Airtac SAI40 Standard Air Cylinder SAI40X115S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X115S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAI40X115S
The AirTAC SAI40X115-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 115mm stroke. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making it a solid choice for medium-duty automation tasks.
Equipped with a magnet for sensors, this model integrates seamlessly with CMSE and DMSE reed switches mounted into the dual-sided extruded aluminum barrel grooves. The standard carbon steel piston rod provides durable service, while adjustable air cushions at both ends ensure smooth deceleration.
Airtac SAI40 Standard Air Cylinder SAI40X115S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X115S |
|---|---|
| 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 SAI40X115S
| 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 SAI40X115S Is Used
Material Handling
Ideal for pushing or diverting packages on conveyor lines where 628 N of thrust at 0.5 MPa is sufficient for medium-weight goods.
Assembly Automation
Drives clamping and pressing fixtures in light assembly machinery, utilizing the 115mm stroke to actuate tooling precisely.
Packaging Equipment
Actuates sealing heads and sorting gates in packaging stations, benefiting from the adjustable end cushions to prevent harsh impacts.
Is the Airtac SAI40 Standard Air Cylinder SAI40X115S the Right Cylinder?
If your application requires less force, stepping down to a 32mm bore yields 402 N at 0.5 MPa, whereas moving up to a 50mm bore provides 982 N. Because this 115mm stroke is under 300mm, standard rod bearing bending is minimal, though external guides are recommended for heavy side loads.
To match this ISO 15552 replacement cylinder, specify the 40mm bore, 115mm stroke, PT G1/4 port, and the -S magnet option. Remember that a standard cylinder relies on live air pressure to hold its position; if power fails, the piston will drift. For failsafe load holding, consider the SAIL variant or an external rod 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 SAI40X115S FAQ
At 0.7 MPa, this 40mm bore cylinder provides 879 N of push force and 724 N of pull force. It operates efficiently within a 30-800 mm/s speed range.
Yes, the SAI40X115-S is dimensionally interchangeable per ISO 15552, allowing it to serve as a drop-in replacement for other standard profile cylinders with matching 40mm bore and 115mm stroke dimensions.
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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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