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

rotational moulding-Mechanicsville-Rotational moulding refers to a plastic manufacturing procedure that generates hollow stress-free products. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different shapes, 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 attribute that makes this different from other plastic manufacturing techniques because no pressure is involved. It also has few rivals when it comes down to the creation of large hollow products which are long lasting and inexpensive.There is a variety of products that are produced by this process including large water tanks, automobile materials, intricate molded medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to type 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 Mechanicsville MD 20659, 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 molding 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 Molding-Mechanicsville-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 Maryland 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 Mechanicsville Maryland 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 Rotomoulding Procedure in Detail

This moulding process has been used since earlier times for creatingvseverl products. Egyptians for example, utilized rotational molding techniques in the producing of ceramics. The Swiss were also making use of this rotation design to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this technique some time between 1940 and 1950. Since it was looked at to be a relatively slow method, the system has however taken long to catch on

1. Mould preparation.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel material. The color desired for the end goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic production.

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 sealed and inserted inside the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done gradually, about 20 spins per min. One thing that is vital at this point is the amount of time the mould will spend within the oven. If it overstays, the product will lose stability and durability, producing a poor item. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the finalized product.

3. Mould cooling down.
When the material has sufficiently spent the enough 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 creates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mold. This is another measure that depends upon a lot on the right timing, since rapid cooling decreases the material too rapidly, causing bending of the product.

4. The un-loading or de-moulding step.
As soon as the product inside te mold has cooled correctly, the molder handling the procedure can then remove the finished item from the mould. The function is repeated from the start, supplying a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Mechanicsville MD 20659 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 molded

Local Resources

Production Example
Google Map