Airtac SAI63 Standard Cylinder SAI63X275
The AirTAC Airtac SAI63 Standard Cylinder SAI63X275 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X275
The AirTAC SAI63X275 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 275 mm stroke makes it well-suited for mid-range linear actuation tasks requiring reliable extension and retraction.
This model features a standard carbon steel piston rod and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, allowing for easy position detection when paired with a magnet-equipped variant.
Airtac SAI63 Standard Cylinder SAI63X275 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X275 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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 SAI63X275
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×275 | 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 SAI63X275 Is Used
Clamping Mechanisms
Provides robust 1559 N push force at 0.5 MPa for securing heavy metal components during machining operations.
Material Diverting
Actuates routing gates on assembly lines, utilizing the 275 mm stroke to redirect larger product packages effectively.
Press Operations
Drives small pneumatic presses for component insertion, benefiting from the adjustable air cushions at both stroke ends.
Is the Airtac SAI63 Standard Cylinder SAI63X275 the Right Cylinder?
Selecting this bore size provides a significant thrust upgrade over the 50 mm version, which offers 982 N at 0.5 MPa, making the 63 mm bore ideal for heavier payloads. Because this 275 mm stroke exceeds the 250 mm standard increment, it is manufactured as a non-standard length to meet exact application requirements.
Strokes of 300 mm or more require careful attention to side-load management to prevent rod-bearing bending. For this 275 mm stroke, ensure adequate external guidance or consider a guided cylinder to support the load. Note that standard SAI cylinders do not hold position unpowered; if pneumatic failure occurs, the piston will drift. Use the SAIL variant for locking requirements. This unit is dimensionally interchangeable per ISO 15552, matching bore, stroke, PT port, and standard mounting accessories.
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 SAI63X275 FAQ
At an operating pressure of 0.5 MPa, this 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 SAI63X275 is dimensionally interchangeable per ISO 15552. It shares standard mounting interfaces and PT port threads, allowing it to serve as a drop-in replacement for other ISO 15552 profile cylinders.
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