What size compressor do I need?
The compressor's capacity expressed in m³/min or CFM is of more importance than its pressure (bar/PSI). This volume capacity must match the set blasting pressure and orifice of the nozzle.
Importance of the right compressor
The simple fact: ‘more energy = more production’ certainly also applies to compressed air blasting. The compressor must therefore match the type of blast work and the size of the project. This is because with more compressed air capacity, larger blast nozzles can be used that give a larger blast pattern. This allows faster work.
Compressed air consumption factors
The compressed air consumption of a pressure blast system is determined to a very large extent by two factors:
- the nozzle orifice diameter
- the set blasting pressure.
The type of machine or, for example, the contents of the blast pot or the length of the blast hose have no influence. However, the compressed air consumption of the blast nozzle must be combined with the consumption of additional components, such as aftercooler and blast helmet, to select the appropriate compressor capacity.
Determine yourself
You can download our table showing compressed air consumption in m³/min and cfm for different nozzle diameters and blasting pressures. Using our calculation sheet, all diameters and blasting pressures can be self-calculated.
Get free advice on compressors
Gritco itself does not sell compressors, but some of our dealers do have them in their range. Together, however, we can always help you choose the right compressor capacity for your specific applications.
