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

rotomoulding-Tioga-Rotational molding refers to a plastic manufacturing procedure that produces hollow stress-free items. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have different forms, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing processes because no pressure is called for. It also has few competitors when it comes to the production of large size hollow items which are resilient and inexpensive.There is a wide variety of items that are produced by this process including large size water tanks, automobile items, intricate designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of 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 Tioga PA 16946, 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

Plastic Manufacturing-Tioga-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 Tioga 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 Method Components

This moulding procedure has been used since ancient times for creatingvseverl product lines. Egyptians for example, employed rotational molding methods in the of ceramics. The Swiss were also making use of this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were developed utilizing this technique some time between 1940 and 1950. Considering that it was considered to be a relatively slow-moving method, the procedure has however taken long to catch on

1. Mold prep work.
A predetermined volume of polymer in powder form is filled into a hollow mould. The mould is usually built from cast aluminium or sheet steel material. The coloration preferred for the final product is pre compounded into the polymer. The most often 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 starts, 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 sealed and put within the oven.

2. The heat and fusion step.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly and gradually, about 20 spins per sixty seconds. One thing that is essential at this point is the period of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, creating a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which generates bubbles in the finished product line.

3. Mold cooling down.
When the material has sufficiently 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 a cool mist. When the component cools, it reduces slightly for ease of removal from the mold. This is another measure that depends upon a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing bending of the product.

4. The offloading or de-molding step.
When the product within te mould has cooled correctly, the molder managing the operation can then take out the completed item from the mould. The technique is repeated from the start, making a number of exact product lines.

For more information on the different rotational molding options offered for the Tioga PA 16946 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