3/8" Bore Air Cylinders | McMaster-Carr

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28 Products

Air Slides

Convenient for use with devices such as grippers and printing heads, these air slides have a nonrotating head that provides steady motion and a larger mounting area than air cylinders. Air slides have two guide rods parallel to the piston that keep the head from twisting as it extends and retracts.

The magnetic piston inside these slides can activate relays and controllers when used with a sensor (not included). When the piston moves past the sensor, the sensor activates. You can use multiple sensors—attach one for each action to trigger.

Sensor Ready

	Lg.						Air Inlet
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Carriage Material	Air Inlet Thread Size	Thread Type	Gender	Dynamic Horiz. Load Cap., lb.		Each
3/8" Bore (1.61" Wide)



		1/2"	3.07"	3.07"	12	Aluminum	10-32	UNF	Female	1	6311K12	0000000


		1"	4.07"	4.07"	12	Aluminum	10-32	UNF	Female	1	6311K15	000000
		1 1/2"	5.22"	5.22"	12	Aluminum	10-32	UNF	Female	1	6311K21	000000
		2"	6.07"	6.07"	12	Aluminum	10-32	UNF	Female	1	6311K414	000000
		3"	8.07"	8.07"	12	Aluminum	10-32	UNF	Female	1	6311K415	000000
		4"	10.07"	10.07"	12	Aluminum	10-32	UNF	Female	1	6311K416	000000

Accessories and Replacements for Air Slides

For Bore Size	Includes		Each
3/8", 10 mm	Internal Shock Pad, Rod Seal, Two Cartridge Cap Retainers, Two Cartridge Cap Seals, Two External Shock Pads, Two Piston Seals	6311K34	000000

For Bore Size	DC Voltage, V DC	Enclosure Rating		Each
0.375", 0.5", 0.75", 1", 1.25", 1.5", 2", 2.5", 6 mm, 10 mm, 14 mm, 20 mm, 25 mm, 32 mm, 40 mm, 50 mm	4.5 to 30	IP67	6311K33	0000000

Miniature Threaded-Body Air Cylinders

These cylinders thread directly into your equipment, taking minimal space.

Single Acting About Single Acting

Image of Product. Front orientation. Contains Annotated. Air Cylinders. Miniature Threaded-Body Air Cylinders, Single Acting.

Single-acting cylinders are push style—air extends the rod and cylinders have a spring that returns the rod to its original position.

	Lg.					Air Inlet
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Body Material	Thread Size	Thread Type	Gender		Each
3/8" Bore (1/2" OD)



		1/4"	1.74"	1.99"	11	Brass	10-32	UNF	Female	6604K32	0000000


		3/8"	1.87"	2.24"	11	Brass	10-32	UNF	Female	6604K33	000000
		1/2"	1.99"	2.49"	11	Brass	10-32	UNF	Female	6604K13	000000
		1"	2.49"	3.49"	11	Brass	10-32	UNF	Female	6604K34	000000

Double Acting About Double Acting

Image of Product. Front orientation. Contains Annotated. Air Cylinders. Miniature Threaded-Body Air Cylinders, Double Acting.

Double-acting cylinders exert force in both directions.

	Lg.					Rear Air Inlet				Side Port
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Body Material	Connection	Thread Size	Thread Type	Gender	Connection	For Tube ID	Thread Size	Thread Type	Gender		Each
3/8" Bore (1/2" OD)



		1/4"	1.74"	1.99"	11	Brass	Threaded	10-32	UNF	Female	Barbed	1/16"	—	—	Male	6604K42	0000000


		1/2"	1.99"	2.49"	11	Brass	Threaded	10-32	UNF	Female	Barbed	1/16"	—	—	Male	6604K23	000000
		1"	2.49"	3.49"	11	Brass	Threaded	10-32	UNF	Female	Barbed	1/16"	—	—	Male	6604K43	000000
		1 1/2"	2.99"	4.49"	11	Brass	Threaded	10-32	UNF	Female	Barbed	1/16"	—	—	Male	6604K44	000000
		2"	3.49"	5.49"	11	Brass	Threaded	10-32	UNF	Female	Threaded	—	10-32	UNF	Female	6604K45	000000

Impact-Resistant Round Body Air Cylinders

Built to withstand hard knocks, these cylinders have a thick barrel wall for more durability than standard air cylinders. They combine the form of a round body air cylinder with the rugged construction of a tie-rod body air cylinder. All are double acting; they use air to exert force in both directions.

Sensor-Ready Nose Mount

Image of Product. Front orientation. Contains Annotated. Air Cylinders. Impact-Resistant Round Body Air Cylinders, Nose Mount.

Sensor-ready cylinders have a magnetic piston to activate relays and controllers. When the piston moves past the sensor (sold separately), the sensor activates. You can use multiple sensors. Attach one for each action you want to trigger.

Nose-mount cylinders have threads and a nut on the front of the cylinder and install in a fixed position horizontally or vertically.

	Lg.					Air Inlet
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Body Material	Thread Size	Thread Type	Gender		Each
3/8" Bore (0.79" OD)



		1/4"	2.26"	2.51"	12	Brass	10-32	UNF	Female	59155K121	000000


		3/8"	2.39"	2.76"	12	Brass	10-32	UNF	Female	59155K126	00000
		1/2"	2.5"	3"	12	Brass	10-32	UNF	Female	59155K122	00000
		3/4"	2.76"	3.52"	12	Brass	10-32	UNF	Female	59155K123	00000
		1"	3.01"	4.01"	12	Brass	10-32	UNF	Female	59155K124	00000
		1 1/4"	3.26"	4.51"	12	Brass	10-32	UNF	Female	59155K125	00000

Accessories and Replacements for Air Cylinders

For Bore Size	Wd.	Ht.	Dp.	Base Plate Thk.	Material	Actuator Connection Hardware		Each
3/8"	1.3"	0.875"	0.47"	0.06"	Steel	Foot Bracket	59155K24	000000

For Bore Size	Material	Actuator Connection Hardware		Each
3/8"	Steel	Front Flange	59155K23	00000

For Bore Size	Includes		Each
3/8"	Piston Seals, Rod Seal, Tube Gasket	59155K15	00000

Reed Sensors


For Face/Pivot-Mount Air Cylinders	With LED for Nose-Mount Air Cylinders	For Nose-Mount Air Cylinders

For Bore Size	AC Voltage, V AC	DC Voltage, V DC	With Switch Component		Each
1/4", 3/8", 5/8"	5, 24, 100	5, 12, 24, 100	—	59155K31	000000
1/4", 3/8", 5/8"	100	24	LED	59155K32	00000