Airtac SAU Standard Air Cylinder SAU80X140S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X140S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 140mm 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
- Stroke140 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X140S
The AirTAC SAU80X140S is a double-acting profile-type cylinder with an 80 mm bore and 140 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa. Its extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore, saving valuable machine space. It features a 3/8" port, an M20x1.5 rod thread, and 28 mm adjustable air cushions at both ends.
Because this SKU includes the -S magnet, it directly supports CMSG, DMSG, and EMSG switches in the profile groove. For real-world work at 0.5 MPa, plan for a safe load of about 1508 N. Vertically, it lifts about 128 kg with a 2:1 margin. You can also specify Viton H seals for 0-150 C high-temperature environments.
Airtac SAU Standard Air Cylinder SAU80X140S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X140S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAU80X140S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAU80X140S Is Used
Stamping Press Feed
Pushes heavy metal blanks into a mechanical press, utilizing the 2513 N force to move dense steel sheets reliably.
Pallet Squaring Gate
Actuates a heavy alignment gate on a packaging conveyor, handling the 128 kg vertical lift equivalent safely.
Injection Mold Eject
Drives a secondary ejector plate on a large plastic molding machine, fitting easily into tight mold clamping spaces.
Is the Airtac SAU Standard Air Cylinder SAU80X140S the Right Cylinder?
When sizing this 80 mm bore, compare it to its neighbors: a 63 mm bore yields 1559 N push, while a 100 mm bore provides 3927 N at 0.5 MPa. This model is ideal when you need heavy force between those two ranges. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis options.
Note that a standard SAU cylinder will drift if air is lost or the valve is centered; the air cushion only decelerates the piston near the end of the stroke and does not act as a brake. To hold a load securely, install an external rod lock or a 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 SAU80X140S FAQ
The 80 mm bore yields a push of 2513 N and pull of 2268 N at 0.5 MPa. At 0.7 MPa the push is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa. The air port size is 3/8".
No, it is not an ISO 15552 cylinder. It is a compact profile cylinder that uses AirTAC SC-series mounting accessories, such as LB foot, FA/FB flange, and CA/CB clevis brackets. The -S suffix means it has a magnet for CMSG sensors.
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