Airtac SAU Standard Air Cylinder SAU100X125S
The AirTAC Airtac SAU Standard Air Cylinder SAU100X125S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 125mm stroke, 1/2" 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.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X125S
The AirTAC SAU100X125S is a double-acting profile-type cylinder engineered for heavy-duty motion within a smaller footprint than an equivalent ISO 15552 unit. Driven by a 25 mm carbon steel rod, it generates 3927 N of push force at 0.5 MPa. The 1/2" port and M20x1.5 rod thread equip this 100 mm bore for high-flow pneumatic demands. A 29 mm adjustable air cushion at both ends ensures smooth deceleration of heavy loads.
Because the -S suffix denotes an integrated piston magnet, you can directly mount CMSG, DMSG, or EMSG sensors into the extruded barrel groove for precise end-of-stroke detection. For practical sizing, plan for a safe working load of roughly 2356 N at 0.5 MPa to account for seal friction. In a vertical lift scenario, this translates to hoisting about 200 kg safely with a 2:1 margin. If your environment exceeds standard temperatures, specify the Viton H seal option to operate up to 150 C.
Airtac SAU Standard Air Cylinder SAU100X125S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X125S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAU100X125S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | 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 SAU100X125S Is Used
Injection Mold Clamping
Provides robust 3927 N push force to secure heavy injection mold halves, utilizing the 1/2" port for rapid high-volume actuation.
Pallet Lift Stations
Hoists loaded pallets weighing up to 200 kg vertically, relying on the 25 mm hard-chrome rod to resist deflection under heavy dynamic loads.
Press Ejection Systems
Ejects dense manufactured parts from hydraulic presses, using the 29 mm adjustable cushion to halt the 100 mm piston smoothly at stroke end.
Is the Airtac SAU Standard Air Cylinder SAU100X125S the Right Cylinder?
When sizing this model against the AirTAC SC-series family, consider the neighboring bores. Stepping down, the 80 mm bore provides 2513 N push at 0.5 MPa, while stepping up is not available as 100 mm is the largest SAU profile. This 125 mm stroke is well within standard limits, keeping the assembly rigid without requiring external guide rails to prevent rod bending. Keep in mind that the integrated air cushions only decelerate the piston near the end caps; they do not function as a braking mechanism. If your application must hold a load vertically during a pressure loss or valve centering, install 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 SAU100X125S FAQ
This 100 mm bore cylinder features a 1/2" air port and delivers 3927 N push and 3681 N pull at 0.5 MPa. At 0.7 MPa the push force is 5497 N, and the theoretical maximum force is 801 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in magnet for CMSG, DMSG, or EMSG switches in the barrel groove. It shares mounting dimensions with AirTAC SC-series accessories like LB foot and FA flange, but it is not dimensionally interchangeable with ISO 15552 cylinders.
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