Airtac SAI40 Standard Air Cylinder SAI40X120S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X120S 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 SAI40X120S
The AirTAC SAI40X120-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 120mm stroke. It generates 628N of push force and 528N of pull force at 0.5 MPa, making it well-suited for mid-range actuation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that easily drops into existing ISO 15552 mounting interfaces.
This specific configuration includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. The barrel features sensor grooves on both sides, allowing for seamless installation of CMSE or DMSE reed switches. Ports utilize a PT tapered thread, and the standard TPU seals handle operating pressures up to 1.0 MPa.
Airtac SAI40 Standard Air Cylinder SAI40X120S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X120S |
|---|---|
| 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 SAI40X120S
| 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 SAI40X120S Is Used
Automated Clamping
Provides 628N of push force at 0.5 MPa, ideal for securing medium-weight workpieces during machining or welding operations.
Package Diverting
The 120mm stroke and integrated magnet allow precise actuation of sorting gates on packaging lines with non-contact position verification.
Lift and Transfer
Utilizes a standard ISO 15552 foot mounting interface to push or lift products between conveyor tiers smoothly.
Is the Airtac SAI40 Standard Air Cylinder SAI40X120S the Right Cylinder?
Select this 40mm bore when an application requires more force than a 32mm model (which provides 402N at 0.5 MPa) but does not warrant the larger 982N output of a 50mm cylinder. The 120mm stroke offers ample travel for standard clamping and lifting. For installations needing position feedback, the -S magnet option is essential.
Because this is a double-acting cylinder, it relies on continuous air pressure to move and hold the rod; it will drift if pressure is lost. If a machine requires true fail-safe load holding, consider the SAIL locking variant or an external pilot-operated check valve. This unit is fully dimensionally interchangeable with other ISO 15552 cylinders.
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 SAI40X120S FAQ
At a standard 0.5 MPa operating pressure, this 40mm bore cylinder outputs 628N of push force and 528N of pull force. At the maximum rated pressure of 1.0 MPa, the theoretical push force reaches 128kgf.
Yes, the SAI40X120-S is a genuine ISO 15552 profile cylinder. Its mounting dimensions and port locations are standardized, making it a drop-in replacement for other ISO 15552 cylinders of the same bore size.
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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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