technology leader air pollution control

Downdraft Tables

FAQ

Questions we hear most often about downdraft tables

Q.

What features are needed in a down draft table for plasma cutting?

A.

A down draft table for plasma cutting should have local ventilation, rather than table-style ventilation. Also, to handle smoke, a down draft table for plasma cutting should have HEPA filtration.

Q.

Can one down draft table be used for several tasks?

A.

Yes – with the caveat that aluminum should not be “mixed” with other metals.

Q.

Can metal grinding dust hazards be eliminated with down draft tables?

A.

Yes – Tri-Mer’s Downdraft Workstation captures virtually all ferrous and nonferrous metal dusts .5 microns or larger at 99.5% efficiency or better

Q.

Can we buy self-contained downdraft tables for carbide grinding – also grinding aluminum?

A.

Self-contained downdraft tables are suitable for both carbide and aluminum. The downdraft table for grinding aluminum should be ducted to a wet collector – not a dry system, and it needs a hydrogen release valve. There are economical downdraft grinding tables that have these requirements.

Q.

Is there a downdraft table made to aerospace specs that’s suitable for volatile materials?

A.
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The Tri-Mer Wet Station Downdraft Table is manufactured to aerospace specifications and is engineered for beryllium, titanium, magnesium and aluminum.

Q.

The link between asthma and oil mist – also grinding dust hazards, are concerns for operators. Are there economical answers?

A.

The solution is a downdraft table with wet particulate collector. The best down draft tables are 99% efficient at eliminating metal grinding dust hazards – and preventing the respiratory diseases created by those hazards.

Q.

Is a downdraft table suitable for “non machining” tasks, such as sanding, polishing – or powder mixing?

A.

The Tri-Mer downdraft table is suitable for all of these; if corrosives are present, polypropylene, rather than mild steel construction, is preferred.

Q.

Our shop has several machining operations in a small space. If a downdraft table has a 3' X 8' work surface, will we need noise damping?

A.

Some downdraft tables would need enclosures – or barriers or silencers. Others well-within acceptable OSHA noise limits, and, are even quiet enough for normal conversation.