Technical Specifications

• Powerful 1 HP, 110V motor with 1,725 RPM spindle speed and
71 oscillations per minute
• Fully enclosed, heavy duty steel frame construction for optimum
dust management and minimum vibration
• 24 5/8 in. x 24 1/2 in. precision ground cast iron table
• 1 1/2 in. oscillating action uses more of the sleeve, prolonging
life of the sleeve while protecting wood from excess heat
created by a fixed oscillating spindle
• Unique 0° to 45° tilting spindle arbor design allows for adjusting
the sanding angle and to bevel sand while the table remains flat
• Adjustable positive stops at 45° and 90° and large bevel scale
for accuracy and convenience
• Heavy duty, cast iron trunnion system supports oil bath gear
box; provides increased stability and accuracy
• Smooth precision ball bearings support the main spindle and
heavy duty worm and gear mechanism drives the oscillations
• Removable rear access panel making spindle adjustments and
changes easier
• Oversized cast iron, chrome polished tilt wheel with knurled lock
knob
• On-tool storage for all inserts, spindles and wrenches
• Includes 10 interchangeable threaded spindles with 100 grit
sanding sleeves (1/4 in., 3/8 in., 1/2 in., 5/8 in., 3/4 in., 1 in.,
1 1/2 in., 2 in., 3 in., and 4 in.), 6 inserts, power lock-off pin
and 2 wrenches
• Motor: 1 HP, 110V, 1 Phase
• Speeds: 1,725 RPM, 71 OPM with 1 1/2 in. oscillation length
• Table: 24 5/8 in. x 24 1/2 in., fixed, precision ground cast iron
• Table Height: 38 3/8 in.
• Insert Diameter: 8 3/4 in.
• Dust Port: 4 in.
• Base Dimensions: 24 3/4 in. depth x 19 3/4 in. width
• Dimensions (D x W x H): 24 3/4 in. x 19 3/4 in. x 38 3/8 in.
• Max Depth w/ Handle and Motor Cover: 38 in.
• Shipping Dimensions: 31.10 in. x 29.92 in. x 45.67 in.
• Weight (Net): 374 lbs. / 396 lbs. (Shipping)
Specifications
Features
Accessories (Sold Separately)
DELTA Accessories are covered by a 2 Year Warranty
Heavy Duty Oscillating Floor Spindle Sander
31-484
3 Pk. Aluminum Oxide Sanding Sleeves for 31-484 (listed by size)
31-868
3/4 in. x 9 in. 80 Grit Sanding Sleeves
31-874
1 1/2 in. x 9 in. 80 Grit Sanding Sleeves
31-880
3 in. x 9 in. 80 Grit Sanding Sleeves
31-869
3/4 in. x 9 in. 120 Grit Sanding Sleeves
31-875
1 1/2 in. x 9 in. 120 Grit Sanding Sleeves
31-881
3 in. x 9 in. 120 Grit Sanding Sleeves
31-870
3/4 in. x 9 in. 150 Grit Sanding Sleeves
31-876
1 1/2 in. x 9 in. 150 Grit Sanding Sleeves
31-882
3 in. x 9 in. 150 Grit Sanding Sleeves
31-871
1 in. x 9 in. 80 Grit Sanding Sleeves
31-877
2 in. x 9 in. 80 Grit Sanding Sleeves
31-270
4 in. x 9 in. 80 Grit Sanding Sleeves
31-872
1 in. x 9 in. 120 Grit Sanding Sleeves
31-878
2 in. x 9 in. 120 Grit Sanding Sleeves
31-271
4 in. x 9 in. 120 Grit Sanding Sleeves
31-873
1 in. x 9 in. 150 Grit Sanding Sleeves
31-879
2 in. x 9 in. 150 Grit Sanding Sleeves
31-272
4 in. x 9 in. 150 Grit Sanding Sleeves
Easy-to-Read
Upfront Bevel Scale
and Oversized, Cast
Iron Tilt Wheel
Includes 10 spindles with sanding sleeves, 6 inserts
and 2 wrenches that store neatly on the tool
Unique 0° to 45°
Tilting Spindle
Arbor Design; the
Table Remains Flat