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

rotational molding-Cambria-Rotational molding pertains to a plastic manufacturing procedure that makes hollow stress-free products. The method relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of forms, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures in that no pressure is required. It also has few rivals when it pertains to the creation of large hollow products which are long lasting and inexpensive.There is a wide range of product lines that are developed by this process including large water tanks, automobile products, intricate shaped medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of style and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Cambria WI 53923, 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-Cambria-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 Cambria 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 technique has been used since ancient times for creatingvseverl products. Egyptians as an example, used roto-molding techniques in the creating of ceramics. The Swiss were also using this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. Due to the fact that it was viewed to be a very slow process, the procedure has however taken long to catch on

1. Mold readying.
A predetermined measure of polymer in powder form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel material. The coloration desired for the finished item is pre compounded into the polymer. The most often 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 mold with the powdered polymer is then secured and inserted within the oven.

2. The heating up and fusion process.
Once within the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly and gradually, about 20 revolutions per minute. Something that is essential at this moment is the period of time the mold will spend inside the oven. If it overstays, the component will lose value and strength, making a poor item. If it is removed from the oven prematurely, the polymer will not have melted properly, which produces bubbles in the completed product line.

3. Mould cooling down.
When the component has sufficiently spent the correct amount 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 creates a cool mist. When the component cools, it reduces somewhat for ease of removal from the mold. This is yet another measure that depends upon a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the item.

4. The discharging or de-moulding step.
When the product inside te mould has cooled successfully, the molder managing the operation can then remove the finished item from the mould. The function is repeated from the start, giving a series of exact product lines.

For more information on the different rotational molding options offered for the Cambria WI 53923 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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