Airtac SAU Standard Air Cylinder SAU80X225S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X225S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 225mm 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
- Stroke225 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X225S
The AirTAC SAU80X225S is a double-acting profile-type cylinder featuring a 3/8" port, a 25 mm piston rod, and an M20x1.5 rod-end thread. Its extruded aluminum barrel with a built-in sensor groove makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a distinct space advantage in dense machinery layouts. It delivers a robust push force of 2513 N and a pull force of 2268 N at 0.5 MPa, operating efficiently at speeds between 30-800 mm/s.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. This translates to lifting roughly 128 kg vertically with a 2:1 safety margin, allowing you to match real part weights accurately. The -S suffix indicates a built-in piston magnet, enabling direct mounting of CMSG, DMSG, or EMSG switches for position sensing. If your environment exceeds the standard -20 to +70 C range, you can specify the Viton H high-temperature seal option to handle up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X225S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X225S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAU80X225S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SAU80X225S Is Used
Injection Mold Extraction
Provides the robust 2513 N push force needed to positively eject heavy automotive interior panels from injection molding tools without consuming excessive machine length.
Pallet Diverting Arm
Actuates a heavy-duty diverting arm on a packaging line, utilizing the 225 mm stroke to shift loaded pallets laterally while fitting within the conveyor's tight frame envelope.
Vertical Carton Lift
Lifts cartons weighing up to 128 kg in a high-speed distribution hub, relying on the integrated magnet for precise DMSG switch signaling at the top and bottom of the travel path.
Is the Airtac SAU Standard Air Cylinder SAU80X225S 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. Choose the SAU80X225S when your application requires that middle-ground thrust. Because this model includes the -S magnet, it is fully ready for CMSG/DMSG/EMSG sensors. Mounting is straightforward using AirTAC SC-series accessories, such as LB foot brackets, FA/FB flanges, or CA/CB clevises. At a 225 mm stroke, side loads are moderate, but always ensure rigid guidance for heavy payloads to prevent rod bending.
Keep in mind that a standard double-acting cylinder relies entirely on air pressure to maintain position. If air is lost or the valve is centered, the piston will drift, and the adjustable 28 mm air cushions at both ends only decelerate the piston near stroke end without acting as a brake. To securely hold a load vertically, 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 SAU80X225S FAQ
The SAU80X225S 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, and it reaches a theoretical maximum of 513 kgf at 1.0 MPa.
No, it is not an ISO 15552 cylinder, but it is deliberately shorter for compact spaces. You must use AirTAC SC-series mounting accessories like LB, FA, or CA brackets. Because this SKU has the -S suffix, it contains a magnet and fully supports CMSG, DMSG, and EMSG sensors.
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