Model # DW432

Internet #202512202

DEWALT 3 in. x 21 in. Belt Sander

Discontinued DEWALT

3 in. x 21 in. Belt Sander

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Product Overview

Dewalt offers the DW432 3 in. x 21 in. belt sander with powerful 8.0 Amp motor that aggressively removes material in a variety of applications. The all-metal housing provides users with increased durability if the tool is dropped. The three wheel design delivers a low center of gravity and longest 3 in. x 21 in. platen available. The innovative dust collection system is 20% more efficient than conventional dust bags. The two position front handle increases end user comfort while the tool is engaged. The top exit cord allows for ease of use in overhead applications. The tool is ideal for aggressive sanding of flat surfaces, paint and other surface material removal and scribing countertops.

  • Powerful 8.0 Amp motor aggressively removes material in a variety of applications
  • All-metal housing increases durability during a drop
  • Three wheel design delivers lowest center of gravity and longest 3 in. x 21 in. platen available
  • Innovative dust collection system is 20% more efficient than conventional dust bags
  • Dust collection shut-off valve eliminates dust stream toward user when collector is not in use
  • Two position front handle increases user comfort
  • Top exit cord allows for easy use of overhead receptacles
  • Rubber grip helps reduce the level of vibration felt by the user

Info & Guides

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Belt width
Product Depth (in.)
16.1 in
Product Height (in.)
6.8 in
Product Width (in.)
5.9 in


Amperage (amps)
Belt length
Case Included
Color Family
Cord Length (ft.)
Corded Tool Type
Belt Sander
Cordless/ Corded
Dust collection type
Maximum speed (ft./min.)
Minimum speed (ft./min.)
Product Weight (lb.)
Tools Product Type
Power Tool
Variable Speed

Warranty / Certifications

Certifications and Listings
CSA Listed
Manufacturer Warranty
90 Day Money Back Guarantee 1 Year Free Service Contract 3 Year Limited Warranty

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Customer Questions & Answers

Did they make one that's compatible

Asked by: john
Hi john, unfortunately we do not offer a <> on However, we do offer alternative <> options that may suit your needs. Please review the items and their details at the link I have provided below to see if any would work for your purposes: We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!
Answered by: THDSupport
Date published: 2016-05-27
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Customer Reviews

3 in. x 21 in. Belt Sander is rated 2.9 out of 5 by 8.
Rated 3 out of 5 by from Not for everyone This is a very good sander for the hobbyist or anyone that enjoys working with wood, but not for the contractor. These are the reason why I don't think this is a good sander for a contractor: 1) The trigger and motor tend to get clogged with dust and stop working. They require cleaning. Cleaning takes time. 2) It seems to kill belts faster than a makita or bosch. However, if you don't mind doing the maintenance, this is an excellent machine. It's very bottom-heavy and stays planted. It has ALOT of power. Probably the most powerful belt sander I have ever used. The platten is dead flat. Dust collection is better than average, but there is no such thing as a dustless belt sander.
Date published: 2007-01-01
Rated 4 out of 5 by from good for most people It seems Dewalt has fixed some of the flaws in their previous belt sanders. (A lot of them were burning out). It is a well designed machine and as stated by others has lots of power. I bought the sanding frame attachment and so far have not been very impressed with it - not very even/accurate. For most homeowners this would be fine. If you plan to do some heavy duty sanding though, get one of the professional Bosch sanders (some of them can be ordered with a sanding frame too); but be prepared to hand over your wallet. I also like that this sander can flush sand on the side (some don't) which can be useful when sanding floors etc.
Date published: 2008-01-24
Rated 4 out of 5 by from powerful tool A very strong and durable sander. A good choice for heavy material removal. The forward handle allows great control against the machine's torque. On the down side, the front handle and cord placement don't allow the tool to be turned over and used as a bench sander.
Date published: 2012-08-26
Rated 1 out of 5 by from I see why this sander is discontinued I had one of these Sanders 5 or 6 yrs ago. During the first heavy use the motor burned up. Problem was poor dust exhaust which collected on rear drum creating high load on motor. Unless of course you continually stop, remove belt and clean dust off drum.
Date published: 2012-08-10
Rated 4 out of 5 by from Dewalt, Not The Best, But You Could Do Worse. In the category of 3x21 variable speed belt sanders there really isn't that much competition. You can go with Porter Cable (an excellent sander, good control, light and manouverable but there are NO accessories), Hitachi (which is actually two speed not variable and to be honest they make better T.V.'s than tools), Bosch (their 4x24 VS is fantastic, but their 3x21, though well balanced, just doesn't feel very heavy duty), Ridgid (don't even bother with this one, dust collection is good but that's the only thing going for it, it's just not comfortable to use and accessories are limited), and Makita (light, easy to control, excellent dust collection, probably the best of the bunch though its priced as such, and no one seems to have it in stock), And the Dewalt. After using and comparing all of the above belt sanders I decided to go with either the Makita or Dewalt. I saw the Dewalt on sale with the stand and frame (from a competitor for less than H.D.) If it didn't cost less than the Makita with all the accessories, I'd have probably gone with the Makita, but since it was a sale price, and had all the accessories for less than the Makita alone, I went with it. The Dewalt is Heavy, 12 pounds I think, versus 8 for most of the others. Dust collection is pretty much non-existent. It does suck up SOME dust but you'll find a trail behind the sander at least twice the size what ends up in the bag. It does eat the wood though. It gets rid of wood faster than anything else you could buy (except maybe the Makita but no one has it in stock) And the accesories are excellent, it's got everything you could need. To be honest I'm not unhappy with it. I'd recommend it for several reasons, It handles nicely (Though you arm will get tired handling this heavy beast). Powerwise its pretty incredible, you could probably climb on and ride it like a clown car without it slowing down. It does get HOT! so you've got to wear gloves (touching any of the metal bits WILL make you sorry if you're not wearing them). The sanding frame is easy to attach (Every belt sander should come with a sanding frame). It's comfortable to use for long periods (after you build up your biceps, of course). The dust collection is a JOKE though, so wear a mask and only work in a well ventilated area. Despite it being well balanced and designed you'd think that dewalt would've gotten rid of that nasty design flaw all belt sanders have of leaning slightly to the left. All in all the Dewalt and Makita are the only 2 belt sanders worth considering in this category, so buy whichever is cheaper, You won't be disappointed by either, just avoid the rest or you WILL be.
Date published: 2007-03-19
Rated 5 out of 5 by from good tool I have owned this tool for a couple of years and do not have the problems many of the other people have had. I have no complaints for this tool.
Date published: 2015-07-02
Rated 1 out of 5 by from it stinks sander does not work, unit stinks don't buy one hardly used before it died. didn't even use it 5 times before the motor burned up!!!!!
Date published: 2012-09-21
Rated 1 out of 5 by from Burned up on first real use I have this sander. Like another reviewer, mine bunt up on the first heavy use. Don't waste your money on this model.
Date published: 2012-09-14
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