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

rotomolding-Columbus Junction-Rotational molding refers to a plastic manufacturing solution that produces hollow stress-free product lines. The function depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of shapes, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing procedures in that no pressure is involved. It also has few rivals when it involves the production of large hollow products which are resilient and inexpensive.There is a wide variety of product lines that are produced by this process including large size water tanks, automobile products, sophisticated molded medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to type 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 Columbus Junction IA 52738, 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 Molded-Columbus Junction-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 Iowa 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 Columbus Junction Iowa 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 Roto-Molding Procedure in Detail

This moulding procedure has been used since ancient times for creatingvseverl items. Egyptians for example, used rotocasting procedures in the making of ceramics. The Swiss were also working with this rotation method to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this method some time between 1940 and 1950. The technique has however taken long to catch on because it was looked at to be a moderately slow process

1. Mould readying.
A fixed volume of polymer in powder form is loaded into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The colour wanted for the final product is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic manufacturing.

Pre-heating of the oven starts, and it can 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 sealed and installed within the oven.

2. The heat and fusion procedure.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done slowly, about 20 revolutions per sixty seconds. One thing that is important at this moment is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and durability, creating a weak item. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the finished product.

3. Mold cooling down.
When the product has sufficiently spent the right amount of time in the oven, it is then extracted 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 a little for ease of extraction from the mold. This is yet another step that depends a lot on the right timing, since quick cooling decreases the material too rapidly, causing bending of the material.

4. The un-loading or de-molding step.
Once the product within te mould has cooled effectively, the person taking care of the process can then take out the finished product from the mould. The procedure is repeated from the start, making a number of exact items.

For more information on the different rotational rotomolding options offered for the Columbus Junction IA 52738 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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