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

rotomoulding-Creston-Rotational moulding refers to a plastic production technique that produces hollow stress-free products. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various forms, colors and sizes. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few rivals when it pertains to the production of large hollow items which are long lasting and inexpensive.There is a variety of items that are developed by this process including large water tanks, automobile items, complex molded medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in terms of style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Creston NC 28615, 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 rotocasting 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 Molding-Creston-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 North Carolina 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 Creston North Carolina 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 molding procedure has been used since earlier times for creatingvseverl items. Egyptians for example, worked with rotational molding methods in the making of ceramics. The Swiss were also using this rotation format to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this method some time between 1940 and 1950. The technique has however taken very long to catch on because it was looked at to be a relatively slow process

1. Mold fitting.
A fixed volume of polymer in particle form is packed into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The color preferred for the finished item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic assembly.

Pre-heating of the oven follows, and it may 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 inside the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done gradually, about 20 revolutions per minute. Something that is vital at this moment is the amount of time the mold will spend within the oven. If it stays to long, the component will lose value and strength, generating a poor item. If it is removed from the oven prematurely, the polymer will not have melted correctly, which creates bubbles in the completed item.

3. Mould cooling.
When the component has sufficiently spent the enough 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 a cool mist. When the component cools, it reduces slightly for ease of removal from the mould. This is one more step that depends a lot on the ideal timing, since rapid cooling shrinks the material too quickly, causing bending of the material.

4. The un-loading or de-moulding phase.
Once the product inside te mold has cooled adequately, the person managing the operation can then extract the completed product from the mould. The function is repeated from the start, giving a series of similar items.

For more information on the different rotational rotomolding options offered for the Creston NC 28615 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molding

Local Resources

Production Example
Google Map