Polishing Machines | McMaster-Carr

	Load Capacity Load Capacity

	Voltage Voltage

120V AC

240V AC

	Weight Weight

	Power Source Power Source

Electric

Air

	Maximum No-Load Speed Maximum No-Load Speed

	Power Power

	Plug Type Plug Type

Two Prong

Three Prong

	For Media Material For Media Material

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

DFARS Specialty Metals
COTS-Exempt

	Current Current

	Control Type Control Type

	Number of Speeds Number of Speeds

Variable

One

	Cord Length Cord Length

	Overall Height Overall Height

	Overall Length Overall Length

	Overall Width Overall Width

	For Buffing Wheel Diameter For Buffing Wheel Diameter

	Motor Shaft Diameter Motor Shaft Diameter

5/16"

1/2"

3/4"

	Inside Bowl Diameter Inside Bowl Diameter

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

REACH Compliant

	Inside Bowl Height Inside Bowl Height

4 1/2"

7 1/2"

	Capacity Capacity

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

RoHS Compliant

RoHS Compliant with
Exemptions

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52 Products

Electric Buffer/Polishers

Hold one buffing or polishing wheel on each spindle.

Wheel guards (sold separately) protect your work area from flying debris.

Buffer/Polishers—One Speed

For Buffing Wheel						Overall
Arbor Hole Dia.	Dia.	Thick.	Max. No-Load Speed, rpm	Power, hp	Motor Shaft Dia.	Lg.	Wd.	Ht.	Wt., lbs.	Control Type	Current (Voltage)	Plug Type		Each
1/2"	6"	1/4"-1"	1,800	1/4	1/2"	18 1/2"	10"	10 1/2"	17	On/Off Switch	2.8A (120V AC)	Three Prong	000000	0000000
1/2"	6"	1/2"-3/4"	3,600	1/3	1/2"	19"	7 3/4"	9 3/4"	25	On/Off Switch	4.2A (120V AC)	Three Prong	0000000	000000
3/4"	8"	3/8"-1 1/4"	3,600	3/4	3/4"	28 1/2"	8 1/2"	11 1/2"	56	On/Off Switch	2.4A (240V AC) 4.8A (120V AC)	Three Prong	0000000	00000000

Pedestals

	Base
Ht.	Wd.	Dp.	Wt., lbs.	Material		Each
32 7/8"	15 3/4"	14"	62	Iron	000000	0000000

Wheel Guards

For Buffing Wheel Dia.	Exhaust Vent Dia.	Material	For Buffer Shaft Location	Includes		Each
8"	4"	Steel	Right Side and Left Side	Left & Right Wheel Guard, Mounting Fasteners, Mounting Hardware	0000000	0000000

Electric Buffer/Grinders

Use one wheel for buffing and the other wheel for occasional tool cleaning, sharpening, and touch-up work.

For Buffing Wheel		For Grinding Wheel			No-Load Speed, rpm				Overall
Max. Arbor Hole Dia.	Max. Dia.	Arbor Hole Dia.	Max. Dia.	Max. Thick.	Min.	Max.	Power, hp	Motor Shaft Dia.	Lg.	Wd.	Ht.	Wt., lbs.	Control Type	Current (Voltage)	Plug Type	Includes		Each
Variable Speed
3/8"	4"	1/4"	2"	3/4"	500	7,000	1/6	5/16"	13"	5"	5 1/8"	8	Dial	1.8A (120V AC)	Three Prong	Tapered Spindle for Buffing Wheels 3" Diameter Buffing Wheel Wheel Arbor for Grinding Wheels 1 3/4" Diameter Grinding Wheel	000000	0000000

Replacement 1 3/4" Dia. Grinding Wheel	0000000	Each	00000
Replacement 3" Dia. Buffing Wheel	0000000	Each	0000

Swirl-Free Polishers

Eliminate swirl marks without damaging painted surfaces. Also known as a random-orbital polisher. The counterbalanced bottom plate reduces vibration.

One Speed
For Bonnet Dia.	Max. No-Load Speed	Wt., lbs.	Control Type	Current (Voltage)	Plug Type	Includes		Each
10"	3,200 orbits/min.	9	On/Off Switch	0.8A (120V AC)	Two Prong	Two Terry Cloth Polishing Bonnets Two Terry Cloth Applicator Bonnets Two Polyester Polishing Bonnets One Polyester Wash Mitt	000000	000000

Replacement Terry Cloth Applicator Bonnet	Pkg. of 2	00000
Replacement Polyester Fabric Polishing Bonnet	Pkg. of 2	00000
Replacement Terry Cloth Polishing Bonnet	Pkg. of 2	0000

Electric Angle Polishers

Attach polishing bonnets to the included backup pad or attach buffing wheels with a threaded arbor hole directly to the threaded spindle. The two-position side handle allows left- and right-hand operation.

