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

rotocasting-Windsor-Rotational molding pertains to a plastic production method that produces hollow stress-free product lines. The method relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different forms, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing procedures because no pressure is needed. It also has few competitors when it pertains to the production of large hollow items which are durable and inexpensive.There is a wide range of items that are developed by this process including large water tanks, automobile materials, complex shaped medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of design and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Windsor CA 95492, 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

Plastic Manufacturing-Windsor-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 Windsor 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 Rotomoulding Method in Detail

This molding procedure has been used since early times for creatingvseverl products. Egyptians as an example, used roto-molding techniques in the of ceramics. The Swiss were also applying this rotation style to create hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this method some time between 1940 and 1950. The process has however taken long to take affect because it was looked at as being a somewhat slow-moving process

1. Mould readying.
A fixed amount of polymer in particle form is packed into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel material. The coloration desired 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 style of plastic engineering.

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

2. The heating and fusion process.
Once inside the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done gradually, about 20 revolutions per min. Something that is important at this point is the period of time the mould will spend inside the oven. If it overstays, the material will lose stability and durability, creating a weak product. If it is removed from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the finished product.

3. Mould cooling down.
When the product has sufficiently spent the right amount 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 a cool mist. When the material cools, it reduces slightly for ease of removal from the mould. This is yet another procedure that depends upon a lot on the ideal timing, since rapid cooling decreases the material too quick, causing bending of the item.

4. The offloading or de-molding step.
Once the material inside te mould has cooled correctly, the molder handling the operation can then take out the finished item from the mould. The procedure is repeated from the beginning, providing a number of identical items.

For more information on the different rotational rotomolding options offered for the Windsor CA 95492 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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