ISO Class 6 Air Cylinders

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Force @ 100 psi

Less than 100 lbf

100 lbf to 249.9 lbf

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1.25 mm

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Clean Room Standard

Fed. Std. Class 10

Fed. Std. Class 1,000

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DFARS Specialty Metals

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REACH

58 Products

About Air Cylinders

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

Clean Room Round Body Air Cylinders

Minimize the release of particles that can damage electronics or contaminate batches as you push and pull light loads. These air cylinders are designed with seals and caps that prevent particles from escaping. A rod seal wipes grease particles off the rod as it moves back and forth. The seal is polyurethane, which is slippery, so it wears more slowly than standard seals, releasing fewer particles. These cylinders also have tightly crimped end caps to stop air from leaking.

With no tie rods on the outside, these round-body cylinders fit in tight spaces. They have an ISO industry-standard footprint that fits common mounting patterns for easy interchangeability. As universal-mount cylinders, they have mounting threads on both ends, giving you more mounting options than nose-mount cylinders. You can also pivot mount them with the through-hole on the back. They’re double acting, meaning they push and pull loads with equal force.

The piston is magnetic, so you can use these cylinders with sensors (sold separately) to activate relays and controllers. When the piston moves past a sensor, the sensor activates. You can use multiple sensors—one for each action you want to trigger.

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

Sensor-Ready Universal Mount

Lg., mm								Air Inlet
Stroke	Retracted	Extended	Force @ 100 psi, lbs.	Environmental Rating	Air Cushion Type	Body Material	Rod Thread Size	Pipe Size	Thread Type	Gender	Specifications Met		Each
20mm Bore Size (21mm OD)
25	157	182	48	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M8 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	000000
50	182	232	48	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M8 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
70	202	272	48	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M8 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
100	232	332	48	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M8 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
125	257	382	48	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M8 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
25mm Bore Size (27mm OD)
25	166.5	191.5	76	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
50	191.5	241.5	76	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
70	211.5	281.5	76	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
100	241.5	341.5	76	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	00000
125	266.5	391.5	76	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	ISO 6432	0000000	000000
32mm Bore Size (42mm OD)
25	176.5	201.5	124	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	__	0000000	000000
50	201.5	251.5	124	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	__	0000000	000000
80	231.5	311.5	124	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	__	0000000	000000
100	251.5	351.5	124	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	__	0000000	000000
125	276.5	401.5	124	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M10 × 1.25 mm	1/8	BSPP	Female	__	0000000	000000
40mm Bore Size (50mm OD)
25	202.6	227.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000
50	227.6	277.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000
80	257.6	337.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000
100	277.6	377.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000
125	302.6	427.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000
160	337.6	497.6	194	Fed. Std. Class 1,000, ISO Class 6	Self Adjusting	Aluminum	M12 × 1.25 mm	1/4	BSPP	Female	__	0000000	000000

Rod Clevis with Pin

Instead of attaching your round body air cylinder directly to equipment, add a mount to best suit your application.

Foot brackets prevent cylinders from moving back and forth.

Pivot brackets for universal-mount air cylinders allow the rear portion of cylinders to pivot back and forth.

Rod clevises thread to cylinder shafts to allow swiveling.

Rod ends are internally threaded. They have an eyelet and ball that swivel to support angular misalignment and allow for pivoting.

Rod end nuts are internally threaded. They have an eyelet to make pivoting and hinge movements.

Stainless steel mounts are more corrosion resistant than steel and aluminum for use in wet or damp environments.

For Bore Size, mm	Lg., mm	Ht., mm	Jaw Opening Wd., mm	Thread Size	Material	Includes				Each
20	42	16	8	M8 × 1.25 mm	Zinc-Plated Steel	Nut, Pin	Round Body	Universal	00000000	000000
25, 32	52	20	10	M10 × 1.25 mm	Zinc-Plated Steel	Nut, Pin	Round Body	Universal	00000000	00000

Ball Joint Rod Ends

Shank Thread Size	ID, mm	Max. Ball Swivel	O'all Wd., mm	O'all Thick., mm	Shank Center Lg., mm	Shank Thread Lg., mm	Static Radial Load Cap., lbs.	Material	Shank Thread Direction		Each
M8 × 1.25 mm	8	18°	22	12	36	17	7,450	Zinc-Plated Chrome-Moly Steel	Right Hand	00000000	000000
M10 × 1.25 mm	10	17°	27	14	43	21	11,250	Zinc-Plated Chrome-Moly Steel	Right Hand	00000000	00000
M12 × 1.25 mm	12	17°	30	16	50	24	10,000	Zinc-Plated Chrome-Moly Steel	Right Hand	00000000	00000

