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

rotomoulding-Whitney-Rotational moulding refers to a plastic manufacturing solution that makes hollow stress-free product lines. The process uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, colors and sizes. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing techniques that no pressure is involved. It also has few rivals when it pertains to the creation of large hollow items which are long-lasting and inexpensive.There is a wide variety of products that are generated by this process including large size water tanks, automobile products, complex designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility 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 Whitney PA 15693, 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 roto-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

Custom Molding-Whitney-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 Whitney 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 Procedure in Detail

This moulding process has been used since earlier times for creatingvseverl products. Egyptians as an example, worked with rotomoulding methods in the manufacturing of ceramics. The Swiss were also employing this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were developed using this approach some time between 1940 and 1950. Since it was viewed to be a basically slow-moving approach, the procedure has however taken long to catch on

1. Mold preparation.
A fixed quantity of polymer in particle form is filled into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel substance. The coloring chosen for the end 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 design of plastic engineering.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then locked and placed within the oven.

2. The heating up and fusion procedure.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done slowly, about 20 rotations per minute. One thing that is crucial at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose value and strength, producing a poor item. If it is removed from the oven too early, the polymer will not have melted correctly, which produces bubbles in the completed item.

3. Mold cooling down.
When the material 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 a cool mist. When the product cools, it shrinks slightly for ease of extraction from the mold. This is yet another step that depends a lot on the ideal timing, since quick cooling reduces the material too quick, causing bending of the product.

4. The un-loading or de-moulding phase.
When the material inside te mould has cooled properly, the molder handling the operation can then extract the finished product from the mold. The process is repeated from the beginning, giving a series of identical items.

For more information on the different rotational molding options offered for the Whitney PA 15693 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