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

rotocasting-Gibsonia-Rotational moulding refers to a plastic manufacturing procedure that makes hollow stress-free products. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different shapes, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing procedures because no pressure is involved. It also has few contenders when it involves the production of large size hollow products which are long-lasting and inexpensive.There is a wide variety of items that are developed by this process including large size water tanks, automobile materials, sophisticated designed medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Gibsonia PA 15044, 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

Plastic Manufacturing-Gibsonia-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 Pennsylvania 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 Gibsonia Pennsylvania 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 Process Components

This molding technique has been used since early times for creatingvseverl items. Egyptians for example, worked with rotomoulding methods in the manufacturing of ceramics. The Swiss were also utilizing this rotation design to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. The technique has however taken very long to catch on because it was looked at as being a pretty slow-moving process

1. Mould prep work.
A fixed quantity of polymer in particle form is filled into a hollow mold. The mold is usually made from cast aluminium or sheet steel substance. The coloration needed for the finished item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic assembly.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then sealed and put inside the oven.

2. The heating and fusion procedure.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 rotations per min. One thing that is critical at this point is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and strength, creating a poor product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which creates bubbles in the finalized item.

3. Mould cooling.
When the material has completely spent the correct amount 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 product cools, it reduces slightly for ease of extraction from the mold. This is an additional measure that depends upon a lot on the ideal timing, since rapid cooling shrinks the material too quick, causing warping of the product.

4. The offloading or de-molding step.
When the component within te mold has cooled successfully, the molder managing the operation can then extract the completed item from the mold. The procedure is repeated from the beginning, supplying a series of exact product lines.

For more information on the different rotational molding options offered for the Gibsonia PA 15044 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