I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories.
- The traditional big funnel mounted to the table.
- Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf.
This the current arrangement.
- Vac-u-guard type hoods. These seem to be the choice for grinding graphite and other grinding which creates primarily fine dust. The dust collector itself is a 3/4 HP Torit cabinet collector, which is, according to Torit, appropriate for a single surface grinder. Any feedback on your experience is appreciated.