Airtac SAU Standard Air Cylinder SAU80X250S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X250S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 250mm 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
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X250S
The AirTAC SAU80X250S is a double-acting profile-type cylinder with an 80 mm bore and 250 mm stroke. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. The extruded aluminum barrel with a built-in sensor groove makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a distinct space advantage in tight machine layouts. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions at both ends.
For practical sizing, plan for a safe working load of about 1508 N (roughly 60% of the 0.5 MPa push force) to account for seal friction and smooth travel. This equates to lifting about 128 kg vertically with a 2:1 safety margin. The included -S piston magnet allows you to mount CMSG, DMSG, or EMSG switches directly into the profile groove for precise end-of-stroke detection.
Airtac SAU Standard Air Cylinder SAU80X250S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X250S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAU80X250S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SAU80X250S Is Used
Injection Mold Extraction
Provides the robust 2513 N push force needed to pull heavy plastic parts out of injection molding dies, while the 250 mm stroke clears the press safely.
Pallet Diversion
Uses the 3/8" port and high flow capacity to swiftly actuate heavy-duty pallet routing gates on automated packaging lines.
Vertical Carton Lifts
Lifts loaded cartons weighing up to 128 kg vertically in distribution hubs, relying on the compact profile to fit within tight elevator shafts.
Is the Airtac SAU Standard Air Cylinder SAU80X250S the Right Cylinder?
When sizing this model against adjacent bores, the SAU63 provides 1559 N of push force at 0.5 MPa, while the SAU100 steps up to 3927 N. Choose the 80 mm bore if your application requires the 2513 N output to bridge that gap. Because the 250 mm stroke is substantial, ensure your mechanical setup includes adequate guidance to prevent rod-bending side loads and premature seal wear. You can mount this unit using AirTAC SC-series accessories, such as LB foot brackets, FA/FB flanges, or CA/CB clevises.
Remember that a standard double-acting cylinder like this will drift if air pressure is lost or the control valve is centered. The adjustable end cushions only decelerate the piston near the stroke ends and do not function as a braking mechanism. To suspend a load safely during an emergency stop or air loss, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 SAU80X250S FAQ
This 80 mm bore cylinder features a 3/8" port and an M20x1.5 rod thread. At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa the push force is 3518 N, and at 0.9 MPa it reaches 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not an ISO 15552 cylinder and does not share that footprint. Mounting compatibility is strictly with the AirTAC SC-series accessories (LB, FA, FB, CA, CB). However, because this is the -S variant with a built-in magnet, you can install CMSG, DMSG, or EMSG sensors directly into the extruded profile groove.
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