Airtac SAI40 Standard Air Cylinder SAI40AX20S
The AirTAC SAI40 Standard Air Cylinder SAI40AX20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 SAI40AX20S
The AirTAC SAI40X20-S is a double-acting ISO 15552 profile cylinder engineered for compact actuation. It provides a push force of 628 N and a pull force of 528 N at 0.5 MPa. The 20 mm stroke is optimal for high-cycle clamping and ejection tasks where space is strictly limited.
This unit features a SUS420J2 stainless steel piston rod (option A) for superior corrosion resistance in humid washdown environments. Equipped with a magnetic piston (-S), it integrates seamlessly with CMSE or DMSE reed switches fitted into the dual sensor grooves on the extruded aluminum barrel.
Airtac SAI40 Standard Air Cylinder SAI40AX20S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 SAI40AX20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 SAI40AX20S Is Used
Short-Stroke Clamping
Ideal for securing lightweight workpieces during machining or assembly, utilizing its 628 N push force within tight fixture clearances.
Package Ejection
Provides rapid, repetitive ejection of small components or packaging off a conveyor belt, benefiting from the 20 mm fast extension.
Valve Actuation
Suitable for automating small process valves or gates where a compact footprint and reliable magnetic switching are required.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX20S the Right Cylinder?
For slightly lower force requirements, the 32 mm bore offers 402 N at 0.5 MPa, whereas the 50 mm bore steps up to 982 N for heavier loads. Because this 20 mm stroke is very short, rod-bearing bending is negligible, eliminating the need for external guide rails.
This model uses PT tapered port threads and a G1/4 air connection. As a standard double-acting cylinder, it will drift if air pressure is lost; use the SAIL variant if your application requires a mechanical lock to hold a load safely. Being dimensionally interchangeable per ISO 15552, it serves as a direct replacement for any standard ISO 15552 profile cylinder.
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 SAI40AX20S FAQ
At an operating pressure of 0.5 MPa, this double-acting 40 mm bore cylinder generates a push force of 628 N and a pull force of 528 N.
Yes, the SAI40X20-S is a genuine ISO 15552 profile cylinder, making it dimensionally 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.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40AX20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.