Airtac SAU Standard Air Cylinder SAU80X850S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X850S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 850mm 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
- Stroke850 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X850S
The AirTAC SAU80X850S is a double-acting profile-type cylinder built with an extruded aluminum barrel. It is engineered to be shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore, saving valuable machine space. It delivers a robust 2513 N push force at 0.5 MPa, utilizing a 25 mm carbon steel rod and a 3/8" port.
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 included -S magnet enables CMSG, DMSG, or EMSG switches in the profile groove, and a Viton H seal option expands the operating temperature from -20 to 150 C.
Airtac SAU Standard Air Cylinder SAU80X850S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X850S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 850 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 SAU80X850S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×850 | 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 SAU80X850S Is Used
Pallet Transfer Line
Pushes heavy loaded pallets between roller conveyors, leveraging the 2513 N push force to overcome initial rolling resistance over the 850 mm travel.
Vertical Lift Gate
Raises a 120 kg material handling gate using the 2:1 vertical lift safety margin, while the compact profile saves overhead clearance.
Industrial Door Actuation
Opens and closes large machinery access doors, using the built-in magnet and DMSG sensors to confirm fully open and closed positions.
Is the Airtac SAU Standard Air Cylinder SAU80X850S 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 a 100 mm bore provides 3927 N. This SAU80X850S fits perfectly in the middle for medium-heavy tasks. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis options.
Because this model features an 850 mm stroke, you must support the load with external guides to prevent rod bending and excessive side loads. Additionally, the standard adjustable air cushion only decelerates the piston near stroke end; it will not hold a load if air is lost. Use an external rod lock or pilot-operated check valve for secure positioning.
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 SAU80X850S FAQ
The 80 mm bore uses a 3/8" port. Force output is 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 not an ISO 15552 cylinder, though it is deliberately shorter than one. Mounting compatibility is strictly with the AirTAC SC series accessories (LB, FA, FB, CA, CB). The -S suffix means it has a magnet for CMSG, DMSG, or EMSG sensors.
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