Random Orbital Sanders | McMaster-Carr

	For Disc Diameter For Disc Diameter

3 1/2"

	Power Source Power Source

Air

Electric

	For Disc Mount Type For Disc Mount Type

Adhesive Back

Hook and Loop

	Orbit Diameter Orbit Diameter

3/32"

3/16"

3/8"

	Maximum No-Load Speed Maximum No-Load Speed

	Number of Speeds Number of Speeds

Variable

One

	For Air Hose ID For Air Hose ID

1/4"

3/8"

	Weight Weight

	Overall Length Overall Length

	Control Type Control Type

Lever

Dial

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Power Power

	Average Air Consumption Average Air Consumption

	Spindle Gender Spindle Gender

Female

Male

	Air Inlet Gender Air Inlet Gender

Female

Male

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Number of Vacuum Holes Number of Vacuum Holes

	Current Current

2.7A

	Stroke Length Stroke Length

3/32"

3/16"

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45 Products

Swirl-Free Air-Powered Disc Sanders

The orbital motion produces more consistent finishes than standard disc sanders. Also known as random orbital sanders. They work with either adhesive-back discs or hook and loop discs.

12 1/2"-long sanders give you more control than shorter sanders. They’re useful for sanding the vertical sides of workpieces because you can use two hands to control them.

Sanders with 3/8" orbit diameter are good for aggressive sanding, such as shaping material.

Sanders with 3/16" orbit diameter are useful for general purpose sanding.

Sanders with 3/32" orbit diameter are best for finishing pieces with ultra-fine sanding.

For technical drawings and 3-D models, click on a part number.

Sanders
				Spindle					Air Inlet							Replacement Backup Pads
For Disc Dia.	Max. No-Load Speed, rpm	No. of Speeds	hp	Thread Size	Gender	Average Air Consumption	O'all Lg.	Wt., lbs.	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes		Each		Each
3/8" Orbit Dia.
3 1/2"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	6"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	0000000	00000000	000000
5"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	6 1/2"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
6"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	7"	1 3/4	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
3/16" Orbit Dia.
3 1/2"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	6"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
5"	12,000	One	0.3	5/16"-24	Female	19 cfm @ 90 psi	7"	2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
5"	12,000	Variable	0.3	5/16"-24	Female	14 cfm @ 90 psi	6 1/2"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
6"	12,000	One	0.3	5/16"-24	Female	19 cfm @ 90 psi	7 1/2"	2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
6"	12,000	Variable	0.3	5/16"-24	Female	14 cfm @ 90 psi	7"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
8"	10,000	Variable	0.45	5/16"-24	Female	23 cfm @ 90 psi	12 1/2"	4	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
3/32" Orbit Dia.
3 1/2"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	6"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
5"	12,000	One	0.3	5/16"-24	Female	19 cfm @ 90 psi	7"	1 3/4	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
5"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	6 1/2"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
6"	12,000	One	0.3	5/16"-24	Female	19 cfm @ 90 psi	7 1/2"	2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000
6"	12,000	Variable	0.25	5/16"-24	Female	14 cfm @ 90 psi	7"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000

Dust-Collecting Swirl-Free Air-Powered Disc Sanders

These sanders come ready to hook up to a self-contained dust collection kit (sold separately). The orbital motion produces more consistent finishes than standard disc sanders. Also known as random orbital sanders. Use with adhesive-back vacuum sanding discs.

Sanders
					Spindle					Air Inlet							Replacement Backup Pads
For Disc Dia.	No. of Vacuum Holes	Max. No-Load Speed, rpm	No. of Speeds	hp	Thread Size	Gender	Average Air Consumption	O'all Lg.	Wt., lbs.	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes		Each		Each
5"	5	12,000	Variable	0.3	5/16"-24	Female	14 cfm @ 90 psi	8 1/2"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	0000000	00000000	000000
6"	6	12,000	Variable	0.3	5/16"-24	Female	14 cfm @ 90 psi	9"	1 1/2	1/4	NPT	Female	1/4"	Backup Pad	00000000	000000	00000000	00000

Required Dust-Collection Kit

00000000

Each

000000

Air-Powered Wet Sanders

With a built-in water hose that lubricates your work surface and washes away the resulting grit, these sanders are less likely to scratch your surface than other air-powered sanders. They also extend the life of your sandpaper. Use them to polish molds, car bodies, and other surfaces that are easy to scratch. Their random orbital motion creates a finish that’s free of swirls and more consistent than standard disc sanders. Pair them with hook and loop sanding discs; swap discs out using the quick-release pad.

Sanders

Sander

			Spindle					Air Inlet					Hose
For Disc Dia.	Max. No-Load Speed, rpm	No. of Speeds	Thread Size	Gender	Average Air Consumption	O'all Lg.	Wt., lbs.	Pipe Size	Thread Type	Gender	For Air Hose ID	Includes	Lg., ft	Material	Color		Each
6"	13,000	Variable	5/16"-24	Female	11 cfm @ 90 psi	7"	2.5	1/4	NPT	Male	3/8"	Backup Pad, Water Hose with Built-In Filter	20	Vinyl Plastic	Blue	0000000	0000000

Replacement Parts

Replacement Hook-and-Loop Pad Face

Replacement Backup Pad

Component	For Disc Dia.		Each
Hook-and-Loop Pad Face	6"	0000000	000000
Backup Pad	6"	0000000	00000

Swirl-Free Electric Disc Sanders

The orbital motion produces consistent finishes. These sanders draw dust away from your work surface into a collection canister. Also known as random orbital sanders. Use with hook and loop sanding discs.

