Airtac SAI40 Standard Air Cylinder SAI40AX165
The AirTAC SAI40 Standard Air Cylinder SAI40AX165 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 165mm 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
- Stroke165 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 SAI40AX165
The AirTAC SAI40X165 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 165 mm stroke provides the extended travel needed for mid-range positioning tasks. The extruded aluminum barrel design omits tie-rods, yielding a clean exterior that drops directly into standard ISO 15552 mounting footprints.
Built for demanding environments, this specific configuration utilizes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads and lacks a standard magnet. For high-temperature environments up to +70 C, the seal options can be upgraded to Viton (H).
Airtac SAI40 Standard Air Cylinder SAI40AX165 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX165 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 165 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 SAI40AX165
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×165 | 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 SAI40AX165 Is Used
Part Ejection
Provides 879 N of push force at 0.7 MPa to reliably eject molded components from machinery within a 165 mm travel distance.
Diversion Arm
Actuates a routing arm on a packaging line, using the 165 mm stroke to push products into secondary sorting lanes.
Clamp Actuation
Drives a mid-sized clamping mechanism in an assembly fixture, utilizing the SUS420J2 stainless steel rod for durability against shop debris.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX165 the Right Cylinder?
Select this 40 mm bore when an application requires stepping up from the 32 mm class (which provides only 402 N at 0.5 MPa) to handle heavier payloads, but a 50 mm bore (982 N at 0.5 MPa) would be physically oversized. The 165 mm stroke hits a sweet spot for standard machine ejection. Because this is a double-acting actuator, air drives both the extension and retraction strokes.
If the machinery loses air pressure or the directional valve is centered, this cylinder cannot hold its load in place and the rod will drift. To achieve true position holding without live pressure, integrate an external pilot-operated check valve or transition to the SAIL variant. To match existing tooling, specify the PT port thread, the desired mounting accessory (such as FA flange or LB foot), and note that no magnet is present for sensor switching.
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 SAI40AX165 FAQ
The SAI40X165 generates a push force of 628 N at 0.5 MPa and 879 N at 0.7 MPa. The pull force is 528 N at 0.5 MPa.
Yes. The SAI40X165 is dimensionally interchangeable per ISO 15552. You can use it as a direct replacement for other ISO 15552 profile cylinders, provided your port and mounting dimensions align.
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