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

rotomolding-Big Timber-Rotational moulding pertains to a plastic production technique that generates hollow stress-free products. The technique relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of designs, colors and sizes. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing techniques in that no pressure is called for. It also has few contenders when it comes down to the manufacture of large hollow products which are durable and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile materials, sophisticated shaped medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Big Timber MT 59011, 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

Custom Molding-Big Timber-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 Montana 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 Big Timber Montana 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 Components

This moulding procedure has been used since ancient times for creatingvseverl products. Egyptians for example, used roto-molding solutions in the creating of ceramics. The Swiss were also applying this rotation style to generate hollow chocolate eggs. Some plastic products in the USA were developed using this approach some time between 1940 and 1950. Due to the fact that it was viewed to be a rather slow-moving technique, the system has however taken long to become popular

1. Mold fitting.
A predetermined amount of polymer in powder form is filled into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color needed for the final item is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

Pre-heating of the oven follows, and it may 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 placed within the oven.

2. The heating up and fusion procedure.
Once inside the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done gradually, about 20 rotations per minute. The main thing that is vital at this point is the amount of time the mould will spend inside the oven. If it overstays, the component will lose value and durability, producing a faulty item. If it is removed from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finalized product line.

3. Mould cooling.
When the component has completely spent the correct amount of time in the oven, it is then taken out 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 reduces a little for ease of extraction from the mould. This is an additional step that depends upon a lot on the ideal timing, since quick cooling reduces the material too fast, causing warping of the material.

4. The unloading or de-moulding step.
As soon as the material within te mold has cooled successfully, the person managing the procedure can then take out the completed product from the mold. The process is repeated from the beginning, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Big Timber MT 59011 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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