Sanders
		No-Load Speed, orbits/minute												Replacement Backup Pads
For Disc Dia.	No. of Vacuum Holes	Min.	Max.	No. of Speeds	O'all Lg.	Wt., lbs.	Voltage	Current, A	Specifications Met	Includes	Features		Each		Each
5"	8	4,000	12,000	Variable	10 7/8"	3.5	120V AC	3	UL Listed	Backup Pad	Dust Collection Canister, Removable Front Handle, Speed Lock-On Button	00000000	000000	00000000	000000
6"	8	4,000	10,000	Variable	12 1/8"	5.2	120V AC	2.7	UL Listed	Backup Pad, Sanding Disc	Dust Collection Canister, Removable Front Handle, Speed Lock-On Button	00000000	000000	00000000	00000

Robot-Ready Sanders

Automate sanding on your line by attaching these sanders to a robot arm. Compared to sanders operated by humans, these apply the same force and pattern for a more consistent and repeatable finish. To program them, connect them to your robot controller using the solenoid valves with wire leads. They’re certified by Universal Robots (UR), which means they’ve validated that these sanders are compatible with their arms. To help ensure an accurate finish, use a force torque sensor (not included).

Attach these sanders to your robot’s wrist with mounts for end of robot arm and robot tool (each sold separately). The mounts for end of robot arm have a mounting pattern that conforms to ISO 31.5 mm, 40 mm, and 50 mm, so they’ll work with most industrial robots and cobots. Since they’re a quick-connect tool changer, they let you switch out one sander for another without taking apart hardware.

Add an air coupler to install your own quick-connect fittings for the air input on these sanders.

Disc sanders, or random orbital sanders, move in both circular and back and forth motions. That’s why they leave minimal swirl patterns and aren’t limited to moving with the grain of your workpiece. However, these sanders can’t fit into corners because their pads are circular.

Sanders with a 3/16" stroke length work for general purpose sanding (best for grits 100 to 240), such as deburring, texturing, and adding smooth finishes. Sanders with a 3/32" stroke length are for ultra-fine sanding (best for grits greater than 280), including extra-smooth finishing and polishing.

Add a debris collection system to keep the area clean. If you’re using them in a hazardous location where large amounts of debris could be flammable, be sure to use a system that’s certified for your location.

Sanders

Disc Sander

	For Disc				Spindle					Air Inlet
Stroke Lg.	Dia.	Mount Type	Max. No-Load Speed	Power, hp	Thread Size	Gender	Average Air Consumption @ Pressure	O'all Lg.	Wt.	Pipe Size	Thread Type	Gender	Includes		Each
Disc
3/16"	5"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	Solenoid Valve with Wire Leads	00000000	000000000
3/16"	6"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	Solenoid Valve with Wire Leads	00000000	00000000
3/32"	5"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	Solenoid Valve with Wire Leads	00000000	00000000
3/32"	6"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	Solenoid Valve with Wire Leads	00000000	00000000

Mounts for End of Robot Arm

Low-Profile Mount for End of Arm

Low Profile—Black PTFE-Coated Aluminum
Bolt Circle Dia. (Mount. Hole Pattern Compatibility)	Mounting Fasteners Included	Mounting Plate Dia., mm	Max. Load Cap.	Wt.	Lg., mm		Each
31.5 mm (ISO 31.5) 40 mm (ISO 40) 50 mm (ISO 50)	Yes	83	110 lbs. / 50 kg	0.53 lbs. / 0.24 kg	19	00000000	0000000

Mounts for Robot Tool

Low-Profile Mount for Robot Tool

		Mounting Plate
Bolt Hole Thread Size (No. of Holes)	Mounting Fasteners Included	Lg., mm	Wd., mm	Wt.	Lg., mm		Each
Low Profile—Black PTFE-Coated Aluminum
M6 (4)	No	62	38	0.16 lbs. / 0.07 kg	12	00000000	000000

Air Couplers

Air Coupler

Female Threaded Air Connection		Female Quick-Disconnect Air Connection		Male Threaded Air Connection		Male Quick-Disconnect Air Connection
Pipe Size	Thread Type	Coupling Size	Quick-Disconnect Shape	Pipe Size	Thread Type	Coupling Size	Quick-Disconnect Shape		Each
1/4	NPT	1/4	Industrial	1/4	NPT	1/4	Industrial	00000000	000000

Replacement Sanding Pads

Replacement Disc Sanding Pad

Disc
Dia.	Mount Type		Each
5"	Hook and Loop	00000000	000000
6"	Hook and Loop	00000000	00000

Replacement Sanders

Replacement Disc Sander

	For Disc				Spindle					Air Inlet
Stroke Lg.	Dia.	Mount Type	Max. No-Load Speed	Power, hp	Thread Size	Gender	Average Air Consumption @ Pressure	O'all Lg.	Wt.	Pipe Size	Thread Type	Gender		Each
Disc
3/16"	5"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	00000000	000000000
3/16"	6"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	00000000	00000000
3/32"	5"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	00000000	00000000
3/32"	6"	Hook and Loop	12,000 rpm	0.28	5/16"-24	Male	18 cfm @ 90 psi	5"	3.3 lbs. / 1.5 kg	1/4	NPT	Female	00000000	00000000