Airtac SAI40 Standard Air Cylinder SAI40AX25
The AirTAC SAI40 Standard Air Cylinder SAI40AX25 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 25mm 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
- Stroke25 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 SAI40AX25
The AirTAC SAI40X25 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 25mm stroke. It delivers 628N of push force and 528N of pull force at 0.5 MPa, making it well-suited for short-travel clamping and ejection tasks.
This variant incorporates a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance in humid environments. It uses PT tapered port threads and lacks a piston magnet, meaning it is optimized for purely mechanical actuation without requiring electronic position sensing.
Airtac SAI40 Standard Air Cylinder SAI40AX25 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX25 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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 SAI40AX25
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 SAI40AX25 Is Used
Short-Stroke Clamping
Provides reliable 628N clamping force at 0.5 MPa for holding small machined components securely during light milling or drilling operations.
Part Ejection
Ideal for rapidly ejecting finished parts from a conveyor line with a compact 25mm stroke that maintains high cycle rates within tight machinery envelopes.
Packaging Diverter
Drives compact diverter gates on packaging lines, utilizing the 30-800 mm/s speed range to quickly route cartons without stalling the main flow.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX25 the Right Cylinder?
Select this 40mm bore when a 32mm bore (402N push at 0.5 MPa) lacks power, but a 50mm bore (982N push at 0.5 MPa) is physically oversized. The 25mm stroke is ideal for compact, fast-acting mechanisms. Because it lacks a magnet (-S), position feedback requires external limit sensors rather than groove-mounted switches. If your application requires the load to remain fixed during a complete loss of air pressure, standard double-acting operation will not hold the load; consider the SAIL locking variant or an external pilot-operated check valve. For ISO 15552 dimensional direct replacements, match the 40mm bore, 25mm stroke, PT G1/4 port, and appropriate mounting accessories like FA or LB brackets.
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 SAI40AX25 FAQ
At an operating pressure of 0.5 MPa, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X25 is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are fully interchangeable with other ISO 15552 standard cylinders of the same bore size.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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