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

rotational molding-Cave Junction-Rotational moulding refers to a plastic production practice that makes hollow stress-free product lines. The method depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have 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 types.

The attribute that makes this unique from other plastic manufacturing processes because no pressure is involved. It also has few competitors when it pertains to the production of large hollow items which are long lasting and inexpensive.There is a wide variety of items that are produced by this process including large water tanks, automobile items, intricate molded medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to style 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 Cave Junction OR 97523, 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 Molded-Cave Junction-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 Oregon 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 Cave Junction Oregon 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 in Detail

This molding technique has been used since early times for creatingvseverl products. Egyptians for instance, applied rotomoulding procedures in the making of ceramics. The Swiss were also employing this rotation approach to create hollow chocolate eggs. Some plastic product lines in the USA were created using this technique some time between 1940 and 1950. The procedure has however taken very long to catch on because it was thought of to be a somewhat slow process

1. Mold fitting.
A predetermined measure of polymer in grain form is loaded into a hollow mold. The mould is usually built from cast aluminium or sheet steel material. The color tone desired for the end 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 style of plastic engineering.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then secured and put into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done gradually, about 20 rotations per sixty seconds. Something that is important at this moment is the amount of time the mold will spend within the oven. If it stays to long, the component will lose stability and durability, generating a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which creates bubbles in the completed item.

3. Mold cooling down.
When the product has completely spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mould. This is one more measure that depends a lot on the right timing, since quick cooling decreases the material too quick, causing warping of the material.

4. The discharging or de-moulding phase.
Once the material inside te mold has cooled successfully, the person handling the procedure can then remove the finalized product from the mould. The function is repeated from the beginning, supplying a number of identical products.

For more information on the different rotational rotomolding options offered for the Cave Junction OR 97523 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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