Blastline Portable Blast Machine
Blastline Ltd is an ISO 9001/2000 approved company FOR THE MANUFACTURE, FABRICATION, and TESTING OF BLAST MACHINES. All of our vessels
are fabricated by coded welders and built to the Pressure Equipment Directive 97/23/EC.
The size of nozzle used will depend on the volume of the compressor
As the following chart shows.
| ||60 psi||70 psi||80 psi||90 psi||100 psi|
|1/4" 6mm||54 cfm||60 cfm||68 cfm||74 cfm||81 cfm|
|5/16" 8mm||89 cfm||101 cfm||113 cfm||126 cfm||137 cfm|
|3/8" 9.5mm||126 cfm||143 cfm||161 cfm||173 cfm||196 cfm|
|7/16" 11mm||170 cfm||190 cfm||217 cfm||240 cfm||254 cfm|
|1/2" 13mm||224 cfm||252 cfm||208 cfm||309 cfm||338 cfm|
Source – British Compressed Air Society data
The physical size of abrasive particles also needs to be considered by the end user as too small a nozzle will result in blockages
CFM will also reduce at the point of the nozzle dependant on over extending the blast hose i.e. when hose is extended past 40 mtrs losses over
10% for each further length can occur dependant on site conditions.
Blastline only sell tungsten carbine nozzles of UK manufacture to ensure consistent quality and 500 hr lifespan of the nozzle,
(excludes aluminium oxide abrasive).