Airtac SAI63 Standard Cylinder SAI63AX50S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX50S
The AirTAC SAI63X50-S is a double-acting ISO 15552 profile cylinder engineered for tasks requiring substantial thrust within a compact footprint. Delivering a push force of 1559 N at 0.5 MPa, this 63 mm bore unit with a 50 mm stroke is optimal for short, powerful clamping operations. Its extruded aluminum barrel design strictly adheres to the ISO 15552 mounting interface, ensuring seamless interchangeability with other standard profile cylinders.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for superior corrosion and wear resistance in harsh environments. Equipped with a built-in magnet (-S), it readily integrates with CMSE and DMSE sensor switches housed in the dual-side grooves of the barrel. Fluid porting utilizes PT tapered threads, and the standard TPU seals accommodate an operating temperature range of -20 to +70 C.
Airtac SAI63 Standard Cylinder SAI63AX50S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAI63AX50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 SAI63AX50S Is Used
Heavy-Duty Stamping
Provides the necessary 1559 N output force at 0.5 MPa for securely stamping and forming metal components in automated fabrication lines.
Product Diversion
Executes rapid 50 mm linear strokes to push heavy workpieces onto secondary processing tracks without interrupting the main material flow.
Pneumatic Clamping
Generates robust holding pressure for machining operations, utilizing its SUS420J2 stainless steel rod to withstand repetitive clamping cycles.
Is the Airtac SAI63 Standard Cylinder SAI63AX50S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant is justified when your application requires more than the 982 N of push force offered by the 50 mm bore at 0.5 MPa. The 50 mm stroke is highly effective for brief, high-impact motions where maintaining a compact overall length is critical. Because standard SAI cylinders rely on adjustable air cushions to decelerate the piston at stroke ends and do not feature a mechanical lock, any requirement to hold a load securely without continuous air pressure should be addressed using the SAIL (air-released lock) or BSAI (clamp-lock) variant.
For a direct ISO 15552 replacement, verify that your existing setup matches this cylinder's 63 mm bore, 50 mm stroke, PT G3/8 port size, and desired mounting accessory (such as FA flange or TC trunnion). The included magnet enables precise end-of-stroke detection, making it a highly capable drop-in upgrade for automated systems.
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 SAI63AX50S FAQ
At a standard operating pressure of 0.5 MPa, this 63 mm bore cylinder produces a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes. It is built to the exact ISO 15552 profile standard, meaning its mounting dimensions are fully interchangeable with other ISO 15552 compliant cylinders. Ensure your system matches the G3/8 PT ports and 50 mm stroke.
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