We offer the service of blast cleaning, by means of shot-blasting, of metal parts: sections, sheets, steel structures and other elements.
We provide you with a shot-blasting chamber that allows for the treatment of workpieces with dimensions of: 14.0 x 4.5 x 4.0 m
Depending on your requirements, we can achieve the following surface preparation grades (acc. to PN-ISO 8501-1):
- Class Sa 1 – Rough blast cleaning – removes greasy stains, rust, paint coating and foreign contaminants
- Class Sa 2 – Thorough blast cleaning – residual contaminants adhering to the surface are permissible
- Class Sa 2.5 – More thorough blast cleaning – minor traces of contamination, e.g. in the form of spots, are acceptable.
After treatment, the surfaces become slightly matte, making it possible to carry out further treatments, such as painting or galvanising.
Steel or aluminium components are usually subjected to a number of operations such as bending, milling or grinding before they are used in the target structures; they are also often subjected to heat treatment. All these processes, although necessary for prefabricated steel and aluminium to perform their function, also make them less durable. How is this possible? During machining processes, the fatigue strength of workpieces decreases, as they are subjected to severe stresses, specifically: tensile residual stress. This makes the materials ultimately less durable than they were at the beginning, yet we want them to last as long as possible. This is why shot-blasting is used to restore their strength. Kraków is a city where access to this type of service is very easy, as there is quite a high demand for it, but other parts of the country also have no particular problems accessing shot-blasting.
Effect of shot-blasting on steel strength
The shot-blasting process is used to increase the strength of materials, as the process changes tensile residual stress into compressive residual stress. This, in turn, allows the workpieces to become stronger, as a result of gaining greater resistance to the loads they will have to withstand during use. Shot-blasting Kraków is also a process for cleaning steel structures. Workpieces are placed in a shot-blasting chamber, where they are blast-cleaned. This procedure is used for finished steel structures, but also for prefabricated elements, such as sheets, sections, etc. It is always necessary before painting or galvanising steel, because it ensures that these operations are carried out properly. However, shot-blasting Kraków does require the workpieces to be degreased and cleaned of welding drops beforehand. Unfortunately, shot-blasting alone will not remove such contaminants, and they may later adversely affect the further processing of materials. Of course, the cleaning of steel structures by this method can be achieved using several techniques as well as has different degrees, depending on the effect we want to achieve.
Shot-blasting Kraków – Advantages
Without a doubt, a major advantage of shot-blasting is that even very large steel structures can be subjected to such cleaning. Workpieces weighing up to eight thousand kilograms can be blasted (and some machines can also process even heavier workpieces). Naturally, if you are interested in shot blasting in Kraków and are looking for a contractor who will complete the job for you, it is worth calling a few different companies first to find out whether their equipment allows them to complete the job for you, and also to check the prices for such a service. Then you will be able to choose the best option for you. Some arguments in favour of Metal Service’s offer include its extensive experience in shot-blasting steel construction elements and its professional technical and engineering staff, which ensure the best quality of the service while maintaining an attractive price level.