Airtac SAU Standard Air Cylinder SAU80X45S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X45S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X45S
The AirTAC SAU80X45S is a double-acting profile-type cylinder with a 45 mm stroke. Its extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same 80 mm bore, saving valuable machine space. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, operating on a 3/8" port with an M20x1.5 rod thread.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa to account for seal friction. This translates to lifting roughly 128 kg vertically with a 2:1 safety margin. The included -S magnet enables CMSG, DMSG, or EMSG sensors in the profile groove, and a Viton H seal option raises the operating temperature limit to 150 C.
Airtac SAU Standard Air Cylinder SAU80X45S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X45S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 SAU80X45S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAU80X45S Is Used
Heavy-Duty Stamping
Applies the 2513 N push force at 0.5 MPa to seat bearings or stamp thick gauge metal plates in automated fabrication lines.
Pallet Positioning
Uses the short 45 mm stroke to push heavy pallets into a precise alignment stop before stretch wrapping, fitting into tight conveyor gaps.
Injection Mold Ejection
Ejects dense plastic or aluminum cast parts from molds, relying on the 28 mm adjustable air cushion to soften the end-of-stroke impact.
Is the Airtac SAU Standard Air Cylinder SAU80X45S 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. The 45 mm stroke keeps the retracted length highly compact. Because this SKU includes the -S magnet, it is ready for CMSG/DMSG/EMSG switches, and it shares mounting accessories with the AirTAC SC series. Remember that the adjustable air cushion only decelerates the piston near stroke end; to prevent drift on air loss, install an external rod lock or pilot-operated check valve.
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 SAU80X45S FAQ
The 80 mm bore yields 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. The air port size is 3/8".
No, the adjustable air cushion only decelerates the piston near the stroke ends and does not act as a brake. If air is lost or the valve is centered, the piston will drift. To maintain a vertical load, you must use an external rod lock or a pilot-operated check valve.
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