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

rotomolding-Union-Rotational molding pertains to a plastic production solution that creates hollow stress-free items. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have various designs, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing processes in that no pressure is required. It also has few contenders when it involves the manufacture of large size hollow products which are resilient and inexpensive.There is a wide variety of product lines that are produced by this process including large size water tanks, automobile items, sophisticated shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Union NH 3887, 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 Molding-Union-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 New Hampshire 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 Union New Hampshire 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 Process Components

This moulding method has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotomoulding procedures in the creating of ceramics. The Swiss were also working with this rotation design to create hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this technique some time between 1940 and 1950. The process has however taken long to catch on because it was looked at to be a moderately slow-moving process

1. Mould prep work.
A fixed quantity of polymer in grain form is loaded into a hollow mould. The mold is usually made of cast aluminium or sheet steel component. The coloration preferred 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 style of plastic engineering.

Preheating 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 mould with the powdered polymer is then locked and installed inside the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done slowly, about 20 revolutions per min. The main thing that is important at this moment is the amount of time the mold will spend within the oven. If it stays to long, the component will lose stability and durability, creating a faulty item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which develops bubbles in the finalized product.

3. Mould cooling.
When the material has sufficiently spent the right amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it shrinks a little for ease of removal from the mold. This is an additional measure that depends upon a lot on the ideal timing, since quick cooling reduces the material too quickly, causing warping of the item.

4. The removing or de-molding step.
Once the material within te mould has cooled correctly, the person taking care of the operation can then extract the finalized product from the mold. The technique is repeated from the start, making a series of exact products.

For more information on the different rotational rotomolding options offered for the Union NH 3887 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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