Airtac SAU Standard Air Cylinder SAU80X425
The AirTAC Airtac SAU Standard Air Cylinder SAU80X425 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 425mm 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
- Stroke425 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X425
The AirTAC SAU80X425 is a double-acting profile-type standard cylinder engineered to be shorter than an ISO 15552 cylinder of the same bore, delivering a space-saving footprint for tight machinery. It features an extruded aluminum barrel with an integrated sensor groove, a Ø25 mm hard-chrome plated carbon steel rod, and a 3/8" port. Operating at 0.15-1.0 MPa, it generates a push force of 2513 N and a pull force of 2268 N at 0.5 MPa.
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 equates to lifting roughly 128 kg vertically with a 2:1 safety margin, letting you match real part weights accurately. The adjustable 28 mm air cushions at both ends decelerate the piston smoothly. Note that this specific SKU lacks a magnet, meaning it cannot support CMSG, DMSG, or EMSG magnetic switches.
Airtac SAU Standard Air Cylinder SAU80X425 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X425 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 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 SAU80X425
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×425 | 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 SAU80X425 Is Used
Heavy-Duty Press Fit
Drives robust press-fit operations for automotive bushings, utilizing the 2513 N push force to seat heavy metal components reliably.
Pallet Diversion
Pushes loaded pallets sideways on a packaging line, where the 425 mm stroke and 128 kg vertical lift equivalent easily handle heavy goods.
Material Lift Gate
Actuates a heavy lifting gate in a warehouse sorting hub, taking advantage of the compact profile length to fit within tight structural supports.
Is the Airtac SAU Standard Air Cylinder SAU80X425 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 80 mm bore hits a sweet spot at 2513 N. For this 425 mm stroke, external guides are strongly recommended to prevent rod bending and absorb side loads, ensuring seal longevity. You can mount it using AirTAC SC-series accessories like LB foot, FA/FB flange, or CA/CB clevis brackets. Because this SKU has no -S magnet, position sensing is not possible. Furthermore, if your application requires holding a load vertically during air loss or valve centering, add an external rod lock or pilot-operated check valve, as the cushions only decelerate the piston and will not brake or hold the load.
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 SAU80X425 FAQ
The SAU80X425 features a 3/8" 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. At 0.7 MPa, the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
You can use AirTAC SC-series mounting accessories like LB, FA, FB, CA, and CB brackets. However, because this SAU80X425 SKU does not include the -S magnet option, it cannot support CMSG, DMSG, or EMSG magnetic switches for position sensing.
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