Airtac SAI63 Standard Cylinder SAI63AX15S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX15S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 15mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke15 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX15S
The AirTAC SAI63X15-S is a double-acting ISO 15552 profile cylinder engineered for exceptionally short linear movements. Delivering a robust 1559 N push force at 0.5 MPa, this 63 mm bore unit is tailored for high-force clamping and ejection tasks where standard 25 mm strokes are simply too long. The 15 mm stroke is a custom made-to-order dimension designed to fit tight machinery layouts.
Built with a SUS420J2 stainless steel piston rod, this model provides enhanced corrosion resistance compared to standard carbon steel. The integrated -S magnet enables seamless position detection using CMSE or DMSE series switches mounted directly into the dual sensor grooves on the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX15S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX15S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63AX15S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×15 | 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 SAI63 Standard Cylinder SAI63AX15S Is Used
Short-Stroke Clamping
Applies 1559 N of holding force to secure heavy workpieces during machining or welding operations within a 15 mm travel envelope.
High-Force Ejection
Punches or ejects finished parts from tight press cavities where a full 25 mm stroke would bottom out against the machine frame.
Compact Positioning
Shifts heavy gantry stops or tooling plates by exactly 15 mm, utilizing the dual sensor grooves and -S magnet for immediate end-of-stroke confirmation.
Is the Airtac SAI63 Standard Cylinder SAI63AX15S the Right Cylinder?
Selecting this 15 mm stroke variant is ideal when a compact, high-thrust actuator is required to execute brief, powerful movements without consuming excessive axial space. If your application requires slightly more travel distance, stepping up to the standard SAI63X25 provides a 25 mm stroke while maintaining the exact same 1559 N force profile and G3/8 port size.
Because this is a double-acting pneumatic cylinder, it relies on continuous air pressure to hold its position. If power is lost or the valve is centered, the piston will drift and cannot support a suspended load. For applications requiring true mechanical locking in the event of air loss, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock 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 SAI63 Standard Cylinder SAI63AX15S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It can reach up to 2182 N push force at 0.7 MPa.
Yes, the SAI series is dimensionally interchangeable per ISO 15552 standards. You can use this as a drop-in replacement for other ISO 15552 profile cylinders with a 63 mm bore, matching the G3/8 port and mounting interface.
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