delta 31-730 belt/disc sander

[kelly logan]

I have acquired a 1995 Delta 31-730 sander looking for a paper copy of manual any one out there know where I could get one also with so many types and brands of sanding belts out there which one holds up the best or is it the get what you pay for when it comes to sanding belts?

[Doug Garson]

Here is a PDF copy of the parts list and blow up diagram you can print out.

http://vintagemachinery.org/pubs/1141/2758.pdf

[Paul F Franklin]

I've been using the Klingspor belts with no issues. Just don't buy too many, of any brand/type. The glue line is the weak spot and when the belts get old it seems the glue deteriorates and the belt separates. AFAIK, this is an issue with all brands/types. A year or two isn't an issue, but when they get older than that they are prone to break.

[Kelly Foster]

Does anyone know the retail price of the Delta 31-730 combo sander?

[Steve Engelschall]

I inherited a Delta 31-730 (48x12) combo sander, circa 1988. My dad bought it new - the receipt is tucked into the owner's manual.
Sanding Machine: $600.00
Motor and Stand: $269.00
Miter Guage: $45.00
Total: $914 + tax

$914 in 1988 is worth $2147 today (2022)...

[Kelly Foster]

Thanks Steve. I'm going to assume it would be ~$1,500 in 2022 as I'm not sure too many folks would pay >$2,000 for a combo disc/belt sander.

[Bruce Page]

Delta Woodworking tools ceased to exist as we know it a decade ago. I don't think the 31-730 combo sander has been available for twice that long.
I picked up a used one in 2001 for $400, IIRC. I still have it and use it frequently.