Airtac SAI40 Standard Air Cylinder SAI40X375S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X375S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 375mm 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
- Stroke375 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 SAI40X375S
The AirTAC SAI40X375-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 375mm stroke. It delivers 628N of push force at 0.5MPa and 879N at 0.7MPa, making it well-suited for medium-duty automation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This specific configuration includes a magnetic piston (-S) for position detection and uses a standard carbon steel rod. The piston travels at speeds between 30 and 800 mm/s. For environments requiring high-temperature resistance, the standard TPU seals can be swapped for Viton (H) options, though you should confirm lead times during your RFQ.
Airtac SAI40 Standard Air Cylinder SAI40X375S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X375S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 375 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 SAI40X375S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×375 | 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 SAI40X375S Is Used
Package Sorting
Actuates diverter arms on packaging lines, using the magnetic piston to trigger reed switches for mid-stroke positioning.
Component Clamping
Secures workpieces during light machining, providing 879N of clamping force at 0.7MPa without obstructing the work area.
Material Handling
Lifts and indexes cardboard cartons between conveyor belts, where the 375mm stroke provides the exact reach needed for transfer.
Is the Airtac SAI40 Standard Air Cylinder SAI40X375S the Right Cylinder?
Choose this 40mm bore when 32mm (563N at 0.7MPa) is too weak, but 50mm (1374N at 0.7MPa) would oversize your system. The 375mm stroke falls within the 1200mm standard maximum, but at this length the unsupported rod is susceptible to bending under side loads. To prevent premature wear, pair this cylinder with an external guide rail or select a guided cylinder module.
This model uses a PT G1/4 port and includes a magnetic piston for CMSE or DMSE sensor switches. As a double-acting cylinder, it relies on live air pressure to hold position; if air is lost, the load will drift. For fail-safe holding, consider the SAIL variant with an air-released lock or 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 SAI40X375S FAQ
The SAI40X375-S provides 628N of push force and 528N of pull force at 0.5MPa. At 0.7MPa, the push force increases to 879N.
Yes, the SAI40X375-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders, provided your mounting accessories and G1/4 ports align.
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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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