Airtac SAU Standard Air Cylinder SAU80X125S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X125S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 125mm 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
- Stroke125 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X125S
The AirTAC SAU80X125S is a double-acting profile-type cylinder featuring a 3/8" port and an M20x1.5 rod thread. Its extruded aluminum barrel makes it shorter 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.
For real-world sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa to account for seal friction, which translates to lifting about 128 kg vertically with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG switches. If your environment exceeds the standard -20 to +70 C range, a Viton H seal option extends operation up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X125S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X125S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAU80X125S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SAU80X125S Is Used
Injection Mold Extraction
Provides the robust 2513 N push force needed to positively eject dense plastic parts from injection molding tools.
Pallet Handling Diverter
Pushes heavy loaded pallets onto secondary conveyor lines where the compact profile length prevents frame interference.
Press Feed Clamping
Secures thick sheet metal stock before stamping, utilizing the 125 mm stroke to clear the press feeding area quickly.
Is the Airtac SAU Standard Air Cylinder SAU80X125S the Right Cylinder?
When sizing this 80 mm bore, stepping down to a 63 mm cylinder yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. This model accepts AirTAC SC-series mounting hardware, including LB foot, FA/FB flange, and CA/CB clevis brackets. The integrated magnet allows seamless sensor placement in the profile groove.
Because the adjustable air cushion only decelerates the piston near the stroke end, it will not hold a load if air pressure drops. For vertical or suspended loads that must resist drifting during air loss or valve centering, add 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 SAU80X125S FAQ
This 80 mm bore cylinder 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.
It is not an ISO 15552 cylinder, but it shares mounting accessories with the AirTAC SC series, such as LB foot and FA flange brackets. The -S suffix means it has a built-in magnet for CMSG, DMSG, and EMSG sensors in the profile groove.
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