Airtac SAU Standard Air Cylinder SAU80X45
The AirTAC Airtac SAU Standard Air Cylinder SAU80X45 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X45
The AirTAC SAU80X45 is a double-acting profile-type cylinder with a 45 mm stroke. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore, saving valuable machine space. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, with a 3/8" air port and an M20x1.5 rod thread.
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. The standard TPU seals handle -20 to +70 C, while a Viton H option extends this to 150 C. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG sensor switches.
Airtac SAU Standard Air Cylinder SAU80X45 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X45 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 SAU80X45
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAU80X45 Is Used
Injection Mold Clamping
Provides robust 2513 N clamping force at 0.5 MPa to secure injection mold halves within compact machinery frames.
Pallet Stopper Gate
Acts as a heavy-duty stopper arm on conveyor lines, using its 45 mm stroke to halt pallets weighing up to 128 kg safely.
Press Fit Assembly
Drives bearings into heavy housings on automated lines, utilizing the 80 mm bore's 3518 N push force at 0.7 MPa for reliable seating.
Is the Airtac SAU Standard Air Cylinder SAU80X45 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 80 mm when you need substantial force in a tighter footprint. Mounting is straightforward using AirTAC SC-series accessories like LB foot, FA/FB flange, or CA/CB clevis brackets. Since this SKU has no -S magnet, position sensing is unavailable.
Remember that the adjustable air cushion only decelerates the piston near the stroke end; it does not act as a brake. If your application requires holding a vertical load when air is lost or the valve is centered, you must add an external rod lock or a pilot-operated check valve to prevent drift.
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 SAU80X45 FAQ
The SAU80X45 has a 3/8" air port and an M20x1.5 rod thread. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, a push force of 3518 N at 0.7 MPa, and a theoretical maximum force of 513 kgf at 1.0 MPa.
It is not an ISO 15552 cylinder, but it shares mounting dimensions with the AirTAC SC series, accepting LB, FA, FB, CA, and CB brackets. Additionally, this specific SKU lacks the -S magnet, so it cannot support CMSG, DMSG, or EMSG magnetic sensors.
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