How To Calculate Anodising & Powder Coating Price ?

anodizing aluminum prices in hindi
The cost of the anodic oxidation of aluminium profiles is affected by numerous technical factors, which in many cases the very clients who use the profiles ignore


Anodic oxidation, as we know, is the most widespread among surface finishing for aluminium profiles. A lesser-known aspect, even by the best part of end users of profiles, is the relationship between production cost and selling price of the anodized profiles. Considering the characteristics of this process, productivity and therefore industrial cost are influenced by the technical parameters of each profile, such as:

a) absorption perimeter;
b) cleansing perimeter;
c) weight;
d) length of the bars;
e) footprint;
f) shape complexity.
In Germany, the most prominent user of this finishing in Europe, the selling price is generally calculated per square metre (measured according to the absorption perimeter), while in Italy, the second European user, price per kilo prevails, as a consequence of the traditional sale of extruded profiles by weight. Both methods are valid, as long as behind the calculation of selling prices there is a detailed and accurate evaluation of costs for every single process phase, each with its own measurement parameter (per square metre, per kg/m or per bar).

Phases and costs of anodizing
Anodic oxidation is a process with many phases, but not a complicated one; technical knowledge, supported by the experience of the company carrying out the treatment, guarantees practically certain results. This stability helps to determine beforehand and correctly the single costs. This article intends showing the influence of each elementary phase of the process on the composition of the final cost.
The process examined was anodizing with sulphuric acid (one of the most frequently used), anodizing aluminum prices in hindisegmented into its most significant phases . For each phase a value has been indicated (in red) which approximately shows the “weight” of the cost of each phase with respect to the final cost.
The simplified hypothesis considers a typical-average profile with the following properties:

Profile: tubular:
Weight: 800g/m;
Absorption perimeter: 350 mm;
Weight to perimeter
conversion ratio: 2.28;
Footprint: ≤ 100 mm (confined);
Shape complexity: medium;
Length of bars: 6000 mm.

Looking at the weight indexes of the cast shown in the scheme (in red), the phases of the process which most affect the final cost immediately stand out: these are the preparation of the surfaces, the thickness class of the oxide and colouring. By summing all of the “indexes” for the chosen cycle and multiplying the value thus obtained by 0.050 INR/kg a realistic estimate of the final cost of the anodic oxidation may be obtained.

The most significant phases Phase A) Storage and unpacking Storage
It sometimes happens that large-scale users find it more convenient to ask the oxidizer to store the product, giving him the advantage of also stockpiling a guaranteed amount of work; the storage and handling costs should however not be underestimated, especially as regards the small orders which need to be processed and rearranged.

Unpacking
Profiles may be protected in many ways, ranging from the single sheet placed between layers of profiles packed in metal crates, to the packaging of single rods placed in strapped packages. Considering these operations are often manual, costs may rise significantly, especially for light profiles, short bars and small lots of material.

Phase B) Mechanical preparation of surfaces
Once this was carried out on the single rod; currently cleansing centres are used which can deal with several rods at the same time. It is necessary to evaluate correctly the real productivity also considering difficulties in carrying out the process and the real footprint and shape of the profiles.


Conclusions
This paper aimed at highlighting the opportunity of an analytical approach in terms of process phases which everyone will be able to adapt to their situation. By all means, more efficient training at all levels, the insertion of professionals capable of enacting a more modern corporate management (quality/process managers, management control and so on), a greater attention to costs today allow to trust that it will soon be possible to provide more rational price quotes. The market is the way it is, and sometimes other motivations prevail, but a deeper knowledge might be the basis of more informed choices.