Airtac SAU Standard Air Cylinder SAU80X875S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X875S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 875mm 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
- Stroke875 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X875S
The AirTAC SAU80X875S is a double-acting profile-type cylinder engineered for heavy-duty automation. It delivers a robust 2513 N push force at 0.5 MPa, utilizing a 3/8" port and a 25 mm carbon steel rod. Its extruded aluminum barrel makes it shorter and more compact than a standard ISO 15552 cylinder of the same bore, saving valuable machine space. The 875 mm stroke falls within the 1500 mm standard limit, and the -S suffix means a piston magnet is included for CMSG, DMSG, or EMSG sensors.
For practical sizing, plan for a safe working load of roughly 1508 N, which accounts for seal friction at 0.5 MPa. In a vertical lift scenario, this translates to lifting about 128 kg with a 2:1 safety margin. The unit features adjustable air cushions at both ends to decelerate the piston smoothly, and a Viton H seal option extends operating temperatures from 0 to 150 C for high-heat environments.
Airtac SAU Standard Air Cylinder SAU80X875S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X875S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 875 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 SAU80X875S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×875 | 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 SAU80X875S Is Used
Pallet Transfer Diversion
Pushes heavy loaded pallets sideways onto secondary packaging lines using the full 875 mm travel and 2513 N push force at 0.5 MPa.
Automated Press Ejection
Ejects formed metal parts from large hydraulic presses, utilizing the 28 mm adjustable air cushion to safely stop the 25 mm rod at stroke end.
High-Bay Storage Extraction
Extracts totes from deep shelving units in cold storage areas, relying on the -S magnet for DMSG position sensing and NBR seals for low temperatures.
Is the Airtac SAU Standard Air Cylinder SAU80X875S the Right Cylinder?
When sizing this 80 mm bore, compare it to neighboring bores: a 63 mm bore provides 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. This SAU80X875S fits applications needing substantial force without the bulk of the 100 mm unit. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis options. Because the stroke is 875 mm, you must support the load with an external guide to prevent rod bending and excessive side loading. Additionally, a plain cylinder drifts when air is lost—the cushion only decelerates the piston near stroke end, so install an external rod lock or pilot-operated check valve for load holding.
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 SAU80X875S FAQ
This 80 mm bore cylinder has a 3/8" port and M20x1.5 rod thread. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
No, it is a compact profile cylinder, not an ISO 15552 unit. It is shorter than ISO cylinders and uses AirTAC SC-series mounting accessories like LB foot, FA/FB flange, and CA/CB clevis. The -S suffix enables CMSG, DMSG, and EMSG sensor switches.
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