Is rotomoulding a good alternative to metal carpentry?

Rotational moulding is a plastic transformation technology that allows the manufacture of large-volume hollow or semi-hollow pieces for highly technical sectors such as mobility, energy, industry, urban furniture, lighting, construction, medical equipment and even agriculture and livestock.

- Diferencias entre el rotomoldeo y la carpintería metálica (1)-1

It is a highly versatile production process, which is particularly efficient in the manufacture of short series and allows a high degree of freedom in design and customisation. These characteristics make rotomoulding an optimal solution to fulfil the requirements of a wide variety of sectors.

Rotomoulding allows the manufacture of a very extensive range of pieces, from the most basic to those of a technical nature and which are highly complex. 

Containers, housings, tanks, packaging, playgrounds... are just some of the products that can be manufactured using rotomoulding with features such as strength, durability and an excellent aesthetic finish.

High technological maturity

Rotational moulding has reached a significant degree of maturity thanks to continuous technological evolution, making it an excellent alternative to other manufacturing processes. 

One of the technologies for which rotomoulding can be a very interesting alternative is metal carpentry. Although there are pieces that are specific to each of these production processes, rotational moulding can compete with metal carpentry in the manufacture of tanks, liquid tanks, urban furniture and automotive pieces, among others.

There are significant differences between the two technologies. One of the essential distinguishing elements between the two solutions is that rotomoulding has a high degree of automation capability, allowing for faster manufacturing.

Rotational moulding makes it possible to obtain final components, which do not require subsequent treatments, welding and riveting processes, painting or other types of protection systems to prevent the deterioration of the materials used, corrosion, wear and rust, as is the case in metal carpentry.

Another of the outstanding differences between the two processes, which is a clear advantage of rotational moulding with respect to the metal carpentry, is the economic cost.

Rotomoulding is much more competitive, even when it comes to the production of very short series, because it has lower production times, a fact that allows for significant reductions in personnel costs. It is also a cheaper technology due to the cost of the raw material used, as plastic is cheaper than the metals and alloys used in metalwork.

Smaller carbon footprint

One of the most significant differences is undoubtedly the environmental aspect. Rotomoulding is an environmentally friendly solution. Despite using plastics as raw materials, they are 100% recyclable polymers, which contribute to ensuring environmental sustainability and have a lower carbon footprint than the use of metals.

In addition, the volume of plastic used in tonnes per year in rotational moulding is very limited and the waste generated is a low degradation material. This last aspect is a remarkable phenomenon, as it allows both the waste and the manufactured pieces to retain their properties almost intact, so that they can be reused with good results. 

Added to all these elements is the fact that the components and pieces manufactured thanks to rotomoulding are products that have a long useful life, never less than 5 years, although in many cases they can exceed 20 years.

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