woodworkingnetwork.com | December 2018 | 50 |
by Mike McClaran CNC TECHNOLOGY
Fractured CNC vacuum tales
If filters clog on woodworking machines, fix them to save significant costs.
Irecently visited a shop in North Carolina and found some very interesting maintenance proce- dures.
First, let’s note that the word “filter”
can be used as either a noun or a verb: a
If you have a fractured filter, well, it
cannot filter any longer.
In this particular case, rather than
address a broken CNC woodworking machine vacuum component, they upped
the power to overcome the blocked
The filters as shown in these pictures
are all fractured, letting bigger particles
of dust into the system.
On this particular CNC machine,
there are 24 filters per rail with eight
rails. Most of these filters were fractured.
Rather than fix the fractured filters,
this customer thought the answer - as
Tim “The Tool Man” Taylor would say,
was to add MORE POWER!
They decided to more than double
the CFM (cubic feet per minute) of air
moving through, and to increase horsepower to make up for the difference in
clogged vacuum lines.
I’m guessing this is costing the
customer an extra $15 to $20 per day, or
around $4,500 per year.
Now, as it turns out, for about $800
in parts (pictured are BVC brass filters
WK15F), or just 18 percent of the cost of
that annual energy waste, these filters
can be replaced with new ones, like these
Replacing the 18 fractured filters on this CNC machine takes about an hour, and saves
thousands of dollars.
The filters as shown in these pictures are all fractured, letting bigger particles of dust into the system.