Operating Instructions
6-54DC 208-230v/460-480 3Ø 60HZ
Dust Collector
October
2005
© Copyright Blastrac 10/11/05
20
6.1 Vacuum Adjustment – Operating Tips
The vacuum adjustment gate on the 6-54 Dust Collector is used to reduce or increase
the suction through the hose between the dust collector and the blast machine. Closing
the vent increases the suction.
For normal concrete surfaces, Blastrac does not recommend using more than the
50 feet of exhaust hose supplied with the blast system.
Adding additional hose can
cause insufficient suction which will allow unwanted dust and contaminants to
accumulate in the abrasive, thereby causing premature wear to the blast wheel and
liners. Additional hose can only be added when cleaning steel surfaces. Contact your
Blastrac representative for your specific steel cleaning application.
Normal shot blasting with the blast unit will usually be accomplished with the vacuum
adjustment gate partially open. Too much suction will sometimes allow abrasive to be
pulled from the blast unit and deposited into the dustpan. This is particularly true when
using small sizes of abrasive such as S - 170 and S - 230.
When using the 6-54 Dust Collector with the 1-15DMKIII or 1-15DSMKIII, the vacuum
adjustment gate should be fully closed for maximum suction. The 1-15DMKIII and 1-
15DSMKIII cleans a wider area and generates more dust, which necessitates the
maximum possible suction.
A period of trial and error may be necessary for specific job applications. Generally
speaking, the more dust generated by your shot blasting unit, the greater the suction
you will need from the dust collector to keep the abrasive as clean as possible.
