Powermatic 31A 6 x 48 in Belt and 12 in Disc Sander, 1.5 HP

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Product guide

Powermatic 31A 6 x 48 in Belt and 12 in Disc Sander, 1.5 HP

Powermatic 31A belt and disc sander 1791291K combines a 6 x 48-inch belt with a 12-inch disc for workshop sanding. Its belt head locks at multiple angles, while the tables tilt for angled work. Customer feedback is positive on construction and assembly, but mixed on dust collection and mobility.

At a glance

The belt head locks at any angle from 0 to 90 degrees, with indexing stops at 0, 45 and 90 degrees.
The belt table tilts down to 45 degrees for beveled and mitered sanding.
Precision-ground cast-iron tables have miter slots, and the listing describes them as designed for rigidity.
Listing claims a 1.5 HP motor and a prewired 115V single-phase setup that can be converted to 230V.

Price

$1,949.00Save 19%

Reference price: ~~$2,419.00~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Belt and disc sanding are combined in one machine, with a movable belt head for horizontal, vertical and intermediate positions.
Tilt-adjustable tables and miter slots support angled work and use of a miter gauge.
The included abrasive belt and disc are both listed as 60 grit.

Cons

At 247 pounds, the listed weight makes this a substantial machine to position or relocate.

Technical specifications

17 specifications

Identity
Brand	Powermatic
Model	1791291K

Power and battery
Power configuration	Corded Electric

Dimensions and installation
Dimensions listed	31.25"L x 24"W x 54.5"H
Weight listed	247 pounds

Sanding capacity and operation
Belt size	6 x 48
Disc size	12
Motor power	1-1/2 HP
Motor voltage and phase	115/230V 1PH
Belt speed	2410
Disc speed	2375
Belt-head positions	0, 45, 90 degrees
Belt table tilt	15 degrees up, 45 degrees down
Disc table size	14-1/2 x 6-1/2
Belt table size	13 x 7-1/2

Construction and dust collection
Table construction	Precision-ground cast iron
Platen and drums	Full cast iron platen with solid crowned aluminum drums

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title gives 1.5 HP and 115/230V, the feature text says 115V prewired with 230V conversion, the detailed description lists 115V at 12 amps and 230V at 6 amps, while another field lists 115 volts and 14 A. Dimensions and belt-table working heights also differ between sections. Confirm the exact electrical setup and specifications for the selected model before installation.

What’s in the box

Included

Belt and disc sander
60-grit abrasive belt
60-grit abrasive disc
Miter gauge
Fence
Disc table
Hardware
Stand

Who is it for?

A good fit for

Woodworkers and metalworkers who want belt and disc sanding on one stationary machine.
Workshop users who need adjustable belt-head positions and tilting tables for angled sanding.

Less suited to

Buyers who need a light or easily movable sander.
Buyers whose available electrical service or installation depends on a specific voltage or amperage without confirming the selected configuration.

Powermatic 31A 6 x 48 in Belt and 12 in Disc Sander, 1.5 HP · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 32 ratings

5 stars69%69%
4 stars17%17%
3 stars0%0%
2 stars6%6%
1 star8%8%

Customer feedback describes the machine as well built, with straightforward assembly, while reports about dust collection and mobility are mixed. Some customers say it runs without vibration, while others find it difficult to move. Those differences matter for a heavy stationary machine, especially if dust handling and frequent repositioning are priorities. Aggregate ratings lean positive but include lower ratings, so they do not establish how it will perform in a particular shop.

Positive themes

Customers describe heavy-duty construction and straightforward assembly.

Mixed feedback

Feedback on dust collection is mixed, with some saying it helps substantially and others reporting that some dust remains.
Mobility feedback differs. Some report vibration-free operation, while others say moving the machine is difficult.

Frequently asked questions

Can the belt head be set at different angles?

The listing says it locks from 0 to 90 degrees, with indexing stops at 0, 45 and 90 degrees.

Can the sander use 230V power?

The feature text says the machine is prewired for 115V single-phase and can be converted to 230V. Other listing details conflict on amperage, so confirm the electrical requirements for the selected unit before connecting it.

What sanding accessories are listed as included?

The manufacturer contents list names a 60-grit abrasive belt, a 60-grit abrasive disc, a miter gauge, a fence, a disc table, hardware and a stand.