Clevis Rod Ends

Shank Thread Size	ID, mm	Jaw Opening Wd., mm	O'all Wd., mm	Shank Center Lg., mm	Shank Thread Lg., mm	Jaw Center Lg., mm	Tensile Strength, psi	Material	Includes	Shank Thread Direction	Specifications Met		Each
M12 × 1.25 mm	12	12	24	48	24	24	60,000	Zinc-Plated Carbon Steel	Snap-On Spring Clevis Pin	Right Hand	DIN 71752	0000000	000000

24V AC/DC Reed Sensors

For Bore Size		Each
1 1/4", 32mm	00000000	0000000
1 1/2", 40mm	00000000	000000
20mm	00000000	000000
25mm	00000000	000000

30V DC NPN Sensors

For Bore Size		Each
1 1/4", 32mm	00000000	0000000
1 1/2", 40mm	00000000	000000
20mm	00000000	000000
25mm	00000000	000000

30V DC PNP Sensors

For Bore Size		Each
1 1/4", 32mm	00000000	0000000
1 1/2", 40mm	00000000	000000
20mm	00000000	000000
25mm	00000000	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.

Cylinders that are rated for use in Fed. Std. Class 1,000 and ISO Class 6 clean rooms have a low-friction polyurethane seal that wears slower and creates fewer particles than standard seals. As the rod moves, the seal wipes its surface clean of grease particles. The end caps are tightly crimped to stop air from leaking out. These cylinders have an ISO industry-standard footprint that fits common mounting patterns.

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

Air Cylinder with Fixed Cushion

Lg., mm							Air Inlet
Stroke	Retracted	Extended	Force @ 100 psi, lbs.	Environmental Rating	Air Cushion Type	Body Material	Pipe Size	Thread Size	Thread Type	Gender	Specifications Met		Each
Sensor Ready
25 mm Bore Size (40 mm Wd.)
10	71	65	76	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	__	M5 × 0.8 mm	Metric	Female	ISO 21287	0000000	000000
15	76	75	76	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	__	M5 × 0.8 mm	Metric	Female	ISO 21287	0000000	00000
20	81	85	76	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	__	M5 × 0.8 mm	Metric	Female	ISO 21287	0000000	00000
25	70	95	76	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	__	M5 × 0.8 mm	Metric	Female	ISO 21287	0000000	00000
32 mm Bore Size (47 mm Wd.)
10	60	70	124	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	00000
15	65	80	124	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	00000
20	70	90	124	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	00000
25	75	100	124	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	00000
40 mm Bore Size (55 mm Wd.)
10	61	71	194	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	000000
15	66	81	194	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	000000
20	71	91	194	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	000000
25	76	101	194	Fed. Std. Class 1,000, ISO Class 6	Fixed Cushion	Aluminum	1/8	__	BSPP	Female	ISO 21287	0000000	000000

Foot Brackets

					Base Mounting Holes				Top Mounting Holes
For Bore Size, mm	Wd., mm	Ht., mm	Dp., mm	Base Plate Thick., mm	No. of	Dia., mm	Ctr.-to-Ctr., mm	Mounting Fasteners Included	No. of	Dia., mm	Ctr.-to-Ctr., mm	Mounting Fasteners Included	Material		Each
25	23	22	40	4	2	7	26	No	2	6	26	Yes	Zinc-Plated Steel	00000000	00000

Pivot Brackets

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

Front or rear flanges are for straightforward, back-and-forth movements, such as opening a sliding door. 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 rod clevis to create arcing movements, such as opening a swinging door. Rod clevises allow the front portion of cylinders to pivot.

Stainless steel mounts are more corrosion resistant than steel and aluminum for use in wet or damp environments.

						Mounting Hole
For Bore Size, mm	Pin Hole Dia., mm	Wd., mm	Ht., mm	Dp., mm	Base Plate Thick., mm	No. of	Dia., mm	Ctr.-to-Ctr., mm	Mounting Hardware Included	Material	Includes	Specifications Met		Each
32	10	48	48	32	10	4	6	32.5	Yes	Aluminum	Four Bolts	ISO 15552	00000000	000000
40	12	53	53	37	10	4	6	38	Yes	Aluminum	Four Bolts	ISO 15552	00000000	00000

Rod Ends

For Bore Size, mm	ID, mm	Lg., mm	Wd., mm	Material	Height		Each
20	8	48	14	Zinc-Plated Steel	24 mm	0000000	00000
25, 32	10	57	17	Zinc-Plated Steel	28 mm	0000000	00000

Rod End Nuts

For Bore Size, mm	Overall Dia., mm	ID, mm	Mounting Hardware Included	Material	Center Length	Gender		Each
20	20	9	No	Nickel-Plated Steel	36 mm	Female	0000000	00000
25, 32	20	9	No	Nickel-Plated Steel	38 mm	Female	0000000	0000