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

roto-molding-Mount Calvary-Rotational moulding refers to a plastic production solution that produces hollow stress-free product lines. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of shapes, colors and sizes. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing techniques that no pressure is needed. It also has few contenders when it pertains to the manufacture of sizable hollow items which are durable and inexpensive.There is a wide variety of product lines that are developed by this process including large water tanks, automobile products, sophisticated shaped medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the versatility 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 Mount Calvary WI 53057, 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 roto-molding 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-Mount Calvary-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 Mount Calvary 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 Process in Detail

This molding procedure has been used since earlier times for creatingvseverl items. Egyptians for instance, utilized rotocasting techniques in the manufacturing of ceramics. The Swiss were also using this rotation method to make hollow chocolate eggs. Some plastic products in the USA were created using this method some time between 1940 and 1950. The technique has however taken long to take affect because it was considered to be a somewhat slow process

1. Mould readying.
A fixed volume of polymer in powder form is packed into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel component. The coloring preferred 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 type of plastic production.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and placed within the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The turning is done slowly, about 20 revolutions per minute. Something that is vital at this point is the period of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, creating a poor item. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the finished product line.

3. Mold cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is another measure that relies a lot on the ideal timing, since rapid cooling decreases the material too quick, causing warping of the material.

4. The discharging or de-molding phase.
When the component inside te mould has cooled effectively, the molder taking care of the operation can then extract the finished item from the mould. The function is repeated from the beginning, supplying a number of exact products.

For more information on the different rotational molding options offered for the Mount Calvary WI 53057 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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