6" Bore Air Cylinders | McMaster-Carr

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Force @ 150 psi

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Force @ 50 psi

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Force @ 200 psi

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85 Products

About Air Cylinders

Select a cylinder, prolong its life by reducing wear, and trigger automated processes with sensors.

NFPA Tie Rod Air Cylinders

Made to fit the most common mounting footprint, these cylinders have an NFPA (National Fluid Power Association) industry-standard footprint, ensuring easy interchangeability. They have a magnetic piston, so you can use sensors (sold separately) to activate relays and controllers.

Cushioned cylinders have adjustable air cushions that absorb piston impact to minimize wear and noise. Turn the screws at each port to adjust the amount of cushion.

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

Sensor Ready

Lg.						Air Inlet
Stroke	Retracted	Extended	Force @ 100 psi, lbs.	Body Material	Bearing Material	Pipe Size	Thread Type	Gender		Each
6" Bore Size (6 1/2" Wd.)
1"	9.25"	10.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	0000000
1 1/2"	9.75"	11.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
2"	10.25"	12.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
2 1/2"	10.75"	13.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
3"	11.25"	14.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
3 1/2"	11.75"	15.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
4"	12.25"	16.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
4 1/2"	12.75"	17.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
5"	13.25"	18.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
6"	14.25"	20.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
6 1/2"	14.75"	21.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
7"	15.25"	22.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
8"	16.25"	24.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
8 1/2"	16.75"	25.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
9"	17.25"	26.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
10"	18.25"	28.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
10 1/2"	18.75"	29.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
11"	19.25"	30.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
12"	20.25"	32.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
12 1/2"	20.75"	33.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	000000
13"	21.25"	34.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
14"	22.25"	36.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
15"	23.25"	38.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
16"	24.25"	40.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
17"	25.25"	42.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
18"	26.25"	44.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
19"	27.25"	46.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
20"	28.25"	48.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
22"	30.25"	52.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
23"	31.25"	54.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
24"	32.25"	56.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
25"	33.25"	58.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
26"	34.25"	60.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
27"	35.25"	62.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
28"	36.25"	64.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000
30"	38.25"	68.25"	2,827	Aluminum	Iron	3/4	NPT	Female	00000000	00000000

Cushioned Sensor Ready

Lg.						Air Inlet
Stroke	Retracted	Extended	Force @ 100 psi, lbs.	Body Material	Bearing Material	Pipe Size	Thread Type	Gender		Each
6" Bore Size (6 1/2" Wd.)
2"	10.25"	12.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	0000000
2 1/2"	10.75"	13.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
3"	11.25"	14.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
3 1/2"	11.75"	15.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
4"	12.25"	16.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
4 1/2"	12.75"	17.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
5"	13.25"	18.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
6"	14.25"	20.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
7"	15.25"	22.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
8"	16.25"	24.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
9"	17.25"	26.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
10"	18.25"	28.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
11 1/2"	19.75"	31.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
12"	20.25"	32.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
13"	21.25"	34.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
14"	22.25"	36.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	000000
15"	23.25"	38.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
16"	24.25"	40.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
18"	26.25"	44.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
20"	28.25"	48.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
22"	30.25"	52.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
24"	32.25"	56.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
28"	36.25"	64.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
30"	38.25"	68.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
32"	40.25"	72.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
34"	42.25"	76.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000
36"	44.25"	80.25"	2,827	Aluminum	PTFE-Coated Cast Iron	1/2	NPT	Female	00000000	00000000

Front or Rear Flanges

Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.

Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.

Pivot brackets and clevis brackets work together to allow the rear portion of cylinders to pivot back and forth. Use either with a clevis rod end to create arcing movements. Rod clevises allow the front portion of cylinders to pivot.

				Inside Mounting Holes				Outside Mounting Holes
For Bore Size	Wd.	Ht.	Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	8 5/8"	6 1/2"	3/4"	4	0.531"	4 7/8"	Yes	4	0.563"	7 5/8"	No	Steel	Eight Bolts	00000000	0000000

Pivot Brackets

Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.

Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.

						Mounting Holes
For Bore Size	Pin Hole Dia.	Wd.	Ht.	Dp.	Base Plate Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	1"	6 1/2"	6 1/2"	3 1/4"	3/4"	4	0.531"	4.879"	Yes	Steel	Four Bolts	00000000	0000000

Clevis Brackets with Pin

Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.

Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.

	Pin								Mounting Holes
For Bore Size	Dia.	Lg.	Material	Wd.	Ht.	Dp.	Jaw Opening Wd.	Base Plate Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	1"	3 1/2"	Steel	6 1/2"	6 1/2"	3 3/8"	1 1/2"	3/4"	4	0.53"	4.879"	Yes	Cast Iron	Four Bolts	00000000	0000000

Rod Clevis with Pin

Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.

Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.

