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

rotational moulding-New Holland-Rotational moulding pertains to a plastic production technique that produces hollow stress-free items. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of forms, colors and sizes. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing methods in that no pressure is required. It also has few competitors when it comes down to the creation of large size hollow items which are resilient and inexpensive.There is a wide variety of product lines that are developed by this process including big water tanks, automobile materials, intricate shaped medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style 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 New Holland PA 17557, 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 Molded-New Holland-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 New Holland 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 ancient times for creatingvseverl items. Egyptians for example, utilized roto-molding solutions in the manufacturing of ceramics. The Swiss were also working with this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were created using this method some time between 1940 and 1950. The system has however taken very long to take affect because it was considered to be a pretty slow process

1. Mold prep work.
A fixed measure of polymer in particle form is filled into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel substance. The color tone desired for the end product is pre compounded into the polymer. The most typically 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 heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and placed into the oven.

2. The heating up and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly, about 20 spins per minute. The main thing that is crucial at this moment is the period of time the mould will spend within the oven. If it stays to long, the product will lose stability and strength, generating a weak product. If it is taken out from the oven too early, the polymer will not have flowed properly, which creates bubbles in the finalized product line.

3. Mold cooling down.
When the product has sufficiently 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 mould. This is an additional step that relies a lot on the ideal timing, since rapid cooling decreases the material too quick, causing bending of the product.

4. The un-loading or de-moulding phase.
Once the material inside te mould has cooled correctly, the molder taking care of the process can then remove the completed item from the mold. The process is repeated from the start, giving a series of identical items.

For more information on the different rotational molding options offered for the New Holland PA 17557 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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