Delta 31 300 6 Inch/12 Inch 1 1/2 Horsepower Open Stand Belt/Disc Sander, 120/240 Volt 1 Phase

Customer Reviews

Delta Industrial 31-300 6" Belt/12" Disc Sanding Center

2004-11-16
This machine has many good points. It is well constructed, it is sturdy and essentially unmovable. The tables are easy to align with the sanding surfaces. It has loads of power and can remove stock amazingly fast. However, to rate the dust collection system as poor gives it a compliment. It is abyssmal. You need to be outdoors or wear a dust mask when using the disc sander for any heavy sanding. The only place on the disc that collects any dust is when you sand on the outer 1 inch of the disc. Any further in than that and most of the dust come out the other side of the disc. A little detective work showed that there is only a small vacuum inlet (about 1 1/2 by 3 inches). Any dust that escapes this vent is blown back into the shop. The belt sander is only marginally better.

I like it but still too early to give 5 stars

2004-01-20
I purchased this sander about two months ago from Tool Crib to replace a Sears's stationary sander that is 20 years old. Compared to my old sander this is one heck of a machine. Very heavy and solid. Much more powerful than the Sears sander it replaced.

Pros:
Price: The least expensive sander in its category.

Heavy Duty! This is a beefy machine compared to the Craftsman. Appears to be a quality, industrial grade tool. Be sure to run a dedicated 30A circuit for this sander. I ran a new 30A, 120-volt circuit, but ran my shop vac and sander on the same circuit and tripped the breaker several times in less than 10 minutes.

Powerful! You cannot stop the sanding belt no matter how much pressure you put on your work piece. Aggressive sanding with the belt that shipped with the sander.

The 12" disk sander works very well. The tables seem flat and generously large compared to my old machine. The stand, even though having 4 legs instead of a cabinet is sturdy and stable.

Cons:
Not too much of a problem, but worth mentioning: the sanding surface is several inches shorter than the Sears sander (same belt size 6 x 48 inches) because the front roller on the Delta has a much larger diameter than my old Sears model.

There is a small tag riveted to the top of the unit, just proud of, and parallel to the sanding belt on the right side. As you move your work piece side to side while sanding, the tag won't let you move a wide board off the right side of the belt. Again, not too big a problem, just grind off the rivets attaching the metal tag and remove it. Delta should re-evaluate placing the tag there in the first place.

The tracking of the belt that shipped with my sander does move from side to side while in use, and I can't seem to stop the movement by adjusting the tracking. It's possible the sanding belt is defective, I'm going to try a new sanding belt to see if that helps. Even though the sanding belt tracks side to side, it does not come off, and I am able to use the machine. If this is normal tracking for this machine I'll be disappointed, I'd think the belt should track pretty much perfectly straight. But, like I said, it's still too early to say for sure.

The Dust collection port is sized for a 4-inch dust collection hose. I use a Porter Cable shop vacuum with a 2 1/2-inch hose. Delta does not offer an adapter that allows easy use of a 2 1/2-inch hose. At Delta Customer Support I was advised to have an adapter fabricated at a sheet metal shop. That is a dumb remedy on the part of Delta. However, the dust collection hood that was a part of my Dewalt 734 thickness planer came with a plastic adapter that works perfect. It slips over and attaches to the Delta 4" dust port, and a standard 2 1/2" vac hose slips inside the adapter. No hose clamps are needed. The adapters are available from the Dewalt web site, listed as a replacement part for the DW734 for $3 each. Delta should get smart and ship their product with a similar adapter.

Conclusion: Again, I have not used this machine long enough to know everything about it, nor have I used any other sander in this catagory other than my old Sears model to compare it to. I do have a few other quality machines for comparison, old Delta Unisaw, Powermatic 8" jointer, etc., and I think the Delta sander is close to being in that class. Over all, I like the sander, and would purchase it again if I had it to do over.