Airtac SAI63 Standard Cylinder SAI63X50SFTC
The AirTAC Airtac SAI63 Standard Cylinder SAI63X50SFTC 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 SAI63X50SFTC
The AirTAC SAI63X50-S is a double-acting ISO 15552 profile cylinder engineered for compact, high-force actuation. Operating at 0.5 MPa, it generates 1559 N of push force and 1402 N of pull force, making it highly effective for short-stroke clamping and heavy positioning tasks.
Equipped with a magnetic piston (-S), this unit supports CMSE and DMSE sensor switches via the integrated dual-side grooves on its extruded aluminum barrel. The standard carbon steel piston rod provides robust durability for industrial automation, while the adjustable air cushions at both ends ensure smooth deceleration.
Airtac SAI63 Standard Cylinder SAI63X50SFTC Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X50SFTC |
|---|---|
| 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 SAI63X50SFTC
| 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 SAI63X50SFTC Is Used
Heavy-Duty Clamping
Provides 1559 N of secure clamping force at 0.5 MPa for holding heavy metal components during machining or welding processes.
Parts Ejection
Delivers rapid, high-impact ejection of finished parts from press dies, utilizing the 50 mm short stroke for fast cycling.
Positioning Stops
Acts as a robust mechanical stop in automated assembly lines, using the magnetic piston for precise end-of-stroke position confirmation.
Is the Airtac SAI63 Standard Cylinder SAI63X50SFTC the Right Cylinder?
Selecting this 63 mm bore with a 50 mm stroke is optimal when applications demand high thrust within a minimal footprint. If your assembly requires less force, stepping down to the 50 mm bore yields 982 N at 0.5 MPa, whereas upgrading to the 80 mm bore provides 2513 N for heavier loads.
For drop-in replacements, this cylinder matches the ISO 15552 mounting interface using an FTC trunnion accessory, a PT tapered port thread, and the included magnet. Because it is a standard double-acting cylinder, it will not maintain its position if air pressure is lost; applications requiring static holding should utilize the SAIL variant with an air-released lock.
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 SAI63X50SFTC FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 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, the SAI63X50-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 63 mm bore and 50 mm stroke, matching the FTC mounting and PT port specifications.
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