Model#: DWWN31-481

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New or Recon items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Delta 31-481 26 in. Dual Drum Sander

  • Delta 31-481 26 in. Dual Drum Sander
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Freight Orders

Freight deliveries require a delivery time be scheduled and someone must be present at the time of delivery to inspect and sign for the merchandise. A representative from the freight carrier will call the phone number entered at checkout to schedule the delivery.

Liftgate Service

For freight deliveries, you have the option of adding a liftgate to your delivery. A liftgate is the device that lowers a product from the truck to ground level.

CPO recommends adding liftgate service for freight deliveries exceeding 100 lbs if you do not have a loading dock or fork lift at the delivery address. Additional charges may apply. The liftgate option will be presented during the checkout process.

Please note that liftgate service only ensures the product is removed from the truck. We recommend you have the additional help of two to four people to move the product to its desired location because drivers are not required to assist.

Requesting liftgate service after ordering may result in additional charges and delays.

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26 in. Dual Drum Sander
  • 26 in. Dual Drum Sander - 31-481
  • (2) 4 in. Integral Dust Ports
  • Feed Belt
  • (2) Sanding Drums
  • 80-Grit Sanding Strip
  • 120-Grit Sanding Strip
  • 26 in. Dual Drum Sander - 31-481
  • (2) 4 in. Integral Dust Ports
  • Feed Belt
  • (2) Sanding Drums
  • 80-Grit Sanding Strip
  • 120-Grit Sanding Strip


Weight: 418 lbs.
AC Voltage: 230V
Drum Speed (RPM): 1550
Dust Port Size: 4 in.
Horsepower: 3
Max. Board Thickness: 5 in.
Max. Board Width: 26 in.
Min. Board Length: 6 in.
Motor Phase: 1
Type: Stationary



3.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Would you recommend?
Yes (1)
No (1)
No, I would not recommend this to a friend
Did we make the right purchase decision?
Our woodworking club recently purchased this machine and placed it into service. It replaced a drum sander of another brand. Soon after, we found the front drum was not parallel to the feed table. We had to place shims under the left side of the feed table mounts that were almost 1 mm thick to get it parallel to the front drum.
The instructions on Pages 12 and 13 in the Operating Instructions for setting rear drum height and parallelism are confusing. In general, it is a very poor manual. Most manuals for drum sanders include information about dimensions of sanding strips. This one does not. The manual is titled Operating Instructions and Parts Manual. There is no "Parts Manual".
We purchased the Delta brand set of three sanding strips that are advertised to fit this machine. They are too short. The Delta's specs for this machine say the strips are 92 1/2" long, and that is the length of the strips that come in the set. However, when you try to install one of these strips, they are obviously too short. The strips that came installed on the machine are 93 1/2". That one inch makes a big difference.
Even though we have a robust dust collection system, lots of dust escapes and is dumped on the floor below the outfeed side of the feed table.
Maybe after we learn some things about this machine that the Operating Instruction should have made clear, and we receive the bulk abrasive belt material we have on order and can cut strips to the correct length, we will learn to love this machine. We will see.
February 19, 2016
Yes, I would recommend this to a friend
Great sander for any shop
Great for large glue-ups and small ones. Just love the finish and time savings. Works great on quartersawn Oak, NO tearout and NO snipe. Fantastic feed rate adjustment, and heavy duty belt. Sized just right, not too big or too small. In my little shop, it's hard to justify having a dedicated sander and giving up the floor space but it's well worth it when I consider the time savings and consistent finish. It would be nice if it were more mobile
July 13, 2012

Questions & Answers

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Browse 2 questions Browse 2 questions and 3 answers
Using 220 volts what is the amperage?
Studio on Dec 10, 2015
BEST ANSWER: A 3 HP 240V motor draws 17 amps and the feed motor would be about 2 amps
what size is it , does it sit on the floor
slick on Sep 4, 2015
BEST ANSWER: The Delta 31-481 dimension in inches are 51.87 in height, 32.68 in width, and 48.3 in depth. This unit is a floor mount unit.


Warranty for all Delta Machinery Products - Five Year Limited New Product Warranty (180 days for reconditioned products)

DELTA will repair or replace, at it’s expense, and it’s option, any new DELTA machine, machine part, or machine accessory which in normal use has proven to be defective in workmanship or material, provided that the customer returns the product prepaid to a DELTA factory service center or authorized service station with proof of purchase of the product within 5 years and provides DELTA with reasonable opportunity to verify the alleged defect by inspection. For all refurbished DELTA product, the warranty period is 180 days. DELTA will not be responsible for any asserted defect which has resulted from normal wear, misuse, abuse or repair or alteration made, or specifically authorized by anyone other than an authorized DELTA service facility or representative. Under no circumstances will DELTA be liable for incidental or consequential damages resulting from defective products. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty is DELTA’s sole warranty and sets forth the customer’s exclusive remedy, with respect to defective products; all other warranties, express or implied, whether of merchantability, fitness for purpose, or otherwise, are expressly disclaimed by DELTA.