How to choose the correct blasting nozzle size?
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How to choose the correct sandblasting nozzle size?
How much air do you need for different size nozzles to maintain the needed pressure?Every sandblaster operator knows - in order to work effectively and get the job done, you need to use the right sized nozzle. We want to clarify a little bit further - in order to sandblast the surface effectively you need to maintain at least around 6,5 - 7 bar pressure. To achieve and maintain this level of pressure you need to select the blast nozzle's size according to available compressed air capacity (m3/min).
Air and abrasive consumption in terms of compressed air pressure and sandblasting nozzle size
7 bar 8,5 bar Nozzle diameter Air consumption (m3/min) 0,6 0,75 3,2 mm Abrasive consumption (kg/h) 54 61 Nozzle diameter Air consumption (m3/min) 1,3 1,7 4,8 mm Abrasive consumption (kg/h) 118 145 Nozzle diameter Air consumption (m3/min) 2,3 2,7 6,35 mm Abrasive consumption (kg/h) 227 306 Nozzle diameter Air consumption (m3/min) 4 5,4 8 mm Abrasive consumption (kg/h) 374 454 Nozzle diameter Air consumption (m3/min) 5,7 7,8 9,5 mm Abrasive consumption (kg/h) 499 612 Nozzle diameter Air consumption (m3/min) 7,3 8,9 11 mm Abrasive consumption (kg/h) 703 816 Nozzle diameter Air consumption (m3/min) 9,7 8,9 12,5 mm Abrasive consumption (kg/h) 919 1145 Nozzle diameter Air consumption (m3/min) 15,6 19,8 16 mm Abrasive consumption (kg/h) 1497 1814 Nozzle diameter Air consumption (m3/min) 22,7 31,2 19 mm Abrasive consumption (kg/h) 2132 2586