Airtac SAI40 Standard Air Cylinder SAI40BX115S
The AirTAC SAI40 Standard Air Cylinder SAI40BX115S 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 SAI40BX115S
The AirTAC SAI40X115-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 115mm stroke. It delivers 628N of push force at 0.5MPa, making it well-suited for mid-range industrial actuation tasks. Because 115mm is not a standard catalog stroke, this unit is manufactured as a made-to-order configuration to fit precise machine spacing requirements.
This specific variation includes a SUS304 stainless steel rod (material code B) for superior corrosion resistance in humid or mildly chemically washed environments. It also features a built-in magnet (-S) for use with CMSE or DMSE reed switches, which mount directly into the dual sensor grooves on the extruded aluminum barrel. Fluid ports are PT tapered thread type.
Airtac SAI40 Standard Air Cylinder SAI40BX115S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX115S |
|---|---|
| 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 SAI40BX115S
| 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 SAI40BX115S Is Used
Corrosive Assembly Stations
The SUS304 stainless steel rod resists washdowns and humidity, making it ideal for food packaging or light assembly lines where moisture is present.
Package Diverting
Provides 628N of push force at 0.5MPa, offering reliable lateral movement for mid-weight packages on sorting conveyors.
Sensor-Driven Gating
The integrated magnet allows CMSE switches to confirm exact mid-stroke or end-of-stroke positions for automated machine logic.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX115S the Right Cylinder?
If your application requires less force, stepping down to the 32mm bore yields 402N at 0.5MPa; conversely, upgrading to the 50mm bore provides 982N for heavier loads. Because this 115mm stroke is a non-standard dimension, ensure your machine design accommodates the exact extended and retracted lengths rather than relying on standard catalog spacing. The adjustable air cushions at both ends are tuned to decelerate the piston smoothly near stroke end.
This model is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other ISO 15552 profile cylinders. The base configuration includes a 40mm bore, 115mm stroke, PT tapered G1/4 ports, and a magnet for sensor readiness. Note that a standard SAI does not hold its load when air pressure is removed; if your application requires fail-safe position holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
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 SAI40BX115S FAQ
At 0.5MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At 0.7MPa, the push force increases to 879N.
Yes, the SAI40X115-S is dimensionally interchangeable per ISO 15552 mounting interface standards, allowing it to serve as a direct replacement for other profile cylinders with matching 40mm bore and 115mm stroke dimensions.
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