	Pin						Thread				Shank
For Bore Size	Dia.	Lg.	Material	Lg.	Ht.	Jaw Opening Wd.	Size	Type	Spacing	Lg.	Center Lg.	Gender	Material		Each
6"	1"	2.719"	Steel	4 1/8"	2"	1 1/2"	1-14	UNS	Extra Fine	1 5/8"	3 1/8"	Female	Steel	00000000	0000000

Replacement Seal Kits

Standard
For Bore Size	Includes	For Bearing Material		Each
6"	Rod Seal, Rod Wiper, Two Piston Seals, Two Tube Seals	Iron	00000000	0000000
Cushioned
6"	Rod Seal, Rod Wiper, Two Piston Seals, Two Tube Seals	PTFE-Coated Cast Iron	00000000	000000

5-240V AC/DC Reed Sensors for Standard Cylinders

For Bore Size	AC Voltage Range	DC Voltage Range		Each
6"	5V AC- 240V AC	5V DC- 240V DC	00000000	000000

120V AC/DC Reed Sensors for Cushioned Cylinders

For Bore Size	AC Voltage	DC Voltage		Each
1 1/2", 2", 2 1/2", 3 1/4", 4", 6"	120V AC	120V DC	0000000	000000

Mounts for NFPA Tie Rod Air Cylinders

Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.

Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.

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

Front or Rear Flanges

				Inside Mounting Holes				Outside Mounting Holes
For Bore Size	Wd.	Ht.	Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	8 5/8"	6 1/2"	3/4"	4	0.531"	4 7/8"	Yes	4	0.563"	7 5/8"	No	Steel	Eight Bolts	00000000	0000000

Pivot Brackets

						Mounting Holes
For Bore Size	Pin Hole Dia.	Wd.	Ht.	Dp.	Base Plate Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	1"	6 1/2"	6 1/2"	3 1/4"	3/4"	4	0.531"	4.879"	Yes	Steel	Four Bolts	00000000	0000000

Clevis Brackets with Pin

	Pin								Mounting Holes
For Bore Size	Dia.	Lg.	Material	Wd.	Ht.	Dp.	Jaw Opening Wd.	Base Plate Thick.	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included	Material	Includes		Each
6"	1"	3.5"	Steel	6 1/2"	6 1/2"	3 3/8"	1 1/2"	3/4"	4	0.53"	4.879"	Yes	Cast Iron	Four Bolts	00000000	0000000

Rod Clevis with Pin

	Pin						Thread				Shank
For Bore Size	Dia.	Lg.	Material	Lg.	Ht.	Jaw Opening Wd.	Size	Type	Spacing	Lg.	Center Lg.	Gender	Material		Each
6"	1"	2.719"	Steel	4 1/8"	2"	1 1/2"	1-14	UNS	Extra Fine	1 5/8"	3 1/8"	Female	Steel	00000000	0000000

Washdown NFPA Tie Rod Air Cylinders

Made with an NFPA industry standard footprint and a stainless steel body, these cylinders are easily interchanged with the most common mounting footprint and withstand chemicals, corrosive solutions, and washdowns. They have a rod wiper that keeps contaminants out. These cylinders contain a magnetic piston that can activate relays and controllers when you attach one or multiple sensors (not included). Use one sensor for each action you want to trigger. When the piston moves past the sensor, the sensor activates. These cylinders have self-adjusting cushions that automatically compensate for changes in load and speed.

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

Washdown NFPA Tie Rod Air Cylinders

Lg.						Air Inlet
Stroke	Retracted	Extended	Force @ 100 psi, lbs.	Body Material	Bearing Material	Pipe Size	Thread Type	Gender		Each
Cushioned Sensor Ready
6" Bore Size (6 1/2" Wd.)
2"	11"	13"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	000000000
4"	13"	17"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
6"	15"	21"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
8"	17"	25"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
10"	19"	29"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
12"	21"	33"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
16"	25"	41"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
18"	27"	45"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
20"	29"	49"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
24"	33"	57"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000
28"	37"	65"	2,827	304 Stainless Steel	303 Stainless Steel	3/4	NPT	Female	00000000	00000000

Replacement Seal Kits

For Bore Size	Includes	For Bearing Material		Each
6"	Rod Seal, Rod Wiper, Two Piston Seals, Two Tube Seals	Stainless Steel	00000000	0000000

Reed Sensors

For Bore Size	AC Voltage	DC Voltage		Each
3 1/4", 4", 6"	120V AC	120V DC	00000000	000000

Rod Locks for NFPA Tie Rod Air Cylinders

Lock

Lock Shown Installed

Hold your piston's position during an emergency stop or power loss to keep your load safely in place. These rod locks also prevent your piston from drifting past its stopped position as it wears and loses precision. They fit an NFPA industry-standard footprint, so they’re easy to mount to a cylinder. You can unmount and reuse them as needed. With an anodized housing, they resist wear and corrosion.

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

						Mounting Holes
For Bore Size	Wd.	Ht.	Dp.	Base Plate Thick.	Body Material	No. of	Dia.	Ctr.-to-Ctr.	Mounting Hardware Included		Each
6"	8 5/8"	6 1/2"	6"	3/4"	Anodized Aluminum	4	9/16"	7 5/8"	No	0000000	000000000