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

roto-molding-Eagle Butte-Rotational moulding pertains to a plastic manufacturing technique that generates hollow stress-free items. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have different shapes, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this unique from other plastic manufacturing procedures that no pressure is required. It also has few rivals when it comes down to the production of sizable hollow products which are long lasting and inexpensive.There is a wide range of items that are created by this process including big water tanks, automobile materials, intricate designed medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in terms of type and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Eagle Butte SD 57625, 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

Plastic Manufacturing-Eagle Butte-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 South Dakota 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 Eagle Butte South Dakota 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 Components

This molding method has been used since ancient times for creatingvseverl items. Egyptians for instance, used rotomoulding techniques in the creating of ceramics. The Swiss were also making use of this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. Considering that it was viewed to be a somewhat slow-moving system, the procedure has however taken long to catch on

1. Mold prep work.
A fixed quantity of polymer in grain form is filled into a hollow mould. The mould is usually made of cast aluminium or sheet steel substance. The color intended for the final item is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic assembly.

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 positioned within the oven.

2. The heating up and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The rotation is done gradually, about 20 rotations per min. Something that is vital at this moment is the period of time the mould will spend inside the oven. If it overstays, the material will lose stability and durability, producing a weak item. If it is taken out from the oven too early, the polymer will not have melted correctly, which creates bubbles in the completed product line.

3. Mold cooling down.
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 shrinks a little for ease of extraction from the mould. This is an additional measure that depends upon a lot on the right timing, since quick cooling reduces the material too rapidly, causing warping of the product.

4. The removing or de-molding phase.
When the material within te mold has cooled correctly, the person taking care of the procedure can then extract the completed item from the mold. The function is repeated from the beginning, giving a series of exact items.

For more information on the different rotational rotomolding options offered for the Eagle Butte SD 57625 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 molding

Local Resources

Production Example
Google Map