Airtac SAU Standard Air Cylinder SAU100X25S
The AirTAC Airtac SAU Standard Air Cylinder SAU100X25S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 25mm stroke, 1/2" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ100 mm
- Stroke25 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X25S
The AirTAC SAU100X25S is a double-acting profile-type cylinder engineered for heavy-duty automation within a tight footprint. It is purposefully shorter than an ISO 15552 cylinder of the same 100 mm bore, delivering a substantial push force of 3927 N and pull force of 3681 N at 0.5 MPa. The extruded aluminum barrel integrates a sensor groove, and because this SKU includes the -S magnet, it directly supports CMSG, DMSG, or EMSG reed and electronic switches for precise end-position detection. It operates at 30-800 mm/s and features a 1/2 inch port with an M20x1.5 rod thread.
For practical sizing, plan for a safe working load of about 2356 N, which accounts for seal friction at 0.5 MPa rather than using the theoretical maximum. In a vertical lifting scenario, this actuator can reliably lift about 200 kg when applying a 2:1 safety margin. If your environment exceeds standard operating temperatures of -20 to +70 C, you can specify the Viton H high-temperature seal option to handle up to 150 C.
Airtac SAU Standard Air Cylinder SAU100X25S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X25S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAU Standard Air Cylinder SAU100X25S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAU Standard Air Cylinder SAU100X25S Is Used
Heavy Stamping Press
Drives a 150 kg upper die in a short 25 mm forming cycle, utilizing the 3927 N push force to shape thick steel blanks efficiently.
Pallet Squaring Gate
Actuates a heavy-duty alignment stop on a high-speed packaging conveyor, relying on the compact profile to fit within tight conveyor framing.
Industrial Lift Detent
Locks a 180 kg machinery sub-assembly into a test fixture using a short 25 mm stroke, taking advantage of the 200 kg vertical lift capacity.
Is the Airtac SAU Standard Air Cylinder SAU100X25S the Right Cylinder?
When sizing this 100 mm bore actuator, compare it against adjacent bores to match your exact force requirements: stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, while this 100 mm unit provides 3927 N. If you need even more power, note that 100 mm is the largest standard SAU bore, offering a theoretical maximum of 801 kgf at 1.0 MPa. This model uses AirTAC SC-series mounting accessories, including LB foot mounts, FA/FB flanges, and CA/CB clevises, along with I, Y, floating, or universal rod knuckles. The integrated -S magnet allows for seamless sensor placement.
Remember that a standard double-acting cylinder does not hold its position if air pressure is lost or the control valve is centered; the piston will drift. The adjustable 29 mm air cushions at both ends only decelerate the piston near the stroke ends to prevent impact damage, acting as shock absorbers rather than a braking mechanism. To suspend a load safely in mid-stroke, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAU Standard Air Cylinder SAU100X25S FAQ
This 100 mm bore cylinder features a 1/2 inch port and an M20x1.5 rod thread. It delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa, the push force is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
It is not dimensionally interchangeable with ISO 15552 cylinders, but it shares mounting accessories with the AirTAC SC series, such as LB foot, FA/FB flange, and CA/CB clevis brackets. Because this SKU has the -S magnet, you can mount CMSG, DMSG, or EMSG sensors directly into the profile barrel groove.
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