Airtac SAI50 Standard Cylinder SAI50AX40S
The AirTAC SAI50 Standard Cylinder SAI50AX40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 40mm 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.
- BoreØ50 mm
- Stroke40 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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 SAI50 Standard Cylinder SAI50AX40S
The AirTAC SAI50X40-S is a double-acting ISO 15552 profile cylinder engineered for compact actuation, delivering a push force of 982 N at 0.5 MPa. Its 40 mm stroke makes it highly effective for short-travel clamping, gating, and ejection tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration includes a magnet for position sensing (-S) and an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance. The barrel features sensor grooves on both sides, allowing seamless integration of CMSE or DMSE reed switches. Fluid ports utilize a PT tapered thread standard, ensuring robust sealing in pneumatic systems.
Airtac SAI50 Standard Cylinder SAI50AX40S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50AX40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | 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 SAI50 Standard Cylinder SAI50AX40S Is Used
Short-Stroke Clamping
Ideal for holding workpieces securely during machining operations, utilizing its 982 N push force within a tight 40 mm travel envelope.
Diverter Gate Actuation
Provides rapid, repeatable movement for routing packages on production lines where space constraints demand a compact 50 mm bore profile.
Product Ejection
Delivers swift ejection of finished parts from testing fixtures, with the -S magnet enabling precise end-of-stroke confirmation via DMSE sensors.
Is the Airtac SAI50 Standard Cylinder SAI50AX40S the Right Cylinder?
Selecting this 50 mm bore over a 40 mm bore upgrades your push force from 628 N to 982 N at 0.5 MPa, which is ideal when a smaller cylinder stalls under load. Conversely, dropping to a 32 mm bore yields only 402 N, making the 50 mm size the optimal mid-range choice. Because the stroke is only 40 mm, side-load stress on the rod bearing is minimal, negating the need for external guides.
As a true ISO 15552 profile cylinder, it offers a direct mounting interface for other ISO 15552 compliant actuators. To match this exact unit, specify a 50 mm bore, 40 mm stroke, PT port threads, and the -S magnet option. Note that the standard SAI does not hold loads without constant air pressure; if your application requires dead-stop holding, consider the SAIL lock 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 SAI50 Standard Cylinder SAI50AX40S FAQ
The SAI50X40-S generates a push force of 982 N at 0.5 MPa and a pull force of 825 N at 0.5 MPa. At the maximum operating pressure of 1.0 MPa, it can deliver up to 200 kgf.
Yes, the SAI50X40-S is a genuine ISO 15552 profile cylinder, making its mounting dimensions fully interchangeable with other ISO 15552 standard cylinders. Ensure your setup accommodates PT tapered port threads and the -S magnet option.
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