Airtac SAI63 Standard Cylinder SAI63X125S
The AirTAC SAI63 Standard Cylinder SAI63X125S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 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 SAI63 Standard Cylinder SAI63X125S
The AirTAC SAI63X125-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force and 1402 N of pull force at 0.5 MPa. Its extruded aluminum barrel design omits tie rods, providing a smooth exterior that integrates seamlessly into tight machinery layouts.
Equipped with a magnet for position sensing, this unit works directly with CMSE and DMSE switches fitted into the dual sensor grooves. It features a standard carbon steel piston rod and adjustable air cushions at both ends to manage impact energy, ensuring reliable operation in demanding pneumatic setups.
Airtac SAI63 Standard Cylinder SAI63X125S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X125S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 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 SAI63X125S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×125 | 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 SAI63X125S Is Used
Automated Clamping
Provides robust 1559 N clamping force at 0.5 MPa for holding heavy metal components securely during machining or welding processes.
Material Diverting
Uses its 125 mm stroke and integrated magnet for sensor feedback to actuate diverter arms on high-speed packaging lines.
Press Operations
Delivers consistent pressing force for light assembly tasks, utilizing adjustable cushions to prevent end-of-stroke impact damage.
Is the Airtac SAI63 Standard Cylinder SAI63X125S the Right Cylinder?
Select this 63 mm bore when an application requires upward of 1559 N at 0.5 MPa, bridging the gap between the 982 N capacity of the 50 mm bore and the 2513 N output of the 80 mm bore. The 125 mm stroke is optimal for moderate reach tasks without requiring excessive space. Because this is a double-acting cylinder, it relies on continuous air pressure to maintain its position; the integrated air cushions only decelerate the piston at stroke ends and do not function as a locking mechanism.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct replacement for other standard profile cylinders. When ordering, confirm the 200 mm stroke, G3/8 port threads (PT type), and the required -S magnet option for sensor compatibility.
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 SAI63X125S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force.
No, the standard SAI cylinder does not hold position without live pressure. The adjustable cushions only decelerate the piston at stroke ends. For fail-safe load holding, consider the SAIL or BSAI variants.
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Covers non-human-caused product damage.
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