Airtac SAU Standard Air Cylinder SAU80X270S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X270S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 270mm 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
- Stroke270 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X270S
The AirTAC SAU80X270S is a double-acting profile-type cylinder engineered to be shorter than an ISO 15552 unit of the same bore, saving valuable machine space. It delivers a robust 2513 N push and 2268 N pull at 0.5 MPa, driven by a 25 mm carbon steel rod. The 3/8 inch port and M20x1.5 rod thread ensure high flow and secure mechanical mounting.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa to account for seal friction and smooth travel. This translates to lifting roughly 128 kg vertically with a 2:1 safety margin. The integrated -S magnet allows direct mounting of CMSG, DMSG, or EMSG sensors in the barrel groove, while the standard TPU seals handle temperatures from -20 to +70 C (a Viton H option extends this to 150 C).
Airtac SAU Standard Air Cylinder SAU80X270S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X270S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 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 SAU80X270S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×270 | 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 SAU80X270S Is Used
Stamping Press Feed
Pushes heavy coil stock into a mechanical press with 2513 N force, utilizing the compact profile to fit within tight feed enclosures.
Pallet Stopper Gate
Acts as a high-capacity stop gate on a heavy-duty conveyor, absorbing pallet momentum using the 28 mm adjustable air cushions.
Injection Mold Clamp
Secures injection molding tooling halves during low-pressure closing sequences, relying on the 128 kg safe vertical lift capacity.
Is the Airtac SAU Standard Air Cylinder SAU80X270S the Right Cylinder?
When sizing this 80 mm bore, compare it to its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. This SAU80X270S fits perfectly in the middle for medium-heavy loads. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis options. Because this model lacks an external rod lock, the piston will drift if air pressure is lost; use a pilot-operated check valve for suspended loads. The 270 mm stroke is well within the 1500 mm maximum and does not require external guide rods for side-load support.
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 SAU80X270S FAQ
This 80 mm bore cylinder features a 3/8 inch port and generates 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa it pushes 3518 N, and at 0.9 MPa it pushes 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG switches directly in the profile groove. Note that the air cushions only decelerate the piston near stroke end; the cylinder will drift and cannot hold a load without an external rod lock or pilot check valve.
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