Airtac SAI63 Standard Cylinder SAI63X155
The AirTAC SAI63 Standard Cylinder SAI63X155 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke155 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 SAI63X155
The AirTAC SAI63X155 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa and 1402 N of pull force. Its 155 mm stroke provides the exact mid-range extension needed for automated clamping and material handling tasks. The extruded aluminum barrel design eliminates tie-rods, resulting in a cleaner profile that easily drops into standardized ISO 15552 mounting interfaces.
This configuration features a standard carbon steel piston rod and PT tapered port threading. Because it lacks a built-in magnet, the barrel's dual sensor grooves remain available for future upgrades if position detection becomes necessary. The cylinder also incorporates adjustable air cushions at both ends to decelerate the piston smoothly, minimizing end-of-stroke impact.
Airtac SAI63 Standard Cylinder SAI63X155 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X155 |
|---|---|
| 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 SAI63X155
| 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 SAI63X155 Is Used
Automated Clamping
Provides 1559 N of clamping force at 0.5 MPa to secure heavy metal workpieces during CNC machining operations.
Material Diversion
Extends 155 mm to actuate diverter gates on packaging lines, moving products between parallel conveyors.
Press Assembly
Drives small bushings or pins into housings on automated assembly lines, utilizing adjustable cushions to protect delicate components.
Is the Airtac SAI63 Standard Cylinder SAI63X155 the Right Cylinder?
Selecting this 63 mm bore is ideal when a 50 mm bore (offering 982 N push at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N) would be physically oversized and consume excessive air volume. The 155 mm stroke hits a sweet spot for compact machinery, though any application requiring rigid positioning under fluctuating loads should rely on external guide rails rather than the rod bearing alone.
Because this is a standard double-acting cylinder, it will not maintain its position if air pressure is lost or exhausted; the piston will drift. If your workflow demands fail-safe load holding without live pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. For direct replacements, match the 63 mm bore, 155 mm stroke, G3/8 PT port, and appropriate mounting accessories like an FA flange or TC trunnion.
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 SAI63X155 FAQ
Operating at 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X155 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement by matching the 63 mm bore, 155 mm stroke, G3/8 port, and your existing mounting hardware.
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