Variable Speed
Spindle Thread Size	Max. No-Load Speed, rpm	O'all Lg.	Wt., lbs.	Control Type	Current (Voltage)	Plug Type	Includes		Each
5/8"-11	3,500	17"	6 1/2	Trigger	12A (120V AC)	Two Prong	7" Diameter Backup Pad	0000000	0000000

Replacement Backup Pad

0000000

Each

000000

Air-Powered Angle Polishers

									Air Inlet
Spindle Thread Size	Max. No-Load Speed, rpm	Power, hp	Average Air Consumption	O'all Lg.	Wt., lbs.	Control Type	Exhaust Port Location	For Air Hose ID	Pipe Size	Thread Type	Gender	Includes		Each
Variable Speed
5/8"-11	2,500	2/5	8 cfm @ 90 psi	16"	4 1/2	Lever	Front	3/8"	1/4	NPT	Female	7" Diameter Backup Pad	00000000	0000000

Reciprocating Polishers

Use these air-powered tools with lapping sticks and smoothing and polishing stones. Also known as profilers. Polishers must be used with an air filter/regulator/lubricator (sold separately).

For Max. Stone										Air Inlet
Wd.	Thick.	Stroke Lg.	Max. No-Load Speed, strokes/min.	Average Air Consumption	O'all Lg.	Wt., lbs.	Control Type	Exhaust Port Location	For Air Hose ID	Pipe Size	Thread Type	Gender		Each
Variable Speed
1/2"	1/4"	0.028"	28,000	1.8 cfm @ 90 psi	8"	1/2	Dial	Rear	3/8"	1/4	NPT	Female	0000000	0000000
1/2"	1/4"	0.118"	10,000	2.8 cfm @ 90 psi	8"	3/4	Dial	Rear	3/8"	1/4	NPT	Female	0000000	000000

Air Filter/Regulator/Lubricator

00000000

Each

0000000

Polishing Bonnets

Elastic Mount

These bonnets won’t leave swirl marks or scratches when polishing waxed surfaces. Attach to the backup pad on your portable polishing tool. Order a bonnet one size larger than your pad.

Polyester Fabric with Elastic Mount

Dia.	Pile Ht.	Max. Speed, rpm	For Surface Type	Pkg. Qty.		Pkg.
10"	1/2"	3,200	Flat	2	0000000	000000

Terry Cloth with Elastic Mount

Dia.	Max. Speed, rpm	For Surface Type	Pkg. Qty.		Pkg.
10"	3,200	Flat	2	0000000	00000

Applicator Bonnets

Before you buff, use these bonnets for easy application of waxes and polishes. Attach to the backup pad on your portable polishing tool. Order a bonnet one size larger than your pad.

Terry Cloth with Elastic Mount
Dia.	Max. Speed, rpm	For Surface Type	Pkg. Qty.		Pkg.
10"	3,200	Flat	2	0000000	00000

Heavy Duty Vibrating Machines

The thick bowl can handle steel media and heavy loads. These machines keep parts in constant motion for faster finishing than tumbling machines. The clear lid lets you see work in progress and the drain makes cleanup easier. Fill with media and run wet or dry to finish multiple parts at the same time. Machines can be filled to 100% capacity. They cannot be sold to Canada due to local energy efficiency regulations.

		Bowl			Overall
For Media Material (Load Capacity)	Cap., cu. ft.	Inside Dia.	Inside Ht.	Material	Dia.	Ht.	hp	Current, A	Cord Lg., ft.	Vibration Setting Type	Control Type	Wt., lbs.	Cannot Be Sold To		Each
120V AC—Three-Prong Plug
Steel (120 lbs.) Ceramic (50 lbs.) Corn Cob, Plastic, Porcelain, Walnut Shells (Not Rated)	0.25	14"	6"	Plastic	14"	20"	1/4	5	5	Adjustable	Timer	38	Canada	00000000	000000000
Steel (230 lbs.) Ceramic (90 lbs.) Corn Cob, Plastic, Porcelain, Walnut Shells (Not Rated)	0.5	17"	7 1/2"	Plastic	17"	22"	1/3	5.9	5	Adjustable	Timer	45	Canada	00000000	00000000
Steel (340 lbs.) Ceramic (150 lbs.) Corn Cob, Plastic, Porcelain, Walnut Shells (Not Rated)	1	20"	9"	Plastic	20"	24"	1/2	8.8	5	Adjustable	Timer	63	Canada	00000000	00000000

Vibrating Machines

Keep parts in constant motion for faster finishing than tumbling machines. Fill with media and run wet or dry to finish multiple parts at the same time. These machines can be filled to 100% capacity.

