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

roto-molding-Chesterfield-Rotational moulding refers to a plastic manufacturing solution that produces hollow stress-free items. The technique utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have varying designs, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing techniques that no pressure is called for. It also has few contenders when it pertains to the creation of large size hollow items which are durable and inexpensive.There is a variety of items that are generated by this process including big water tanks, automobile materials, intricate designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to 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 Chesterfield VA 23832, 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 Manufacturing-Chesterfield-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 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 Chesterfield 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 in Detail

This moulding process has been used since early times for creatingvseverl products. Egyptians as an example, worked with rotocasting methods in the manufacturing of ceramics. The Swiss were also applying this rotation type to make hollow chocolate eggs. Some plastic products in the USA were created using this procedure some time between 1940 and 1950. Because it was looked at to be a very slow approach, the procedure has however taken long to catch on

1. Mould preparation.
A fixed amount of polymer in powder form is loaded into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel material. The color intended for the final goods 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 style of plastic assembly.

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 put within the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly, about 20 spins per min. The main thing that is vital at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and durability, making a faulty item. If it is extracted from the oven too early, the polymer will not have melted correctly, which generates bubbles in the completed product line.

3. Mold cooling.
When the product has completely spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it shrinks a little for ease of removal from the mould. This is one more procedure that depends upon a lot on the right timing, since quick cooling shrinks the material too quick, causing bending of the item.

4. The unloading or de-moulding phase.
Once the product within te mould has cooled successfully, the person taking care of the process can then take out the completed item from the mold. The procedure is repeated from the start, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Chesterfield VA 23832 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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