Airtac SAI40 Standard Air Cylinder SAI40X40S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 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 SAI40X40S
The AirTAC SAI40X40-S is a double-acting ISO 15552 profile cylinder with a 40mm bore and 40mm stroke. It delivers a push force of 628 N and a pull force of 528 N at 0.5 MPa. This compact stroke length is ideal for tight automation sequences requiring rapid, precise linear movement.
This variant includes a built-in magnet (-S) for use with CMSE and DMSE series sensor switches. The barrel features dual-sided sensor grooves, and the standard configuration uses a durable carbon steel piston rod alongside PT tapered port threads to ensure a leak-free pneumatic connection.
Airtac SAI40 Standard Air Cylinder SAI40X40S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 SAI40X40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 SAI40X40S Is Used
Short-Stroke Clamping
Provides reliable 628 N clamping force for holding lightweight workpieces during machining or assembly operations.
Package Diverting
Ideal for actuating conveyor diverters or sorting gates where a fast, compact 40mm extension is required.
Valve Actuation
Deploys precise linear motion to pilot mechanical valves or operate small process gates in tight machinery layouts.
Is the Airtac SAI40 Standard Air Cylinder SAI40X40S the Right Cylinder?
If your application requires more thrust, stepping up to the 50mm bore provides 982 N of push force at 0.5 MPa. Conversely, dropping to the 32mm bore reduces the footprint but offers only 402 N. Because this is a 40mm stroke, side-load bending is minimal, but always ensure axial load alignment to maximize bearing life.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 profile cylinders. It uses a G1/4 port, M12x1.25 rod thread, and can be paired with FA/FB flanges or TC trunnion mounts. Note that the adjustable air cushions only decelerate the piston near stroke end; if you need to hold a load without live air pressure, consider the SAIL locking variant 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 SAI40X40S FAQ
At an operating pressure of 0.5 MPa, the SAI40X40-S cylinder provides a push force of 628 N and a pull force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X40-S includes a magnet (-S) and features sensor grooves on both sides of the extruded aluminum barrel, making it fully compatible with CMSE and DMSE series sensor switches.
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.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40X40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.