CFM from an old Sanborn Model 112a300-30

I need help find cfm for an old Sanborn Model 112a300-30.

I am an auto body tech and I am about to start a restoration and I was given an air compressor since I don't have one in my garage. I was wondering what all air tools I could use with this model.
Thank you,

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Jun 08, 2015
"input" @Matt
by: Doug in

Quite possibly.

But generally you have to set up (rewire) the motor for the voltage you want to use.

Typically, the wiring diagram will be under the cover near where the power wires enter the motor, or on an outside label.

Jun 08, 2015
old days
by: Anonymous

From back in the day when I worked there the old numbering system was like this.

112A300-30 = 11.2 cfm a = electric 300 is 3.0 hp 30 is tank size in gallons (non certified tank)

104a200-22 same 10.4 cfm 2 hp
44a75-15 etc

I think the volume rating was at 45 psi. Long time ago

Jun 08, 2015
by: Doug in

You may be able to paint, depending on what the actual output is.

If you want to do sanding and polishing (long-term work with rotary tools), it's probably a bit small for that. Can't hurt to try, though.

Jun 08, 2015
by: Matt

I was told it can be used with either inputs.

Jun 07, 2015
CFM from an old Sanborn
by: Bill

Unless you have the specs you cannot see what the manufacturer suggests is the output of the air compressors.

However, using the rule of thumb, you can come close.

Is this model the 3 HP motor version? If so, is the 240 or 120 volt motor? If it's the 240 volt motor, expect to get around 8-12 CFM of compressed air at 90 PSI if the compressor is up to snuff.

If the power supply is 120 VAC, I'm guessing 6-9 CFM at 90 PSI.


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