Airtac SAI63 Standard Cylinder SAI63AX35
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX35 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 35mm 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
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX35
The AirTAC SAI63X35 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 35mm stroke. It delivers a robust push force of 1559 N at 0.5 MPa, making it well-suited for short-travel clamping and high-force positioning tasks.
This unit is configured with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance in humid environments. It uses PT tapered port threads and lacks a magnet. The extruded aluminum barrel includes dual sensor grooves, allowing easy integration of CMSE or DMSE switches if a magnet is added later.
Airtac SAI63 Standard Cylinder SAI63AX35 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX35 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 35 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 SAI63AX35
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×35 | 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 SAI63AX35 Is Used
Short-Stroke Clamping
Provides secure 1559 N holding force for machining fixtures and automated tooling within a tight 35mm travel envelope.
Product Diverting
Drives heavy-duty diverter arms and sorting gates on packaging lines where rapid, forceful actuation is required.
Pressing Operations
Executes light-duty pressing and stamping tasks, benefiting from the rigid ISO 15552 mounting interface to resist offset loads.
Is the Airtac SAI63 Standard Cylinder SAI63AX35 the Right Cylinder?
Choose the 63mm bore when 50mm (982 N at 0.5 MPa) is insufficient but 80mm (2513 N) would be physically oversized. The 35mm stroke is ideal for compact, high-impact actuation. For applications requiring position holding upon air loss, select the SAIL (lock) or BSAI (clamp-lock) variant, as the standard SAI relies solely on live pressure and its adjustable air cushions only decelerate the piston at stroke end.
As a true ISO 15552 profile cylinder, it provides a dimensionally interchangeable mounting interface. Replacement specifications: 63mm bore, 35mm stroke, G3/8 PT port, standard mounting accessories (LB, FA, TC), and no magnet (-S omitted).
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 SAI63AX35 FAQ
At 0.5 MPa operating pressure, the SAI63X35 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 SAI63X35 is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions make it a drop-in replacement for other ISO 15552 cylinders, ensuring easy interchangeability without machine modifications.
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