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

rotomolding-Sebec-Rotational moulding refers to a plastic manufacturing technique that produces hollow stress-free product lines. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have a variety of designs, sizes and colors. This procedure is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this different from other plastic manufacturing processes that no pressure is required. It also has few competitors when it pertains to the manufacture of sizable hollow products which are long lasting and inexpensive.There is a wide range of product lines that are developed by this process including big water tanks, automobile materials, intricate shaped medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Sebec ME 4481, 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 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 Products-Sebec-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 Sebec 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 Components

This moulding system has been used since earlier times for creatingvseverl products. Egyptians as an example, used rotocasting systems in the creating of ceramics. The Swiss were also utilizing this rotation design to generate hollow chocolate eggs. Some plastic product lines in the USA were made using this technique some time between 1940 and 1950. Considering that it was viewed to be a basically slow-moving procedure, the procedure has however taken long to become popular

1. Mold prep work.
A predetermined amount of polymer in powder form is loaded into a hollow mold. The mold is usually built from cast aluminium or sheet steel substance. The color needed for the finished 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 type of plastic engineering.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then sealed and positioned into the oven.

2. The heating and fusion process.
Once placed into the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done slowly, about 20 revolutions per minute. The main thing that is essential at this point is the amount of time the mould will spend within the oven. If it overstays, the product will lose stability and strength, producing a poor product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finished product line.

3. Mold cooling.
When the material has completely spent the enough 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 material cools, it reduces slightly for ease of removal from the mold. This is an additional step that relies a lot on the ideal timing, since rapid cooling reduces the material too fast, causing bending of the item.

4. The offloading or de-molding phase.
When the material within te mould has cooled correctly, the molder taking care of the procedure can then extract the finalized product from the mold. The function is repeated from the beginning, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Sebec ME 4481 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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