Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10
The AirTAC SAIJ63X135-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 135 mm nominal travel by up to 10 mm for a precise 125-135 mm usable window. Delivering 1559 N of push force at 0.5 MPa, it handles mid-range automation tasks with ease. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This configuration uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads with a G3/8 connection. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position during commissioning; it does not lock the load without live air. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 |
|---|---|
| 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10
| 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 Is Used
End-Position Tuning
Dial in the exact retract distance within the 125-135 mm window during machine commissioning without physically swapping out the actuator.
Product Changeover
Quickly adjust the stroke by a few millimeters on a packaging line when switching to a different product size, minimizing downtime.
Mid-Range Positioning
Leverage the 1559 N push force to move intermediate loads precisely, relying on the rear stop to prevent over-travel.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 the Right Cylinder?
Choose this 63 mm bore cylinder when a 50 mm bore (982 N push at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N) would be excessive. The 10 mm adjustable range is perfect for applications requiring exact end-position tuning at setup or during product changeovers, eliminating the need to swap cylinders or add external stops. Unlike a fixed-stroke SAI cylinder, the SAIJ allows on-the-fly travel trimming.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 135 mm stroke, PT port threads, and mounting choice. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. As this is a single-rod design with a 20 mm rod and M16x1.5 thread, ensure your mechanical setup handles side loads properly, using an external guide if the stroke is heavily loaded.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. The operational speed range is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 135 mm down to 125 mm. It only sets the travel end point and does not hold the load without continuous air pressure.
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