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

rotomolding-Kenmore-Rotational molding refers to a plastic production practice that generates hollow stress-free items. The procedure relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of shapes, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing procedures that no pressure is called for. It also has few competitors when it involves the manufacture of large size hollow items which are long lasting and inexpensive.There is a wide variety of products that are generated by this process including big water tanks, automobile materials, complex designed medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Kenmore WA 98028, 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 rotomoulding 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-Kenmore-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 Kenmore 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 Procedure in Detail

This molding method has been used since earlier times for creatingvseverl product lines. Egyptians for instance, used rotocasting systems in the producing of ceramics. The Swiss were also utilizing this rotation approach to generate hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The technique has however taken long to take affect because it was thought of to be a rather slow-moving process

1. Mold prep work.
A predetermined measure of polymer in particle form is loaded into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel material. The colour wanted for the end 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 format of plastic assembly.

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 inserted inside the oven.

2. The heat and fusion procedure.
Once inside the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 rotations per sixty seconds. The main thing that is vital at this point is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and durability, creating a weak item. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, 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 can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks slightly for ease of extraction from the mould. This is one more procedure that relies a lot on the correct timing, since rapid cooling decreases the material too fast, causing warping of the material.

4. The discharging or de-moulding phase.
As soon as the component inside te mould has cooled successfully, the molder managing the procedure can then extract the finished product from the mould. The technique is repeated from the beginning, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Kenmore WA 98028 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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