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

rotocasting-Crestline-Rotational moulding pertains to a plastic production technique that produces hollow stress-free items. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have varying shapes, sizes and colors. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing procedures in that no pressure is required. It also has few contenders when it comes to the manufacture of large hollow products which are long lasting and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile materials, sophisticated molded medical products, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in terms of style 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 Crestline CA 92325, 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-Crestline-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 Crestline 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 Process in Detail

This moulding operation has been used since ancient times for creatingvseverl product lines. Egyptians for instance, utilized rotational molding systems in the making of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic product lines in the USA were developed using this approach some time between 1940 and 1950. The process has however taken very long to catch on because it was thought of to be a very slow process

1. Mold preparation.
A predetermined volume of polymer in powder form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel substance. The color tone chosen for the finished 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 type of plastic manufacturing.

Preheating 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 placed inside the oven.

2. The heating and fusion step.
Once inside the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly, about 20 spins per min. One thing that is vital at this point is the amount of time the mold will spend within the oven. If it overstays, the product will lose value and strength, producing a poor item. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the finished product.

3. Mold cooling down.
When the product has sufficiently spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mould. This is yet another procedure that relies a lot on the right timing, since rapid cooling reduces the material too rapidly, causing bending of the item.

4. The offloading or de-molding phase.
Once the material within te mould has cooled correctly, the person managing the procedure can then remove the completed product from the mould. The procedure is repeated from the beginning, supplying a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Crestline CA 92325 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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