. The Swiss were also making use of this rotation method to make hollow chocolate eggs. Some plastic products in the USA were created using this technique some time between 1940 and 1950. Because it was looked at to be a basically slow procedure, the method has however taken long to become popular

1. Mold preparation.
A predetermined amount of polymer in particle form is loaded into a hollow mould. The mould is usually made of cast aluminium or sheet steel material. The coloring preferred for the finished item 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 design of plastic manufacturing.

Pre-heating of the oven follows, 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 secured and inserted inside the oven.

2. The heating up and fusion phase.
Once inside 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 rotations per min. The main thing that is critical at this moment is the amount of time the mold will spend inside the oven. If it overstays, the component will lose value and strength, generating a poor item. If it is taken out from the oven too early, the polymer will not have flowed correctly, which develops bubbles in the completed item.

3. Mould cooling down.
When the product has completely 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 creates a cool mist. When the component cools, it reduces slightly for ease of removal from the mould. This is yet another measure that relies a lot on the right timing, since quick cooling decreases the material too rapidly, causing bending of the material.

4. The unloading or de-molding phase.
Once the product within te mould has cooled adequately, the person handling the procedure can then take out the finalized product from the mold. The technique is repeated from the beginning, giving a series of similar items.

For more information on the different rotational rotomolding options offered for the West Baldwin ME 4091 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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