Airtac SAU Standard Air Cylinder SAU80X270
The AirTAC Airtac SAU Standard Air Cylinder SAU80X270 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 SAU80X270
The AirTAC SAU80X270 is a double-acting profile-type cylinder featuring an extruded aluminum barrel that is significantly shorter than an ISO 15552 unit of the same bore. It operates on filtered air at 0.15-1.0 MPa and delivers a robust 2513 N of push force and 2268 N of pull force at 0.5 MPa. Equipped with a 25 mm carbon steel rod and a 3/8" port, it provides adjustable air cushioning of 28 mm at both ends to smooth out strokes.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. In vertical lifting applications, this translates to safely hoisting roughly 128 kg with a 2:1 margin. Because this specific SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG magnetic switches. If your machine environment exceeds standard limits, you can specify the Viton H high-temperature seal option to push operating bounds up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X270 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X270 |
|---|---|
| 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 SAU80X270
| 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 SAU80X270 Is Used
Injection Mold Extraction
Provides the 2513 N push force needed to positively eject heavy plastic automotive interior panels from a mold cavity without consuming excessive machine length.
Palletized Goods Diversion
Drives a heavy-duty pusher arm on a packaging conveyor to redirect loaded pallets, utilizing the 270 mm stroke to clear the downstream lane effectively.
Stamping Press Feed
Advances thick-gauge metal sheet into a mechanical press, taking advantage of the 28 mm adjustable air cushions to prevent end-of-stroke shock damage.
Is the Airtac SAU Standard Air Cylinder SAU80X270 the Right Cylinder?
When sizing this 80 mm bore, compare it against its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. Choose the SAU80X270 when you need that middle-ground 2513 N thrust in a compact footprint. Mounting is straightforward using AirTAC SC-series accessories, including LB foot brackets, FA/FB flanges, and CA/CB clevises. Since this 270 mm stroke is approaching the mid-range, ensure your end-of-stroke alignment is precise to prevent rod-bending side loads.
Remember that a standard double-acting cylinder like this will drift if air pressure is lost or the control valve is centered. The integrated air cushion only decelerates the piston near the end of travel and does not function as a braking lock. To suspend a load safely in the event of an air failure, you must 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 SAU80X270 FAQ
The SAU80X270 delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. It features an 80 mm bore, 270 mm stroke, 3/8" port, M20x1.5 rod thread, and operates at speeds of 30-800 mm/s.
It is not an ISO 15552 cylinder; mounting accessories must be from the AirTAC SC series (LB, FA, FB, CA, CB). Additionally, because this SKU lacks the -S magnet, you cannot mount CMSG, DMSG, or EMSG magnetic switches for position sensing.
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