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

roto-molding-Necedah-Rotational moulding refers to a plastic production solution that produces hollow stress-free items. The process uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of forms, sizes and colors. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is called for. It also has few contenders when it comes down to the manufacture of large size hollow products which are resilient and inexpensive.There is a wide variety of product lines that are generated by this process including large size water tanks, automobile products, complex designed medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Necedah WI 54646, 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 Molding-Necedah-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 Necedah 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 Components

This molding process has been used since early times for creatingvseverl product lines. Egyptians for example, applied roto-molding systems in the manufacturing of ceramics. The Swiss were also working with this rotation style to make hollow chocolate eggs. Some plastic items in the USA were created using this technique some time between 1940 and 1950. Due to the fact that it was considered to be a relatively slow system, the technique has however taken long to catch on

1. Mold prep work.
A fixed amount of polymer in grain form is filled into a hollow mould. The mould is usually built from cast aluminium or sheet steel substance. The coloration preferred for the end goods 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 format of plastic manufacturing.

Pre-heating of the oven starts, and it may 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 secured and put inside the oven.

2. The heating and fusion process.
Once within the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done gradually, about 20 revolutions per sixty seconds. One thing that is essential at this point is the amount of time the mold will spend inside the oven. If it stays to long, the component will lose value and durability, making a poor item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which generates bubbles in the finalized product.

3. Mold cooling down.
When the material has completely spent the enough 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 creates a cool mist. When the product cools, it reduces a little for ease of removal from the mold. This is yet another step that depends a lot on the correct timing, since quick cooling reduces the material too quickly, causing warping of the material.

4. The removing or de-molding step.
When the component within te mould has cooled properly, the person taking care of the operation can then take out the finalized item from the mould. The procedure is repeated from the start, giving a series of identical product lines.

For more information on the different rotational molding options offered for the Necedah WI 54646 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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