Airtac SAU Standard Air Cylinder SAU100X40
The AirTAC Airtac SAU Standard Air Cylinder SAU100X40 is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 40mm 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
- Stroke40 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X40
The AirTAC SAU100X40 is a double-acting profile-type cylinder built for heavy-duty tasks, delivering a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore, saving valuable machine space without sacrificing power. It features a 1/2" air port, an M20x1.5 rod thread, and a 29 mm adjustable air cushion at both ends to smooth out stroke endings.
For practical sizing, plan for a safe working load of about 2356 N, which accounts for seal friction at 0.5 MPa. In a vertical lift scenario with a 2:1 safety margin, this actuator can lift roughly 200 kg. You can pair it with AirTAC SC-series mounting accessories like LB foot or FA flange brackets. Note that because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG magnetic sensors for position detection.
Airtac SAU Standard Air Cylinder SAU100X40 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X40 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 SAU100X40
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SAU100X40 Is Used
Injection Mold Clamping
Provides robust 3927 N push force to secure heavy injection mold halves within a compact machinery footprint.
Pallet Stopper Gate
Acts as a high-force pneumatic stop gate on heavy-duty roller conveyors, halting loaded pallets efficiently.
Press Pin Insertion
Drives large-diameter steel pins into heavy chassis assemblies, utilizing its 200 kg vertical lift capacity.
Is the Airtac SAU Standard Air Cylinder SAU100X40 the Right Cylinder?
When sizing this actuator, consider the neighboring bores to ensure optimal performance: stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa, while this 100 mm unit provides 3927 N. If your application requires even more power, there is no larger standard SAU bore, so you would need to explore parallel setups. Keep in mind that a plain cylinder drifts when air is lost or the valve is centered; the air cushion only decelerates the piston near the end of travel and does not act as a locking brake. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve. Because this SKU has no -S suffix, it cannot host magnetic sensors, so external mechanical limit switches are required for position feedback.
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 SAU100X40 FAQ
This 100 mm bore cylinder features a 1/2" air port and delivers a push force of 3927 N and a pull force of 3681 N 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.
It is not an ISO 15552 cylinder, but it shares mounting dimensions with the AirTAC SC series, accepting LB, FA, and CA brackets. Additionally, this SKU lacks a magnet, so it cannot use magnetic sensors like CMSG or DMSG switches.
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