Airtac SAU Standard Air Cylinder SAU80X70
The AirTAC Airtac SAU Standard Air Cylinder SAU80X70 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 70mm 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
- Stroke70 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X70
The AirTAC SAU80X70 is a double-acting profile-type cylinder engineered with a 80 mm bore and 70 mm stroke. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a clear space advantage in dense machinery layouts. It delivers a robust 2513 N push and 2268 N pull at 0.5 MPa, utilizing a 3/8 inch port and an M20x1.5 rod thread.
For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. This translates to lifting about 128 kg vertically with a 2:1 safety margin. The standard TPU seals operate from -20 to +70 C, but a Viton H option extends heat resistance up to 150 C. Note that this specific SKU lacks the -S magnet, meaning it cannot host CMSG, DMSG, or EMSG sensor switches.
Airtac SAU Standard Air Cylinder SAU80X70 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X70 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAU80X70
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SAU80X70 Is Used
Injection Mold Clamping
Provides 2513 N of push force at 0.5 MPa to secure mid-sized injection mold halves, leveraging the compact profile length to fit within tight press enclosures.
Heavy Package Diverting
Deploys a 70 mm stroke to push heavy cartons off a main conveyor line, safely handling loads near the 128 kg vertical lift equivalent without requiring excessive space.
Pallet Stopper Gates
Acts as a robust pneumatic stopper in automated palletizers, using its 1508 N safe working load to halt incoming pallets while maintaining a short machine footprint.
Is the Airtac SAU Standard Air Cylinder SAU80X70 the Right Cylinder?
When sizing this 80 mm bore, compare it against adjacent options: the 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore provides 3927 N. Choose the SAU80X70 when your application sits comfortably in the 1500 N safe working range. Mounting is straightforward using AirTAC SC-series accessories, including LB foot brackets, FA/FB flanges, and CA/CB clevises, alongside I, Y, F, or U knuckles.
Because a standard double-acting cylinder vents and drifts when air pressure drops or the valve centers, the adjustable 28 mm air cushions at both ends only decelerate the piston near stroke end—they do not lock the load. To prevent dropping, 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 SAU80X70 FAQ
The SAU80X70 features a 3/8 inch port and delivers a push force of 2513 N and a pull force of 2268 N 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.
No, it is not an ISO 15552 cylinder and shares mounting dimensions only with the AirTAC SC series (LB, FA, FB, CA, CB). Additionally, because this SKU lacks the -S magnet, it cannot support CMSG, DMSG, or EMSG magnetic sensors.
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