Airtac SAI63 Standard Cylinder SAI63BX55
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX55 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke55 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 SAI63BX55
The AirTAC SAI63X55 is a double-acting ISO 15552 profile cylinder built for compact, high-force tasks. It delivers 1559 N of push force at 0.5 MPa, making it ideal for short-stroke clamping and holding. The extruded aluminum barrel omits tie-rods for a clean exterior.
This unit features a SUS304 stainless steel piston rod for superior corrosion resistance. Because a magnet is not specified, it uses standard seals without sensor tracks. For operations requiring end-position sensing, you can specify the -S option to equip CMSE or DMSE switches in the dual side grooves.
Airtac SAI63 Standard Cylinder SAI63BX55 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX55 |
|---|---|
| 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 SAI63BX55
| 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 SAI63BX55 Is Used
Short-Stroke Clamping
Generates 1559 N at 0.5 MPa to securely hold heavy metal workpieces during machining operations.
Pallet Stopping
Extends 55 mm to act as a high-force stop gate for medium-duty pallets on assembly lines.
Ejector Mechanism
Provides rapid ejection of finished parts from press dies using its 30-800 mm/s speed range.
Is the Airtac SAI63 Standard Cylinder SAI63BX55 the Right Cylinder?
At 0.5 MPa, this 63 mm bore generates 1559 N, sitting between the 50 mm (982 N) and 80 mm (2513 N) bores. Choose this size when a 50 mm cylinder lacks thrust but an 80 mm unit is physically too large. The 55 mm stroke is non-standard but offers a precise 110 mm total travel for tight fixtures.
This cylinder uses PT tapered port threads. Being a standard double-acting actuator, it relies on live air pressure to hold position; if air drops, the load drifts. For fail-safe holding, use the SAIL variant with an air-released lock. The standardized ISO 15552 mounting interface allows direct interchange with other profile cylinders of the same bore.
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 SAI63BX55 FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. At 0.7 MPa, it pushes with 2182 N.
Yes, it is dimensionally interchangeable per ISO 15552 standards, meaning it matches the mounting footprint of other 63 mm profile cylinders.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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