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

rotational molding-Sheridan-Rotational molding pertains to a plastic manufacturing solution that produces hollow stress-free products. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of designs, colors and sizes. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few rivals when it comes down to the creation of large hollow products which are long-lasting and inexpensive.There is a variety of items that are developed by this process including large size water tanks, automobile items, sophisticated shaped medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in terms of style 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 Sheridan WY 82801, 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 rotational moulding 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 Molded-Sheridan-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 Wyoming 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 Sheridan Wyoming 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 Procedure in Detail

This molding technique has been used since early times for creatingvseverl items. Egyptians for example, utilized rotational molding procedures in the of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic items in the USA were created utilizing this method some time between 1940 and 1950. The system has however taken very long to take affect because it was considered to be a pretty slow-moving process

1. Mold readying.
A predetermined quantity of polymer in powder form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The colour wanted for the end 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 design of plastic engineering.

Pre-heating of the oven follows, 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 secured and placed within the oven.

2. The heating and fusion step.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done slowly, about 20 revolutions per min. One thing that is essential at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the component will lose stability and durability, creating a faulty product. If it is removed from the oven too early, the polymer will not have melted properly, which creates bubbles in the finished product.

3. Mould cooling down.
When the component has completely 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 generates a cool mist. When the product cools, it shrinks slightly for ease of removal from the mould. This is one more procedure that depends a lot on the right timing, since quick cooling shrinks the material too rapidly, causing bending of the product.

4. The offloading or de-moulding step.
Once the product within te mould has cooled successfully, the molder handling the operation can then extract the finished item from the mould. The process is repeated from the start, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Sheridan WY 82801 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic manufacturing

Local Resources

Production Example
Google Map