Airtac SAI63 Standard Cylinder SAI63AX135S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX135S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 135mm 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
- Stroke135 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX135S
The AirTAC SAI63X135-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force and 1402 N of pull force at 0.5 MPa. The 135 mm stroke provides an optimal mid-range extension for medium-duty positioning tasks. Its extruded aluminum barrel omits traditional tie-rods, ensuring a clean exterior that resists debris accumulation.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemical environments. The -S suffix denotes an integrated magnet, allowing seamless position detection using DMSE or CMSE reed switches fitted into the dual sensor grooves on the barrel.
Airtac SAI63 Standard Cylinder SAI63AX135S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX135S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 135 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 SAI63AX135S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×135 | 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 SAI63AX135S Is Used
Component Clamping
Provides reliable 1559 N clamping force for securing aluminum or steel workpieces during CNC machining operations.
Package Diverting
Actuates diverters and sorting gates on packaging lines with a responsive 135 mm stroke and DMSE sensor feedback.
Material Forming
Drives medium-duty bending or pressing jigs where the SUS420J2 rod material prevents corrosion from cutting fluids.
Is the Airtac SAI63 Standard Cylinder SAI63AX135S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant upgrades your thrust from 982 N to 1559 N at 0.5 MPa, whereas stepping up to an 80 mm bore yields 2513 N if your application demands heavier loads. The PT (tapered) porting matches legacy pneumatic infrastructure seamlessly.
Because the stroke is under 300 mm, rod-bearing bending stress is minimal, though external guides are still recommended for high side-load offset. If the machinery requires the load to be physically held in place without sustained air pressure, note that this standard cylinder will drift; deploying an AirTAC SAIL pneumatic lock variant or an external rod lock is necessary for fail-safe position holding.
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 SAI63AX135S FAQ
At a standard 0.5 MPa operating pressure, 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 reaches 2182 N.
Yes, the SAI63X135-S is dimensionally interchangeable with other ISO 15552 profile cylinders. You can swap it into existing machinery footprints using standard FA, LB, or TC mounting accessories without modifying the frame.
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