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

rotational moulding-Stanley-Rotational molding pertains to a plastic production procedure that produces hollow stress-free products. The procedure depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of designs, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing techniques in that no pressure is called for. It also has few competitors when it involves the production of large size hollow items which are long-lasting and inexpensive.There is a variety of product lines that are produced by this process including large water tanks, automobile materials, intricate molded medical products, leisure 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 Stanley WI 54768, 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

Plastic Products-Stanley-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 Wisconsin 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 Stanley Wisconsin 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 in Detail

This molding method has been used since earlier times for creatingvseverl items. Egyptians for example, applied rotocasting procedures in the making of ceramics. The Swiss were also employing this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this approach some time between 1940 and 1950. The procedure has however taken very long to catch on because it was looked at to be a relatively slow-moving process

1. Mold fitting.
A fixed quantity of polymer in grain form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel substance. The color chosen 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 manufacturing.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then locked and put within the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The rotation is done gradually, about 20 rotations per minute. Something that is vital at this moment is the period of time the mould will spend inside the oven. If it stays to long, the product will lose value and durability, making a poor product. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the completed product.

3. Mould cooling.
When the product has completely 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 shrinks a little for ease of removal from the mold. This is another step that relies a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the material.

4. The un-loading or de-moulding step.
As soon as the product within te mold has cooled successfully, the molder handling the operation can then remove the finalized item from the mold. The process is repeated from the start, making a series of identical products.

For more information on the different rotational molding options offered for the Stanley WI 54768 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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