Airtac SAU Standard Air Cylinder SAU80X25S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X25S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 25mm stroke, 3/8" 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.
- BoreØ80 mm
- Stroke25 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X25S
The AirTAC SAU80X25S is a double-acting profile-type cylinder engineered for heavy-duty tasks within confined spaces. Because its extruded aluminium barrel is shorter than an ISO 15552 cylinder of the same 80 mm bore, it delivers a space-saving footprint without sacrificing power. It generates 2513 N of push force and 2268 N of pull force at 0.5 MPa, operating via a 3/8" port and a 25 mm rod with an M20x1.5 thread.
For practical sizing, plan for a safe working load of roughly 1508 N, which accounts for seal friction and smooth travel at 0.5 MPa. In vertical lifting scenarios, this translates to hoisting about 128 kg with a 2:1 safety margin. The included -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches into the barrel groove for precise position detection.
Airtac SAU Standard Air Cylinder SAU80X25S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X25S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SAU80X25S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | 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 SAU80X25S Is Used
Injection Mold Clamping
Provides high 2513 N clamping force over a short 25 mm stroke to secure injection mold halves inside compact CNC machinery.
Short-Stroke Stamping
Executes rapid, heavy-duty part marking and stamping operations where a robust 80 mm bore is needed but axial length is restricted.
Heavy Pallet Diverter
Actuates a heavy-load diverter arm on a conveyor line, utilizing the built-in magnet for immediate end-of-stroke sensor feedback.
Is the Airtac SAU Standard Air Cylinder SAU80X25S the Right Cylinder?
When sizing this 80 mm bore, compare it to adjacent options: a 63 mm bore yields 1559 N of push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. The SAU80X25S is optimal when your application requires that middle-ground 2513 N thrust over a very short 25 mm stroke. It shares mounting accessories with the AirTAC SC series, so you can easily fit LB foot brackets, FA/FB flanges, or CA/CB clevises.
Remember that a standard cylinder does not hold its position if air pressure drops or the valve centers; the piston will drift. The adjustable 28 mm air cushions only decelerate the rod near the stroke ends and do not function as a braking lock. If your machine requires absolute load holding during an air loss event, integrate 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 SAU80X25S FAQ
This 80 mm bore cylinder features a 3/8" port and generates 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa, the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
The extruded profile barrel is physically shorter than an ISO 15552 cylinder of the same bore, saving valuable machine space. The -S suffix indicates a built-in piston magnet, allowing you to install CMSG, DMSG, or EMSG sensors directly into the barrel groove for position detection.
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