8 mm Bore Air Cylinders | McMaster-Carr

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11 Products

Table Air Slides

For flexibility with your setup, mount equipment on top or in front of these air slides. Mount on top to reduce the space you need to move a full stroke length. Often used with gripping equipment, they have a larger mounting area than air cylinders. They also have two guide rods that keep the head steady as it extends and retracts.

A magnetic piston inside these slides activates relays and controllers when used with a sensor (sold separately). When the piston moves past the sensor, the sensor activates. You can use multiple sensors—one for each action you want to trigger.

Sensor Ready

	Lg., mm						Air Inlet
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Carriage Material	Air Inlet Thread Size	Thread Type	Gender	Dynamic Horiz. Load Cap., lb.		Each
8 mm Bore (26 mm Wide)



		5	45	50	8	Stainless Steel	M3 x 0.5 mm	Metric	Female	13	6841N16	0000000


		10	45	55	8	Stainless Steel	M3 x 0.5 mm	Metric	Female	11	6841N17	000000
		15	55	70	8	Stainless Steel	M3 x 0.5 mm	Metric	Female	10	6841N18	000000
		20	55	75	8	Stainless Steel	M3 x 0.5 mm	Metric	Female	8	6841N19	000000

Reed Sensors with LED

For Bore Size	DC Voltage, V DC	Enclosure Rating		Each
3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", 4.5 mm, 6 mm, 8 mm, 12 mm, 16 mm, 20 mm	4 to 8	IP67	6311K39	000000

Clean Room Flexible-Mount Air Cylinders

Mount these cylinders directly to equipment in environments where contamination is a concern, such as electronics manufacturing. Use the threaded through-holes on the face to connect to equipment, or mount them with attachments (not included). Hook these cylinders into your compressed air line to push and pull loads. They’re double-acting, so they operate at full force in either direction. The magnetic piston inside these cylinders can activate relays and controllers when used with a sensor (not included). As the piston moves past the sensor, the sensor activates. You can use multiple sensors—attach one for each action you want to trigger.

Connect mounts to an air cylinder to create linear, pivot, or arc movements.

Sensor Ready About Sensor Ready

No Cushion

Fed. Std. Class 10 and ISO Class 4—Cylinders that are rated for use in Fed. Std. Class 10 and ISO Class 4 clean rooms have a port that connects to a vacuum or exhaust system to remove particles created by friction inside the cylinder before they contaminate your space. They’re also cleaned and bagged.

	Lg., mm							Air Inlet
	Stroke	Retracted	Extended	Force @ 100 psi, lbf	Clean Room Std.	Cylinder Cushion Type	Body Material	Thread Size	Thread Type	Gender		Each
8 mm Bore (13 mm Wide)



		4	28	32	8	Fed. Std. Class 10, ISO Class 4	None	Aluminum	M3 × 0.5 mm	Metric	Female	6825N27	000000


		10	34	44	8	Fed. Std. Class 10, ISO Class 4	None	Aluminum	M3 × 0.5 mm	Metric	Female	6825N28	00000
		20	44	64	8	Fed. Std. Class 10, ISO Class 4	None	Aluminum	M3 × 0.5 mm	Metric	Female	6825N29	00000

Parts Metering Air Cylinders

Space out parts on your conveyor line or vibratory feeder. Also known as escapements, these air cylinders have at least one finger that extends to hold parts and then retracts to release them. The fingers are built to withstand force from the side, so your part won’t slip past. All fingers have tapped holes on all five of their faces, so you can mount attachments to any side of them.

One Finger


Two Cylinders Shown (Sold Separately)

One-finger cylinders can be spaced as far away from each other as needed, making them the best choice for use with large parts. Create a system of these air cylinders by placing multiple along your line to control the timing and speed with which they meter parts.

	Lg., mm					Air Inlet
	Stroke	Retracted	Extended	Finger Wd., mm	Sensor Ready	Thread Size	Thread Type	Gender		Each
8 mm Bore (19 mm Wide)



		10	77	87	6	Sensor Ready	M3 × 0.5 mm	Metric	Female	6441N11	0000000


		20	97	117	6	Sensor Ready	M3 × 0.5 mm	Metric	Female	6441N12	000000

Two Fingers

Two-finger cylinders are good for precisely positioning items for sealing, labeling, and inspection. Operating on fixed timing and sequencing, they extend one finger to stop a part then extend the other finger to separate it. The two fingers hold the part like you would between your thumb and index finger. When the part is ready to be released, they retract the first finger while the other finger continues to hold back other parts. Lastly, they retract the other finger to let the next part through.

	Lg., mm						Air Inlet
	Stroke	Retracted	Extended	Finger Wd., mm	Jaw Wd., mm	Sensor Ready	Thread Size	Thread Type	Gender		Each
8 mm Bore (34 mm Wide)



		8	75	83	6	20.3	Sensor Ready	M3 × 0.5 mm	Metric	Female	6441N19	0000000