Airtac SAI40 Standard Air Cylinder SAI40X120
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X120 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 120mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke120 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI40 Standard Air Cylinder SAI40X120
The AirTAC SAI40X120 is a double-acting ISO 15552 profile cylinder offering a 628N push force at 0.5 MPa. Its 120mm stroke provides the exact mid-range travel needed for compact clamping and ejection tasks. The extruded aluminum barrel design omits tie rods, ensuring a clean exterior that resists debris buildup.
This unit features a standard carbon steel piston rod and PT tapered port threads. For higher temperature environments up to 70 C, you can specify Viton (H) seals instead of the standard TPU. The barrel includes dual sensor grooves for fitting CMSE or DMSE switches, provided a magnet is specified.
Airtac SAI40 Standard Air Cylinder SAI40X120 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X120 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40X120
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI40 Standard Air Cylinder SAI40X120 Is Used
Part Ejection
Ideal for pushing machined components out of a fixture with 628N of force at 0.5 MPa.
Package Diverting
Provides reliable 120mm travel to actuate diverters on automated packaging lines.
Clamp Actuation
Drives small pneumatic clamps securely into position for light welding or assembly work.
Is the Airtac SAI40 Standard Air Cylinder SAI40X120 the Right Cylinder?
If your application requires slightly less force, stepping down to the 32mm bore yields 402N at 0.5 MPa, while moving up to the 50mm bore provides 982N for heavier loads. Because this 120mm stroke is under 300mm, side-load stress on the rod bearing is minimal compared to longer strokes.
To replace an existing ISO 15552 cylinder, match the 40mm bore, 120mm stroke, G1/4 PT ports, and your required mounting accessory (such as FA flange or LB foot). Note that a standard SAI does not hold loads when air pressure is lost; for fail-safe holding, consider the SAIL variant with an air-released lock.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/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/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI40 Standard Air Cylinder SAI40X120 FAQ
At 0.5 MPa, the push force is 628N and the pull force is 528N. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X120 is dimensionally interchangeable per ISO 15552 standards, making it a drop-in replacement for other ISO 15552 profile cylinders.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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