		Bowl			Overall
Load Cap., lbs.	Cap., cu. ft.	Inside Dia.	Inside Ht.	Material	Dia.	Ht.	hp	Current, A	Cord Lg., ft.	Vibration Setting Type	Control Type	Wt., lbs.		Each
For Ceramic, Corn Cob, Plastic, Porcelain, Steel, and Walnut Shells
120V AC—Three-Prong Plug
10	0.1	10"	4"	Plastic	10"	11"	1/30	1.1	6	Fixed	Switch	8	00000000	0000000
18	0.2	12"	4 1/2"	Plastic	12"	12 1/2"	__	1.6	6	Fixed	Switch	15	00000000	000000
57	0.6	17"	6"	Plastic	17"	18"	1/20	1.6	6	Adjustable	Switch	23	00000000	00000000
240V AC—Three-Prong Plug
18	0.2	12"	4 1/2"	Plastic	12"	15"	1/20	0.7	6	Fixed	Switch	15	00000000	000000

Tumbling Machines

One Barrel

Two Barrels

The rotating motion of these machines aggressively deburrs and polishes. Fill with media to maximum of 60% capacity and run wet or dry to finish multiple parts at the same time.

Tumbling Machines
		Barrel					Overall										Replacement Barrels		Replacement Belts
Load Cap., lbs.	Cap., cu. ft.	No. of	Inside Dia.	Inside Dp.	Material	Speed, rpm	Ht.	Wd.	Dp.	hp	Current, A	Cord Lg., ft.	Control Type	Wt., lbs.		Each		Each		Each
For Ceramic, Corn Cob, Plastic, Porcelain, Steel, and Walnut Shells
120V AC—Two-Prong Plug
3	0.033	1	4 1/4"	4"	Rubber	32-36	7 1/2"	6"	8 1/2"	1/75	0.5	4	Plug	4	00000000	0000000	00000000	000000	00000000	00000
6	0.067	2	4 1/4"	4"	Rubber	32-36	7 1/2"	11"	6"	1/75	0.5	4	Plug	6	00000000	000000	00000000	00000	00000000	0000
9	0.1	1	7"	4"	Rubber	24-28	10"	6"	11"	1/75	0.5	4	Plug	6	00000000	000000	00000000	000000	00000000	0000
15	0.167	1	7"	8"	Rubber	20-22	11 1/2"	11"	11"	1/50	0.8	4	Plug	13	00000000	000000	00000000	000000	00000000	0000

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.

Sheet sanders use rectangular sanding sheets that are good for fitting into corners, but they must sand with the grain pattern of your workpiece. Sanders for 8"-long sheets only move back and forth; they’re known as inline sanders. Those for 7"-long sheets move in an orbital motion and are known as jitterbug sanders.

Sanders with a 3/8" stroke length are good for aggressive sanding that produces a rough finish (best for grits 16 to 80), such as grinding and deburring. 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

Sheet Sander

	For Disc		For Sheet				Spindle					Air Inlet
Stroke Lg.	Dia.	Mount Type	Lg.	Wd.	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
Sheet
3/8"	__	__	8"	2 3/4"	2,400 strokes/min.	0.3	__	__	18 cfm @ 90 psi	5 1/4"	3.7 lbs. / 1.7 kg	1/4	NPT	Female	Solenoid Valve with Wire Leads	00000000	00000000
3/32"	__	__	7"	3 2/3"	10,000 rpm	0.28	__	__	18 cfm @ 90 psi	5 1/4"	2.4 lbs. / 1 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

Replacement Sheet Sanding Pad

Disc
Dia.	Lg.	Wd.	Mount Type		Each
5"	__	__	Hook and Loop	00000000	000000
6"	__	__	Hook and Loop	00000000	00000
Sheet
__	7"	3 2/3"	Hook and Loop	00000000	00000
__	8"	2 3/4"	Hook and Loop	00000000	00000

Replacement Sanders

Replacement Disc Sander

Replacement Sheet Sander

	For Disc		For Sheet				Spindle					Air Inlet
Stroke Lg.	Dia.	Mount Type	Lg.	Wd.	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
Sheet
3/8"	__	__	8"	2 3/4"	2,400 strokes/min.	0.3	__	__	18 cfm @ 90 psi	5 1/4"	3.7 lbs. / 1.7 kg	1/4	NPT	Female	00000000	00000000
3/32"	__	__	7"	3 2/3"	10,000 rpm	0.28	__	__	18 cfm @ 90 psi	5 1/4"	2.4 lbs. / 1 kg	1/4	NPT	Female	00000000	00000000