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

rotomolding-Globe-Rotational molding refers to a plastic manufacturing technique that creates hollow stress-free products. The method uses high temperatures and bi axial rotation to come up with seamless, one piece products that have many different shapes, sizes and colors. This procedure is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing methods that no pressure is required. It also has few competitors when it comes to the production of sizable hollow products which are durable and inexpensive.There is a variety of products that are generated by this process including large water tanks, automobile items, sophisticated molded medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in regards to design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Globe AZ 85501, 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-Globe-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 Arizona 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 Globe Arizona 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 Method Components

This molding operation has been used since early times for creatingvseverl items. Egyptians for instance, employed rotomoulding methods in the creating of ceramics. The Swiss were also utilizing this rotation style to generate hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this method some time between 1940 and 1950. The system has however taken long to catch on because it was considered as being a very slow-moving process

1. Mold prep work.
A fixed volume of polymer in powder form is packed into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel material. The coloring intended for the final product 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 production.

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

2. The heat and fusion process.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per minute. Something that is important at this point is the period of time the mold will spend inside the oven. If it stays to long, the component will lose value and durability, producing a faulty item. If it is removed from the oven too early, the polymer will not have melted properly, which generates bubbles in the finalized item.

3. Mould cooling.
When the component has completely spent the right amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces a little for ease of extraction from the mould. This is one more procedure that relies a lot on the ideal timing, since rapid cooling shrinks the material too fast, causing warping of the product.

4. The discharging or de-molding phase.
As soon as the material within te mold has cooled properly, the molder managing the process can then take out the finished item from the mould. The technique is repeated from the start, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Globe AZ 85501 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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