Airtac SAI63 Standard Cylinder SAI63X50
The AirTAC Airtac SAI63 Standard Cylinder SAI63X50 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 SAI63X50
The AirTAC SAI63X50 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 50mm stroke. It provides a thrust of 1559 N at 0.5 MPa, making it well-suited for short-trroke clamping and lifting tasks. The extruded aluminum barrel eliminates tie-rods, providing a clean exterior that simplifies mounting.
This unit comes equipped with standard carbon steel piston rod material and utilizes a PT tapered thread for the G3/8 port. For environments requiring position feedback, the barrel features dual sensor grooves compatible with CMSE or DMSE switches, though a magnet (-S) must be specified for those sensors to function.
Airtac SAI63 Standard Cylinder SAI63X50 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X50 |
|---|---|
| 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 SAI63X50
| 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 SAI63X50 Is Used
Short-Stroke Clamping
Ideal for holding workpieces securely in machining fixtures where 1559 N of force is required over a compact 50mm travel distance.
Package Diverter
Provides robust actuation for routing heavy boxes or totes on a packaging line, utilizing its 0.15-1.0 MPa operating range.
Press Assembly
Delivers precise downward thrust for pressing small bearings or pins into housings without requiring a full hydraulic press.
Is the Airtac SAI63 Standard Cylinder SAI63X50 the Right Cylinder?
Select this 63mm bore when a 50mm bore (982 N at 0.5 MPa) lacks sufficient push force, but you want to avoid the bulk of an 80mm model (2513 N at 0.5 MPa). Because the stroke is only 50mm, side-load stress on the rod bearing is minimal, meaning no external guide is strictly necessary for standard loads. To mount this ISO 15552 profile cylinder, match the 63mm interface, 50mm stroke, G3/8 PT port, and choose accessories like FA flanges or TC trunnions. If the machine loses air pressure, this cylinder cannot hold a load; it will drift. For fail-safe holding, specify the SAIL variant or use an external rod 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 SAI63X50 FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. If operating pressure increases to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X50 is dimensionally interchangeable per ISO 15552 standards. It shares the same mounting interface, G3/8 port, and 50mm stroke as other ISO 15552 profile cylinders.
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