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

rotational molding-Sutton-Rotational molding refers to a plastic manufacturing method that produces hollow stress-free product lines. The technique utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of designs, colors and sizes. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing processes in that no pressure is required. It also has few rivals when it pertains to the manufacture of sizable hollow products which are durable and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile materials, intricate molded medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the versatility in regards to style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Sutton WV 26601, 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

Plastic Products-Sutton-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 Sutton 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 Method in Detail

This moulding operation has been used since early times for creatingvseverl products. Egyptians for example, worked with rotational molding techniques in the of ceramics. The Swiss were also working with this rotation method to generate hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. Due to the fact that it was regarded to be a basically slow system, the process has however taken long to catch on

1. Mould readying.
A predetermined quantity of polymer in grain form is loaded into a hollow mold. The mould is usually made of cast aluminium or sheet steel material. The coloration wanted 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.

Preheating of the oven follows, 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 locked and inserted into the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly, about 20 revolutions per sixty seconds. The main thing that is vital at this point is the amount of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, producing a poor product. If it is extracted from the oven too early, the polymer will not have liquefied correctly, which generates bubbles in the finalized item.

3. Mould cooling down.
When the product has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it reduces slightly for ease of removal from the mold. This is yet another measure that depends a lot on the ideal timing, since rapid cooling decreases the material too quick, causing bending of the material.

4. The offloading or de-molding step.
When the component inside te mould has cooled properly, the molder handling the operation can then take out the completed item from the mold. The process is repeated from the start, providing a series of similar items.

For more information on the different rotational rotomolding options offered for the Sutton WV 26601 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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