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

rotomoulding-Lopez Island-Rotational moulding refers to a plastic manufacturing solution that generates hollow stress-free products. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different designs, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing methods that no pressure is involved. It also has few contenders when it pertains to the manufacture of large size hollow items which are durable and inexpensive.There is a wide variety of product lines that are produced by this process including large size water tanks, automobile materials, intricate shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to type 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 Lopez Island WA 98261, 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-Lopez Island-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 Washington 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 Lopez Island Washington 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 Process Components

This moulding method has been used since ancient times for creatingvseverl products. Egyptians as an example, utilized rotational molding methods in the creating of ceramics. The Swiss were also working with this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. Given that it was considered to be a very slow procedure, the procedure has however taken long to catch on

1. Mould preparation.
A fixed quantity of polymer in particle form is loaded into a hollow mould. The mould is usually built from cast aluminium or sheet steel substance. The color tone preferred for the finished product is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic manufacturing.

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 mould with the powdered polymer is then secured and placed inside the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done slowly, about 20 rotations per min. The main thing that is essential at this point is the period of time the mold will spend inside the oven. If it overstays, the product will lose stability and durability, making a faulty product. If it is extracted from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the finalized product line.

3. Mold cooling down.
When the material has sufficiently 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 generates a cool mist. When the product cools, it reduces a little for ease of extraction from the mold. This is yet another step that depends a lot on the correct timing, since rapid cooling reduces the material too fast, causing bending of the material.

4. The unloading or de-moulding phase.
When the product within te mould has cooled properly, the molder handling the procedure can then extract the completed product from the mold. The procedure is repeated from the beginning, making a series of exact products.

For more information on the different rotational rotomolding options offered for the Lopez Island WA 98261 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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