Airtac SAU Standard Air Cylinder SAU100X55S
The AirTAC Airtac SAU Standard Air Cylinder SAU100X55S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X55S
The AirTAC SAU100X55S is a double-acting profile-type cylinder featuring a 100 mm bore and 55 mm stroke. It delivers a substantial 3927 N push force at 0.5 MPa. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a clear space advantage in heavy machinery. The 1/2" air port and M20x1.5 rod thread handle high flow rates required for moving large masses.
Because the SKU includes the -S suffix, it has a built-in piston magnet for direct mounting of CMSG, DMSG, or EMSG sensors in the profile groove. For practical sizing, plan for a safe working load of about 2356 N, which accounts for seal friction and smooth travel. In a vertical lift scenario, this translates to lifting about 200 kg safely with a 2:1 margin. You can also specify Viton H seals to push the operating temperature limit up to 150 C for hot environments.
Airtac SAU Standard Air Cylinder SAU100X55S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X55S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAU100X55S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAU100X55S Is Used
Heavy Stamp Press Ejection
Ejects thick metal blanks from a 150-ton stamping press, using the 3927 N push force to reliably clear heavy parts within a short 55 mm cycle.
Pallet Dispenser Separation
Separates empty wooden pallets at the bottom of a magazine stack, where the compact profile saves floor space and the 200 kg vertical lift capacity handles the load.
Injection Mold Platen Shift
Shifts a heavy mold platen on a large injection molding machine, relying on the 1/2" port for rapid air filling and the -S magnet for end-of-stroke confirmation.
Is the Airtac SAU Standard Air Cylinder SAU100X55S the Right Cylinder?
When sizing this 100 mm bore model, compare it to its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while there is no larger standard SAU bore, making this the top force tier at 3927 N. This unit shares its mounting footprint with AirTAC SC series accessories, so you can use standard LB foot, FA flange, or CA clevis brackets. Remember that a standard cylinder drifts if air pressure drops or the valve centers; the adjustable air cushions only decelerate the piston near the end of stroke and do not function as a locking brake. For suspended loads, install an external rod lock or 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 SAU100X55S FAQ
This 100 mm bore cylinder has a 1/2" port, M20x1.5 rod thread, and 29 mm adjustable air cushions. It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa. The operating speed range is 30-800 mm/s.
No, it is not dimensionally interchangeable with ISO 15552 cylinders, though its extruded profile barrel is more compact. You must use AirTAC SC-series mounting accessories like LB, FA, or CA brackets. Because this is the -S magnet version, you can mount CMSG, DMSG, or EMSG switches directly into the barrel groove.
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