How old is my Binks air compressor

by Richard Zeleny
(Maple Grove, Mn.)

Binks air compressor

Binks air compressor

Binks air compressor
Binks air compressor
Binks air compressor
Binks air compressor

I have an old Binks air compressor that was my dads, maybey even my grandfathers. I am trying to find out aruond the year it was made. On the base is a template that says Binks No.2 Unit. The tag on the compressor has Model 251-T and serial G-48601, on the top of the compressor 11779, by the shaft 6A9A or 6494. At the bottom of the air tank is 770. The motor is a 1/2hp Kalvinator Motor 710, Model 3565, serial H-2-1, Delco Products Corp.It has an adjustable relief valve to regulate the air pressure. My dad did some spray painting with it in the 60s. It had been sitting in the garage since the early 70s. I cleaned it up and turned it on and it works fantastic. Any imformation on it would be appreciated. thanks RCZ

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May 21, 2015
CFM of Binks
by: Bill

Frank, in the absence of a manual that should provide this info, simply multiply the HP of the electric motor by 3.5. This will give you the approximate flow of air from this compressor at around 90 PSI.

May 21, 2015
I have a Binks air compressor model #33-1097
by: Frank

I am trying to find what the cfm are on my air compressor can you point me in the right direction

Oct 25, 2014
Best Guess
by: Becky Binks

Based on family photos I've seen, this is possibly from the 20s or 30s.

Nov 19, 2013
wheres the tank
by: Rich

The tank is the ribbed unit in the middle, right next to the compressor. Its not real big but works good for paint spraying, airing up tires and such.

Nov 18, 2013
binks
by: Doug in s.d.ca

Cool. I don't see the tank, where is it?

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Compressor oil in tank

by Justin
(Mentor,Oh)

Hello, I have a Binks gasoline powered compressor. I am having trouble keeping the oil in the compressor and it is ending up in the tank. I am adding a few ounces of comp. oil every time I start it up. Is there anything that I should be doing differently?

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Jan 19, 2015
oil
by: Doug in s.d.ca

You probably do have at least some leakage by the piston, but what oil are you using?

Jan 19, 2015
Compressor oil in Binks tank
by: Bill

Hey Justin...

Typically the only way oil gets from the oil sump into the tank is by bypassing the piston seals.

From the sounds of it, your compressor piston seals are in bad shape since so much oil is getting by.

By the same token, your compressor is working harder than it should have to as not all the air being compressed is driven into the tank. Some is blowing by the piston seals into the sump.

How old is your Binks compressor, and has there been maintenance done on it? If not, maybe it's time.

Bill

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Old binks compressor, no motor, need specs please

Bill, I have a tank with an old binks compressor. No motor, need specs and what motor to install

model#33-566
ser#310-22 ?429027-L Thank You

Greg@gc_lizak@yahoo.com

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Jun 30, 2015
Calculating pump rpm
by: Doug in s.d.ca

It's a ratio thing -

(Pi and size units are involved, but cancel out)

mpd * mrpm = psd * prpm

where:

mpd is motor pully diameter

mrpm is motor RPM

psd is pump sheave diameter

prpm is pump RPM

So, in your existing case, we substitute known values and solve for prpm:

4 * 1725 = 14 * prpm

6900 = 14prpm (simplify and then divide by 14)

493 = prpm , which is a reasonable low-end rpm for a small motor on your pump.

HTH.


Jun 29, 2015
Compressor Head Pulley Dia.
by: Larry Gill

Thank you for the reply! The comp. pulley dia is 14". I started to do the math but found no formula to complete the equation!

I've also looked at the lubricating oil in the sump (on the dip stick). It's as clear as new oil and I can say that I've known this compressor since I started to work at the fire dept. in 1993, and know that the oil was never changed in that time frame.

So I'm hoping that shows that the compressor isn't self destructing as we speak!

If someone could post the formula that I need to do that math problem, I'd appreciate it!

Thanks,
Larry Gill
East China Mi.
810-650-2224
lawrencegill@sbcglobal.net

Jun 29, 2015
Larry's problem
by: Doug in s.d.ca

Yes, it could be valves, but we need to know what the PUMP speed is.

That means:

motor rpm = ( 1725 )

Motor pully diameter = ( 4" )

pump pully diameter = ?

The result should be in the 400 to 920 pump RPMs.

We can probably tell if the pump is sick knowing all these values. A pump pully between about 8 to 17 inches would put the pump in its operating range.

Jun 29, 2015
No air build up in Binks compressor
by: Bill

Larry, if the compressor motor is running without lugging, and the compressor starts and stops at the correct cut in and cut out, then it is likely the pump itself that has a problem.

Yes, I would look to the valves, gaskets, and cylinder piston seals as issues.

The troubleshooting page on this site about why air compressors run but don't build pressure would be a good read for you.

Bill

Jun 29, 2015
A little MORE help, please!!!
by: Larry in East China Mi.

Bill,

I too have a Binks Model #366-566

Serial #310-24 6208-07L

Mine has a 1.5 H.P. electric motor.

Specs are as follows: 220vac
9.8 amps
1725 rpm's
4" dual pulley belt
The specs call for a 2-3 H.P. motor.

My problem is the compressor takes over 20 minutes to fill to the point of shut-off.

What rpm would we want the 2-3 hp motor turn at?

Would this motor help fill the tank any faster? The 1.5 hp motor doesn't seem to be lugging or loaded while it's running.

The horizontal tank is about 5 ft. in length, not sure of the "gallon" capacity. Someone told me maybe the reed valves aren't working properly.

Your thoughts...

Any info on this would be greatly appreciated.

Thanks,

Larry Gill
east China Mi.
lawrencegill@sbcglobal.net

Apr 19, 2015
Here's what you are looking for
by: Kilohurtz

The Pump is a Quincy 310 ROC 22 (ROC is Record of Change... like a version number).. it's the smallest 2 stage pressure lubed QR series Pump..

Specs are:
2-3 HP Motor
400/920 Pump RPM - MIN/MAX
3.9/9.63 ACFM @ 175 PSIG - MIN/MAX
200 PSIG MAX Continuous
500 PSIG MAX Intermittant

Parts breakdown manual is available at quincycompressor.com - search "310" in the brochure/manuals section.. you want the manual dated 12/1/1964 on page 3 of the results..

most parts are still available.. some are harder to find these days.. but that same pump is still in production..

Nice pump.. it will outlast all of us if it's cared for..

Good Luck..
Kilohurtz

Mar 10, 2015
Binks
by: Doug in s.d.ca

As noted elsewhere, your actual compressor pump may be a Quincy.

Is there a number on the pump?

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Unloader leaking

by Chuck
(Niles, IL, USA)

Are any parts available thru Quincy for the old unloaders? If not I'll have to replace the unit.

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Jun 17, 2015
unloader leaking?
by: Anonymous

If it is leaking out of the hole near top of unloader tower it is probably the diaphragm (rubber gasket with reinforced cords)

Dec 10, 2014
Binks compressor unloader valve leaking
by: Bill

Be good if we knew the model Chuck.

Are you sure it's the unloader leaking? If your tank check valve has some crud in the seal seat and it's not closing tightly, air will leak out of the unloader valve all the time the compressor is off.

If you have checked that already, start a new thread, and upload a couple of images of the unloader valve on your compressor now, and we'll see if we can help find you a new one.

Cheers,

Bill

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