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

rotomoulding-Wasco-Rotational moulding pertains to a plastic production solution that generates hollow stress-free items. The process relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of designs, sizes and colors. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing methods that no pressure is called for. It also has few contenders when it comes to the manufacture of large size hollow items which are long lasting and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile products, complex molded medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Wasco OR 97065, 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-Wasco-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 Wasco 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 Rotomoulding Method Components

This moulding technique has been used since ancient times for creatingvseverl product lines. Egyptians as an example, employed rotocasting techniques in the of ceramics. The Swiss were also applying this rotation design to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this procedure some time between 1940 and 1950. The procedure has however taken very long to catch on because it was looked at as being a somewhat slow-moving process

1. Mould prep work.
A fixed amount of polymer in powder form is packed into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel material. The coloration chosen for the finished goods 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 type of plastic assembly.

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

2. The heating and fusion process.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done slowly, about 20 spins per min. One thing that is vital at this moment is the period of time the mould will spend inside the oven. If it overstays, the component will lose value and durability, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the completed product line.

3. Mould cooling.
When the material has completely spent the right 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 a cool mist. When the component cools, it reduces a little for ease of removal from the mould. This is yet another step that relies a lot on the right timing, since rapid cooling decreases the material too quick, causing warping of the product.

4. The un-loading or de-molding step.
As soon as the component inside te mold has cooled correctly, the molder taking care of the process can then take out the finished item from the mould. The procedure is repeated from the start, making a series of similar products.

For more information on the different rotational rotomolding options offered for the Wasco OR 97065 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic molding

Local Resources

Production Example
Google Map