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

rotocasting-Park City-Rotational moulding refers to a plastic manufacturing solution that generates hollow stress-free items. The function uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of forms, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing processes in that no pressure is involved. It also has few contenders when it comes to the manufacture of large hollow products which are durable and inexpensive.There is a wide range of products that are generated by this process including big water tanks, automobile products, sophisticated designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in terms of design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Park City UT 84060, 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 rotomoulding 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

Custom Molding-Park City-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 Utah 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 Park City Utah 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 system has been used since ancient times for creatingvseverl items. Egyptians for instance, utilized roto-molding techniques in the making of ceramics. The Swiss were also working with this rotation approach to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The procedure has however taken very long to catch on because it was thought of as being a relatively slow-moving process

1. Mold fitting.
A fixed measure of polymer in powder form is filled into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel substance. The color chosen for the final goods 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 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 mould with the powdered polymer is then sealed and installed inside the oven.

2. The heat and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 rotations per min. One thing that is vital at this moment is the period of time the mould will spend within the oven. If it stays to long, the component will lose value and durability, creating a faulty product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the completed item.

3. Mould cooling.
When the product has sufficiently spent the correct 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 shrinks somewhat for ease of extraction from the mould. This is one more measure that depends a lot on the correct timing, since rapid cooling decreases the material too quick, causing bending of the product.

4. The un-loading or de-molding step.
When the material within te mould has cooled adequately, the molder managing the procedure can then take out the finalized product from the mold. The procedure is repeated from the beginning, making a series of identical items.

For more information on the different rotational rotomolding options offered for the Park City UT 84060 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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