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

rotational molding-Meadville-Rotational molding pertains to a plastic production procedure that produces hollow stress-free product lines. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have different designs, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing procedures because no pressure is needed. It also has few competitors when it comes down to the creation of large size hollow items which are durable and inexpensive.There is a wide variety of items that are created by this process including large size water tanks, automobile products, sophisticated designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to type 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 Meadville PA 16335, 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 moulding 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-Meadville-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 Meadville 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 Rotomolding Method in Detail

This molding process has been used since ancient times for creatingvseverl products. Egyptians for instance, worked with roto-molding systems in the manufacturing of ceramics. The Swiss were also utilizing this rotation method to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this technique some time between 1940 and 1950. Given that it was thought of to be a very slow procedure, the procedure has however taken long to become popular

1. Mold prep work.
A fixed quantity of polymer in particle form is packed into a hollow mould. The mold is usually made from cast aluminium or sheet steel component. The coloring chosen for the finished product 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 style of plastic engineering.

Pre-heating of the oven starts, and it can 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 installed into the oven.

2. The heat and fusion process.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done slowly, about 20 revolutions per minute. Something that is vital at this point is the period of time the mold will spend within the oven. If it stays to long, the product will lose stability and strength, producing a poor product. If it is removed from the oven too early, the polymer will not have liquefied properly, which develops bubbles in the completed product line.

3. Mold cooling down.
When the product has completely spent the right amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it reduces a little for ease of extraction from the mold. This is an additional procedure that relies a lot on the right timing, since quick cooling reduces the material too quick, causing bending of the material.

4. The un-loading or de-molding step.
When the material within te mold has cooled correctly, the molder taking care of the procedure can then take out the finalized product from the mold. The procedure is repeated from the start, supplying a series of similar items.

For more information on the different rotational molding options offered for the Meadville PA 16335 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 products

Local Resources

Production Example
Google Map