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

rotomoulding-Albany-Rotational molding pertains to a plastic production practice that produces hollow stress-free products. The process relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have a variety of designs, sizes and colors. This procedure is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few competitors when it comes to the manufacture of sizable hollow products which are resilient and inexpensive.There is a wide range of products that are created by this process including large water tanks, automobile materials, complex designed medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Albany CA 94706, 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

Plastic Manufacturing-Albany-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 California 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 Albany California 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 Components

This moulding process has been used since ancient times for creatingvseverl items. Egyptians for example, utilized rotocasting methods in the producing of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this procedure some time between 1940 and 1950. The system has however taken long to catch on because it was looked at to be a pretty slow-moving process

1. Mold fitting.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel substance. The color needed for the final item 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.

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 mold with the powdered polymer is then sealed and placed inside the oven.

2. The heat and fusion phase.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The turning is done gradually, about 20 revolutions per minute. One thing that is critical at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the component will lose stability and strength, generating a poor item. If it is removed from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finalized product line.

3. Mold cooling.
When the component has sufficiently spent the enough 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 creates a cool mist. When the product cools, it shrinks a little for ease of removal from the mould. This is an additional step that relies a lot on the right timing, since quick cooling decreases the material too fast, causing bending of the product.

4. The un-loading or de-molding step.
When the component inside te mold has cooled effectively, the person handling the procedure can then take out the finished product from the mold. The procedure is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Albany CA 94706 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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