Is your blast nozzle worn and reducing productivity?
We all know that a worn blast nozzle slows production by up to 15%. It is important to replace a worn nozzle to maintain productivity. (Go to Tip 40 to see how a worn blast nozzle reduces productivity).
The actual cost of a blast nozzle is extremely small in comparison to the total project cost, but the performance of a nozzle can actually affect a total project cost! Our experience is that a new nozzle will pay for itself in under 4 hours of blasting!!
We recommend the use of a nozzle size analyser. The Blast-One Nozzle Size Analyser Gauge (H131-PBAG) measures the orifice size of an abrasive blasting nozzle. Nozzle orifice wear leads to low nozzle pressure and results in decreased productivity and increased abrasive media consumption. It is good practise to check all the nozzles on a blasting job every week.
As soon as a nozzle has worn more than ½ a size, discard it and replace it with a new nozzle. Remember the cost of the nozzle is absolutely minimal compared to the money/time you will lose by continuing to blast with a worn nozzle.
Don't under estimate how significantly a worn nozzle will sap your productivity.
4 easy steps to determine blast nozzle wear using this convenient portable gauge.
Remove the marker from the cap of of the gauge.
Use the small black marker to colour a line on the side of the gauge.
Now insert the gauge into the threaded end of the blast nozzle and twist it.
The nozzle orrifice size is revealed by aligning the etched line in the black mark drawn on the side of the gauge to the scale on the gauge. Air consumption (CFM @ 100 psi) is also indicated.