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

rotomolding-Lakewood-Rotational moulding refers to a plastic production procedure that generates hollow stress-free products. The technique utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have several shapes, colors and sizes. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods in that no pressure is called for. It also has few contenders when it involves the production of sizable hollow products which are resilient and inexpensive.There is a wide range of product lines that are generated by this process including large size water tanks, automobile items, complex molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in regards to 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 Lakewood WA 98439, 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 Molding-Lakewood-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 Lakewood 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 Rotomoulding Method Components

This molding method has been used since earlier times for creatingvseverl product lines. Egyptians for example, employed rotocasting procedures in the creating of ceramics. The Swiss were also applying this rotation approach to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. Considering that it was looked at to be a basically slow approach, the method has however taken long to catch on

1. Mould preparation.
A fixed volume of polymer in grain form is loaded into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The colour desired for the end goods is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic manufacturing.

Preheating of the oven follows, 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 locked and inserted within the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done gradually, about 20 rotations per minute. One thing that is vital at this point is the period of time the mould will spend inside the oven. If it stays to long, the product will lose stability and durability, producing a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which develops bubbles in the finalized product.

3. Mold cooling down.
When the component has completely spent the right amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces a little for ease of removal from the mould. This is another procedure that depends 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.
Once the material within te mould has cooled correctly, the person taking care of the procedure can then remove the finished item from the mould. The procedure is repeated from the start, supplying a number of identical products.

For more information on the different rotational rotomolding options offered for the Lakewood WA 98439 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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