Airtac SAI63 Standard Cylinder SAI63X55S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X55S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X55S
The AirTAC SAI63X55-S is a double-acting ISO 15552 profile cylinder featuring a specialized 55mm stroke. It provides a thrust of 1559 N at 0.5 MPa, making it well-suited for short-travel clamping and positioning tasks. The extruded aluminum barrel design omits tie rods for a cleaner exterior.
This specific configuration includes a piston magnet for use with CMSE and DMSE reed switches, riding smoothly in the dual sensor grooves machined into both sides of the barrel. It is built with a standard carbon steel piston rod and features PT tapered port threads.
Airtac SAI63 Standard Cylinder SAI63X55S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X55S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 55 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 SAI63X55S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×55 | 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 SAI63X55S Is Used
Short-Stroke Clamping
Delivers 1559 N of clamping force at 0.5 MPa for securing heavy machined parts during milling or drilling operations.
Package Diverting
Provides a compact 55mm stroke to rapidly extend diverter arms on high-speed packaging conveyor lines.
Gate Ejection
Uses the integrated magnet with DMSE sensors to confirm short ejection strokes in automated assembly machinery.
Is the Airtac SAI63 Standard Cylinder SAI63X55S the Right Cylinder?
Choosing this specific 63mm bore over the smaller 40mm option upgrades your force output from 628 N to 1559 N at 0.5 MPa. If your application requires even less travel, stepping down to a standard 50mm stroke avoids custom manufacturing. Because 55mm is a non-standard stroke, it is manufactured as a made-to-order item.
As a true ISO 15552 profile cylinder, it serves as a direct dimensional drop-in replacement for any other ISO 15552 cylinder of the same bore and stroke. When ordering, confirm the G3/8 port, M16x1.5 rod thread, and your preferred mounting accessory like a TC trunnion or FA flange. Note that this standard cylinder relies on adjustable air cushions for end-of-stroke deceleration only; it will not hold a load if air pressure is lost.
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 SAI63X55S FAQ
At 0.5 MPa, this 63mm bore 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 SAI series is dimensionally interchangeable per ISO 15552 standards. You can drop it into existing mounting footprints, matching the 63mm bore, G3/8 port, and M16x1.5 rod thread.
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