Airtac SAU Standard Air Cylinder SAU80X40S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X40S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X40S
The AirTAC SAU80X40S is a double-acting profile-type cylinder engineered to be shorter than an ISO 15552 unit of the same bore, yielding a distinct spatial advantage in dense machinery layouts. Operating via a 25 mm carbon steel rod with a 3/8" port and M20x1.5 thread, it generates 2513 N of push force at 0.5 MPa. The integrated -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches into the barrel groove for precise positioning feedback.
For practical sizing, anticipate a safe working load of roughly 1508 N—about 60% of the 0.5 MPa rating—to offset seal friction. In vertical setups, this translates to lifting around 128 kg with a 2:1 safety margin. The standard TPU seals handle -20 to +70 C, while a Viton H option extends heat resistance up to 150 C for demanding thermal environments.
Airtac SAU Standard Air Cylinder SAU80X40S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X40S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAU80X40S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAU80X40S Is Used
Injection Mold Clamping
Applies the 2513 N push force to secure mid-sized injection mold halves within a compact press envelope.
Pallet Dispenser Gate
Actuates a heavy diverter gate in automated packaging lines where the shorter profile barrel prevents frame interference.
Logistics Sorter Diverter
Drives a high-speed sorting arm at 30-800 mm/s to redirect heavy parcels onto secondary outbound chutes.
Is the Airtac SAU Standard Air Cylinder SAU80X40S the Right Cylinder?
When sizing this 80 mm bore, evaluate the neighboring options: a 63 mm unit provides 1559 N push at 0.5 MPa for lighter jobs, whereas a 100 mm unit offers 3927 N for heavier demands. Because this SKU includes the -S magnet, it is immediately ready for CMSG/DMSG/EMSG sensor integration. Mounting hardware utilizes the AirTAC SC-series ecosystem, including LB foot brackets, FA/FB flanges, and CA/CB clevises. Remember that standard air cushions only decelerate the piston near stroke end; they do not function as a braking mechanism. If power drops, the rod will drift, so deploy an external rod lock or pilot-operated check valve for suspended loads.
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 SAU80X40S FAQ
This 80 mm bore cylinder features a 3/8" port and delivers 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.
No, the SAU is a compact profile cylinder and is not dimensionally interchangeable with ISO 15552 standards. However, it shares mounting accessories with the AirTAC SC series, such as LB foot, FA/FB flange, and CA/CB clevis brackets. The -S suffix on this model means it includes a magnet for CMSG/DMSG/EMSG sensors.
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