Airtac SAI63 Standard Cylinder SAI63X550
The AirTAC Airtac SAI63 Standard Cylinder SAI63X550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X550
The AirTAC SAI63X550 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its extruded aluminum barrel eliminates tie-rods, providing a smooth, standardized housing that drops directly into ISO 15552 mounting interfaces. The 550 mm stroke is well-suited for mid-range transfer and positioning tasks.
This configuration features a standard carbon steel piston rod and PT tapered port threads. Because no magnet is specified, position sensing via CMSE or DMSE switches is not enabled; add the -S suffix if your application requires end-of-stroke detection. For environments exceeding standard temperatures, the seal stack can be upgraded from standard TPU to Viton (H) or NBR (N).
Airtac SAI63 Standard Cylinder SAI63X550 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 550 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 SAI63X550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×550 | 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 SAI63X550 Is Used
Mid-Range Transfer
Pushes workpieces between machining stations along a 550 mm stroke with 1559 N of thrust.
Pallet Push-Off
Diverts lightweight pallets or totes on packaging lines using standardized ISO 15552 mounting.
Gate Diversion
Actuates routing gates in material handling systems where a 63 mm bore provides optimal force.
Is the Airtac SAI63 Standard Cylinder SAI63X550 the Right Cylinder?
Providing 1559 N at 0.5 MPa, this 63 mm bore fits neatly between the 50 mm bore (982 N) and the 80 mm bore (2513 N). Step down to a 50 mm cylinder if your payload is lighter and you want a smaller G1/4 port footprint, or move up to an 80 mm unit if your system requires greater thrust margins.
At 550 mm, the unsupported stroke length makes the piston rod highly susceptible to bending under side loads. Use an external guide rail or a guided cylinder to prevent rod-bearing damage. Note that the adjustable air cushions only decelerate the piston at stroke ends; if the air supply drops, the load will drift. Use a SAIL variant or external rod lock for fail-safe holding.
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 SAI63X550 FAQ
At 0.5 MPa, this double-acting cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes. The SAI63X550 is dimensionally interchangeable with other ISO 15552 profile cylinders. You can swap it using the existing mounting accessories, PT port, and 550 mm stroke dimensions.
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