Airtac SAI40 Standard Air Cylinder SAI40AX115S
The AirTAC SAI40 Standard Air Cylinder SAI40AX115S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 115mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke115 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 SAI40AX115S
The AirTAC SAI40X115-S is a double-acting ISO 15552 profile cylinder engineered with a 40mm bore and 115mm stroke. It generates 628N of push force and 528N of pull force at 0.5 MPa, making it well-suited for mid-range automation tasks. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into standard ISO 15552 mounting footprints.
This specific configuration includes a -S magnet for direct compatibility with CMSE and DMSE series sensor switches, which seat neatly into the dual grooves machined on both sides of the barrel. Additionally, the piston rod is constructed from SUS420J2 stainless steel (material code A), offering enhanced resistance to corrosion and moisture compared to standard carbon steel rods.
Airtac SAI40 Standard Air Cylinder SAI40AX115S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX115S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 SAI40AX115S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SAI40AX115S Is Used
Part Ejection
Provides the 628N push force needed to positively eject stamped metal parts from a press die over a 115mm travel distance.
Package Diverting
Actuates a routing arm on a packaging line, using the integrated magnet and DMSE sensor to confirm stroke completion.
Gripper Actuation
Drives heavy-duty pneumatic grippers where the SUS420J2 stainless rod prevents corrosion in humid or wash-down environments.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX115S the Right Cylinder?
Select this 40mm bore when an application requires stepping up from the 32mm version, which only yields 402N of push force at 0.5 MPa. If your project demands even higher thrust, consider the 50mm bore that provides 982N. The 115mm stroke hits a sweet spot for compact ejector mechanisms and gripper actuation. Because this is a double-acting cylinder, air drives the piston in both directions.
To integrate this model, note the PT threaded G1/4 port and the M12x1.25 rod thread. It utilizes adjustable air cushions at both ends to decelerate the piston smoothly. If the machinery loses air pressure, the piston will drift and cannot hold a load; for position-holding requirements, specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve.
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 SAI40AX115S FAQ
At an operating pressure of 0.5 MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879N.
Yes, the SAI40X115-S is dimensionally interchangeable per ISO 15552. You can drop it into existing mountings using standard FA, FB, LB, or TC accessories, provided the G1/4 port and M12x1.25 rod thread match your interface.
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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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