Airtac SAU Standard Air Cylinder SAU80X275S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X275S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X275S
The AirTAC SAU80X275S is a double-acting profile-type cylinder engineered with a 3/8 inch port, a Ø25 mm piston rod, and an M20x1.5 rod-end thread. Its extruded aluminum barrel with a sensor groove makes it shorter and more compact than an ISO 15552 cylinder of the same bore, saving valuable machine space. It delivers a robust 2513 N push and 2268 N pull at 0.5 MPa, operating efficiently at speeds between 30-800 mm/s.
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 translates to lifting about 128 kg vertically with a 2:1 safety margin. The included -S magnet enables CMSG, DMSG, or EMSG switches for precise position detection. 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 SAU80X275S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X275S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAU80X275S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAU80X275S Is Used
Automated Press Clamping
Ideal for securing heavy sheet metal panels in an automated stamping press, utilizing the 2513 N push force to hold components firmly during machining operations.
Pallet Stopper Gate
Functions as a robust stopper gate on a heavy-duty packaging conveyor, using the 275 mm stroke to extend and halt incoming pallets weighing up to 128 kg safely.
Injection Mold Ejection
Drives the ejection plate in a mid-sized plastic injection molding machine, where the compact profile length minimizes the overall machine footprint.
Is the Airtac SAU Standard Air Cylinder SAU80X275S the Right Cylinder?
When sizing this 80 mm bore, compare it against its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. This SAU80X275S strikes a strong balance for medium-heavy loads. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis options. Because this model lacks a position lock, the piston will drift if air is lost or the valve is centered; integrate an external rod lock or pilot-operated check valve for suspended loads. At a 275 mm stroke, ensure adequate guidance to prevent rod bending under side 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 SAU80X275S FAQ
This 80 mm bore cylinder features a 3/8 inch 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. The theoretical maximum force is 513 kgf at 1.0 MPa.
It is not an ISO 15552 cylinder; mounting compatibility is strictly with the AirTAC SC series accessories (LB, FA, FB, CA, CB). The -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG sensors directly into the profile barrel groove.
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