Airtac SAI40 Standard Air Cylinder SAI40BX115
The AirTAC SAI40 Standard Air Cylinder SAI40BX115 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 SAI40BX115
The AirTAC SAI40X115 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa and 879 N at 0.7 MPa. Its 115 mm stroke falls outside the standard increments, making it a made-to-order configuration tailored for specific stroke length requirements.
This unit features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads and lacks a standard magnet, meaning position sensing via CMSE or DMSE switches is not supported without modification.
Airtac SAI40 Standard Air Cylinder SAI40BX115 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX115 |
|---|---|
| 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 SAI40BX115
| 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 SAI40BX115 Is Used
Custom Stroke Clamping
Provides exact 115 mm travel for clamping irregularly sized workpieces where standard 100 mm or 125 mm strokes would over-travel or fall short.
Package Diverting
Delivers 879 N of push force at 0.7 MPa to reliably divert medium-weight packages on a conveyor line without requiring a full 50 mm bore cylinder.
Washdown Actuation
The SUS304 stainless steel rod resists corrosion, making it suitable for actuating gates or valves in food processing or high-humidity manufacturing zones.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX115 the Right Cylinder?
Select this specific 40 mm bore when an application requires exactly 115 mm of travel and a push force around 628 N at 0.5 MPa. If your project demands less force, stepping down to a 32 mm bore yields 402 N, while stepping up to a 50 mm bore provides 982 N. Because this is a non-standard stroke, ensure your design accommodates the exact length.
As a true ISO 15552 profile cylinder, it serves as a direct replacement for any standard cylinder sharing this mounting interface. Note that the adjustable air cushions only decelerate the piston at stroke ends; they do not hold a load. If your system loses air pressure, the rod will drift, requiring an external pilot-operated check valve or a SAIL locking variant for static holding.
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 SAI40BX115 FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X115 is dimensionally interchangeable per ISO 15552. It can serve as a direct replacement for other ISO 15552 profile cylinders with matching 40 mm bore and 115 mm stroke dimensions.
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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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