Airtac SAU Standard Air Cylinder SAU80X240
The AirTAC Airtac SAU Standard Air Cylinder SAU80X240 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 240mm 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
- Stroke240 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X240
The AirTAC SAU80X240 is a double-acting profile-type cylinder featuring an extruded aluminum barrel. It is engineered to be physically shorter than an ISO 15552 cylinder of the same 80 mm bore, providing a distinct space advantage in tight machine layouts. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, operating on a 3/8 inch port with 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 equates to lifting about 128 kg vertically with a 2:1 safety margin. Since this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensor switches. For high-heat environments up to 150 C, you can specify the Viton H seal option instead of the standard TPU.
Airtac SAU Standard Air Cylinder SAU80X240 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X240 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 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 SAU80X240
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SAU80X240 Is Used
Injection Mold Clamping
Provides robust 2513 N clamping force to secure injection mold halves, utilizing the compact profile length to fit within tight press enclosures.
Pallet Stopper Gate
Acts as a heavy-duty stopper arm on high-throughput packaging conveyors, absorbing kinetic impact using the adjustable 28 mm end cushions.
Heavy Press Ejection
Ejects dense metal stamped parts from a hydraulic press, safely moving loads within the 1508 N safe working range at 0.5 MPa.
Is the Airtac SAU Standard Air Cylinder SAU80X240 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 SAU80X240 fits perfectly in the heavy-duty middle ground. It shares mounting accessories directly with the AirTAC SC series, including LB foot brackets, FA/FB flanges, and CA/CB clevises. At a 240 mm stroke, side-load risks are moderate, so ensure proper guide alignment to prevent rod bending.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure drops or the valve is centered—the piston will drift. The adjustable 28 mm air cushions at both ends only decelerate the piston near stroke end to prevent impact; they do not act as a brake. For suspended or vertical loads that must remain fixed during air loss, 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 SAU80X240 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 inch.
No, because this SKU does not include the -S magnet option, it cannot accept CMSG, DMSG, or EMSG magnetic switches. You would need the SAU80X240-S variant for position sensing.
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