Airtac SAU Standard Air Cylinder SAU80X290S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X290S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X290S
The AirTAC SAU80X290S is a double-acting profile-type cylinder featuring a 80 mm bore and 290 mm stroke. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a distinct space advantage in tight machine layouts. It delivers a robust push force of 2513 N and pull force of 2268 N at 0.5 MPa, operating with a 3/8" port and a 25 mm piston rod.
For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa to account for seal friction and smooth travel. This translates to lifting about 128 kg vertically with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet, enabling direct mounting of CMSG, DMSG, or EMSG sensor switches into the profile groove. If your environment exceeds the standard -20 to +70 C range, the Viton H high-temperature seal option extends operation up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X290S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X290S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAU80X290S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAU80X290S Is Used
Automotive Welding Clamp
Drives heavy-duty spot welding guns with 2513 N force, utilizing the compact profile to fit within dense robotic welding cells.
Pallet Stopper Gate
Acts as a high-force pneumatic stop for loaded pallets on conveyor lines, safely arresting momentum using the adjustable cushion.
Injection Mold Ejection
Provides reliable ejection force for dense plastic parts, with the -S magnet tracking full extension via DMSG sensors.
Is the Airtac SAU Standard Air Cylinder SAU80X290S 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 SAU80X290S fits applications requiring 2513 N of push force. Mounting is straightforward using AirTAC SC-series accessories, including LB foot, FA/FB flange, and CA/CB clevis brackets. Because the stroke is 290 mm, ensure adequate guidance to prevent rod bending under side loads. Note that a standard cylinder drifts when air is lost; the adjustable air cushion only decelerates the piston near the end of travel and does not act as a brake. For secure load holding, integrate 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 SAU80X290S FAQ
The SAU80X290S features a 3/8" port and generates 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. The theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not an ISO 15552 cylinder, but it shares mounting accessories with the AirTAC SC series (LB, FA, FB, CA, CB). The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches that fit directly into the barrel's sensor groove.
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