Airtac SAI40 Standard Air Cylinder SAI40AX50
The AirTAC SAI40 Standard Air Cylinder SAI40AX50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 SAI40AX50
The AirTAC SAI40X50 is a double-acting ISO 15552 profile cylinder engineered for standardized mounting. Delivering 628N of push force at 0.5MPa, this 40mm bore unit utilizes a 50mm stroke for fast, short-cycle automation. The extruded aluminum barrel design eliminates tie-rods, providing a clean exterior that simplifies sensor placement.
This specific configuration features an SUS420J2 stainless steel rod (material code A) for superior corrosion resistance in humid or mildly chemically washed environments. It uses PT tapered port threads and is prepared without a magnet, relying purely on external switching logic.
Airtac SAI40 Standard Air Cylinder SAI40AX50 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAI40AX50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 SAI40AX50 Is Used
Short-Stroke Clamping
Holds workpieces firmly in machining fixtures using 628N of thrust at 0.5MPa without occupying excessive vertical space.
Package Diverting
Actuates routing gates on packaging lines where the 50mm stroke provides just enough movement to redirect lightweight goods.
Component Ejection
Pushes molded parts out of small presses, utilizing the SUS420J2 rod to resist moisture from cooling sprays.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX50 the Right Cylinder?
Choose this 40mm bore when a 32mm bore (402N at 0.5MPa) lacks the necessary thrust, but a 50mm bore (982N) would be physically oversized. The 50mm stroke is optimal for compact ejection or clamping tasks. For any application requiring the load to be held securely without continuous air pressure, note that a standard cylinder will drift; select the SAIL (air-released lock) or BSAI (clamp-lock) variant instead.
To match this ISO 15552 footprint exactly, specify a 40mm bore, 50mm stroke, PT G1/4 port thread, and your preferred mounting accessory (such as an LB foot or FA flange). Because the -S magnet option is omitted here, position sensing requires external mechanical switches.
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 SAI40AX50 FAQ
At a standard 0.5MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. It can reach up to 1130N push at 0.9MPa.
Yes, the SAI40X50 is dimensionally interchangeable per ISO 15552. It serves as a direct replacement for other ISO 15552 profile cylinders, provided you match the 40mm bore, 50mm stroke, and G1/4 port.
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