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

rotocasting-Trenton-Rotational moulding refers to a plastic manufacturing solution that creates hollow stress-free product lines. The procedure relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of designs, colors and sizes. This method is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing procedures that no pressure is required. It also has few competitors when it comes down to the manufacture of large size hollow items which are durable and inexpensive.There is a variety of product lines that are generated by this process including big water tanks, automobile items, intricate designed medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in regards to design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Trenton NC 28585, 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 rotomolding 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-Trenton-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 Trenton 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 Process in Detail

This moulding system has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized roto-molding techniques in the of ceramics. The Swiss were also applying this rotation type to generate hollow chocolate eggs. Some plastic items in the USA were created using this approach some time between 1940 and 1950. The procedure has however taken very long to catch on because it was considered as being a rather slow-moving process

1. Mold prep work.
A predetermined volume of polymer in powder form is filled into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel component. The coloration preferred for the final goods 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 manufacturing.

Preheating 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 mould with the powdered polymer is then locked and placed into the oven.

2. The heat and fusion step.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per min. The main thing that is critical at this moment is the period of time the mold will spend within the oven. If it stays to long, the product will lose value and strength, creating a poor item. If it is extracted from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the completed item.

3. Mold cooling down.
When the material has completely spent the correct amount 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 material cools, it shrinks somewhat for ease of extraction from the mold. This is one more procedure that depends a lot on the correct timing, since quick cooling reduces the material too quick, causing warping of the material.

4. The discharging or de-moulding step.
As soon as the material within te mold has cooled effectively, the person taking care of the procedure can then extract the finalized item from the mold. The procedure is repeated from the start, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Trenton NC 28585 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 plastic manufacturing

Local Resources

Production Example
Google Map