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Frequently Asked Questions
What decides which type of collector is needed?
What is in the air, before anything else.
Dry dust loads a filter and cleans off it.
Oily mist arrives wet and has to drain.
Metal fume is sub-micron and needs finer media.
Equipment bought for one blinds fast on another.
Identify the contaminant, then size the machine.
Why does capture position matter more than machine size?
Contaminant is easiest to catch where it is released.
At source you move a small heavily loaded volume.
At the room you move everything to catch the same thing.
That is a much larger machine doing a worse job.
Capture velocity beats filter area every time.
Most disappointing installations fail here.
What has to be established before anything is specified?
Whether the dust is combustible.
Wood, flour, sugar and aluminium all can be.
It becomes an explosion protection question first.
Equipment, siting and ducting all change.
Establish it from a dust test, not an assumption.
Retrofitting protection afterwards is expensive.
Where does the collected material go?
Somewhere that has to be planned for.
Dry dust drops into a bin that needs emptying.
Mist drains as coolant, usually back to the sump.
Fume filters are disposed of as contaminated waste.
Disposal route affects running cost significantly.
Metal-laden waste may be regulated.
Should filtered air be returned to the room?
It depends on the contaminant and the local rules.
Returning air saves the heat already paid for.
That matters in cold climates.
Some contaminants may not be recirculated.
Return usually requires higher filtration.
Confirm the local position before designing.
What is the true running cost?
Filters and energy, in that order.
Media is a consumable with a schedule.
Fan energy runs whenever the machine does.
Cleaning systems use compressed air continuously.
Compressed air is expensive and often uncounted.
Ask for consumption, not just capacity.
How is the ducting decided?
By transport velocity, not by convenience.
Dust settles in ducts run too slowly.
Settled dust is both a blockage and a hazard.
Velocity requirements differ by material.
Long flexible runs cost pressure quickly.
Design the ductwork with the collector, not after.