Airtac SAI63 Standard Cylinder SAI63AX155S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX155S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX155S
The AirTAC SAI63X155-S is a double-acting ISO 15552 profile cylinder engineered to deliver a robust 1559 N push force at 0.5 MPa. This 155 mm stroke length is highly versatile, providing the precise mid-range travel needed for clamping, lifting, and indexing tasks. Because it utilizes an extruded aluminum barrel rather than a traditional tie-rod design, it offers a clean exterior with integrated mounting flexibility.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance in humid environments. The -S suffix indicates an integrated magnet, allowing seamless operation with CMSE and DMSE series reed switches fitted into the sensor grooves on both sides of the barrel. Fluid ports feature PT tapered threading, ensuring a reliable, tight pneumatic connection.
Airtac SAI63 Standard Cylinder SAI63AX155S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX155S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 155 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 SAI63AX155S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×155 | 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 SAI63AX155S Is Used
Automated Clamping
Secures medium-duty machined components during milling or drilling operations with reliable 1559 N holding force.
Product Diversion
Actuates routing gates on packaging lines, utilizing the 155 mm stroke to push cartons smoothly onto secondary belts.
Press Assembly
Drives lightweight bearings or pins into housings on automated assembly lines with consistent, repeatable thrust.
Is the Airtac SAI63 Standard Cylinder SAI63AX155S the Right Cylinder?
Providing 1559 N at 0.5 MPa, this bore size sits perfectly between the 50mm option (982 N) and the 80mm option (2513 N), making it ideal when a 50mm cylinder lacks thrust but an 80mm unit would consume excessive physical space. For applications requiring the piston to maintain its position during a sudden loss of air pressure, remember that the standard adjustable air cushions only decelerate the rod at stroke ends and do not act as a locking mechanism. In those scenarios, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. As a genuine ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard 63mm bore, 155mm stroke, G3/8 port, PT threaded unit with a magnet, utilizing FA/FB flanges or CA/CB clevis mounts.
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 SAI63AX155S FAQ
At a 0.5 MPa operating pressure, the SAI63X155-S generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X155-S is dimensionally interchangeable per ISO 15552 standards. It can serve as a drop-in replacement for other 63mm profile cylinders with a G3/8 port and 155mm stroke, provided your mounting hardware matches.
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