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

rotomolding-Craigsville-Rotational moulding refers to a plastic production practice that produces hollow stress-free products. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of forms, sizes and colors. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing methods because no pressure is involved. It also has few rivals when it involves the production of large hollow items which are long-lasting and inexpensive.There is a wide range of items that are developed by this process including large water tanks, automobile products, complex molded medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of style and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Craigsville WV 26205, 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 Manufacturing-Craigsville-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 West Virginia 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 Craigsville West Virginia 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 Components

This molding process has been used since ancient times for creatingvseverl product lines. Egyptians as an example, worked with rotomoulding systems in the manufacturing of ceramics. The Swiss were also working with this rotation type to generate hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. Because it was regarded to be a rather slow approach, the process has however taken long to catch on

1. Mold fitting.
A fixed amount of polymer in particle form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The colour preferred for the final product 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 format 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 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 layers the inside if the mold. The turning is done slowly and gradually, about 20 spins per minute. The main thing that is crucial at this point is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose value and durability, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which creates bubbles in the completed product.

3. Mold cooling down.
When the material has completely spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it reduces a little for ease of removal from the mould. This is an additional step that depends upon a lot on the correct timing, since quick cooling decreases the material too rapidly, causing warping of the material.

4. The removing or de-moulding phase.
When the product within te mould has cooled correctly, the molder handling the operation can then take out the completed product from the mold. The function is repeated from the beginning, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Craigsville WV 26205 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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