I’m here today to talk to you something talked to you about a few things about our compressors
and explains to you the differences between single stage and two-stage so
I’d like to just start with this particular machine it’s a five
horsepower eighty gallon two-stage machine two-stage is pretty simple all
it means is that the air is compressed twice and doing that what we do is we
have a large low-pressure piston which you can kind of see here in the front
the air is compressed once in this large low-pressure piston and then it comes
around through this insert core it is compressed a second time in this smaller
high-pressure piston and when we do that the compression coming out of the pump
jumps all the way up to about 175 pounds of pressure it comes out this discharge
tube and into the tank for for storage okay single stage is simply meaning that
the air is compressed once a single stage machine might be simply a single
cylinder or a two cylinder machine but essentially a single stage the air is
only going to be compressed just once in a two stage the air is compressed twice
in addition to giving you higher pressure it gives you faster recovery so
you’re able to do a lot more work with a two stage and use a wider array of tools
with the two stage then you could typically a single stage of shape our
Quincy machines are all made in America made in Quincy Illinois where we’ve been
building them for almost a hundred years we use heavy duty cast-iron crankcase as
a cast casting material the cylinder is heavy cast iron and on the head we use
aluminum we use aluminum because aluminum does a much better job of
dissipating the heat and when we design and build these machines everything is
focused on extending the life of our product here we use cast iron because
that’s a perfect wear material and we use an abundance of cast iron in these
particular parts so that it absorbs noise rather than resonates noise what
we also do here’s a heavy cast iron crankshaft hopefully you can see by the
size of this this is very heavy we use heavy-duty ball
bearings at both ends of the crankshaft we compete with folks who may use
bushings at both ends rather than heavy-duty ball bearings they also may
may use a a bushing at one end and just a ball bearing at the other we use
heavy-duty ball bearings in each end this is a 2-piece automotive style
connecting rod one of the things that we also do is we use a needle bearing at
the top of the wrist pin again our competitors don’t do this our
competitors are typically using a piece up here just ask cast so there’s nothing
here whatsoever or they might use a bushing but Quincy compressor uses
nothing but a heavy-duty needle bearing again just extending the life of these
machines about weight as you can see they go right in there
our valve sights we do things that our competitors again don’t really think to
do but our valve seats are machine ground and polished we also do something
that’s a process called coining we put this essentially a fixture and we hit it
with a with a press and it condenses these particular valve seats so it
eliminates any wear issues so that’s another huge advantage over here we use
a combination switch it is a pressure switch which is essentially a control
device telling this machine it when it starts to run it cuts off at 175 psi and
as you use the air in the air pressure and the tank drops to about 135 the
pressure switch will kick it in back back in automatically in the process
will simply repeat itself we call it a combination switch because
we also have thermal overload protection built into that switch to protect the
motor in the pressure switch in cases where the unit may be affected by
problems with the quality of electricity coming into the machine an electric
strike in those kind effects the other things that we have on our machine we
use a polyester air filter our competitors use either foam or a paper
air filter the advantages of polyester filter are such that
a polyester filter can be washed out with warm soap and water and the life of
the filter can be extended seven to ten times but really the biggest advantage
of a polyester filter is that compared to a paper or a foam filter those
filters will only filter down somewhere between a micron size of 10 and 10 and
50 a polyester will filter 10 to 50 times better meaning that the micron
size that can pass through here is all the way down to one so it does a
significantly better job of filtering the air before it’s compressed so that
the air going into the tank and the air coming out for your tools is 10 to 50
times cleaner the quit see difference is all about pump life we compete in a
world where most of our competitors have machines that lasts anywhere from two to
five thousand hours and wouldn’t it be terrific if we could say this was a
10,000 hour pump but actually our pumps are designed to last longer than 50,000
hours which is extraordinary just imagine that in terms of using a
compressor if you buy a compressor today and you turn it on and you use this
compression it runs eight hours a day five days a week 52 weeks a year you’re
probably going to look to rebuild our from our machines somewhere in the next
30 to 35 years and that’s extraordinary that’s what we mean when we say you know
you buy a Quincy and you really do buy it for life the reason these pumps are
lasts so long it all starts at the very heart and soul of our machine and that’s
the way we machine bore machine and bore our cylinders we do all of this in
Quincy Illinois and we do a better job of it than anywhere else in the world we
believe we have the best concentricity there’s best finishing hone in the
crosshatch design on our cylinder so it starts there but the other things that
we do we have a pump that’s running slow it’s running cool it’s running quiet and
we add design features like an aluminum head as I mentioned before we also use
copper discharge tubes and a copper unloader pipe over here some of our
competitors use aluminum aluminum is not as advantageous in this application
copper is really what you want to use competitors typically shy away from that
just because it simply costs more money we make it easy to drain your tanks you
know when we compress all this air it the compressed air goes into
the tank and the air expands cools off moisture drops down at the bottom of the
tank and before for a very short amount of time you start to collect quite a bit
of moisture so that tanks got to be drained every single day but if you have
a compressor as again as all of our competitors do you’ve got to get down on
all fours reach up underneath with your hand and try to bust loose the drain
and inevitably over time and that happens pretty quickly those drain
start to stick you can’t bust them loose and therefore you can’t get the moisture
out with a Quincy compressor all you have to do is reach down pull a
quarter-turn ball valve that has a nice extension that comes to the outside of
the tank so it’s easy to do, so if it’s easy to do people will drain
their tank more often hence the tank really should last a lot longer well
there are a few other things I’d like to share with you about Quincy compressors
initially as you probably are already aware of when you go to look at buying a
Quincy compressor you might notice it’s a little bit more expensive than the
other machines that are out there and it’s true our machine does cost a little
bit more upfront remember you’re getting a machine that properly taken care of
this is going to be a machine that if it’s used heavily it’s still going to
last 30 to 40 years over time while we’re a little bit more expensive up
front it absolutely has the lowest cost of ownership relative to other machines
in the marketplace and when compared with other machines in my opinion this
is absolutely the finest machine you’re ever going to be able to find anywhere.
Source : Quincy Training Two Stage
