Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S
The AirTAC SAIJ63X280-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 1559 N push force at 0.5 MPa, stepping up to 2805 N at 0.9 MPa. The integrated -10 mm adjustment code creates a precise 270-280 mm usable travel window, allowing you to dial in the retract end position without swapping out the entire actuator.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing. It is designed to accept PT tapered port threads and utilizes an extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a travel stop to fine-tune deceleration, not as a lock, meaning live air is required to hold the load.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 280 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 SAIJ63AX280-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×280 | 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 SAIJ63AX280-10S Is Used
Machine Changeover
Quickly adapt the 270-280 mm travel end-stop during product size changes on a packaging line without replacing the actuator.
End-Position Tuning
Fine-tune the retract position at commissioning to achieve exact alignment, compensating for mechanical tolerances in the fixture.
Assembly Pressing
Apply up to 2805 N of pressing force at 0.9 MPa, using the rear stopper to precisely limit the insertion depth of components.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-10S the Right Cylinder?
Choose this 63 mm bore 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 physically excessive. The adjustable stroke is ideal for machine setup and product changeovers, letting you fine-tune the end stop at commissioning rather than machining external spacers. Because the nominal stroke is 280 mm, ensure adequate external guiding to prevent excessive side loading on the rod.
For a drop-in ISO 15552 replacement, match the 63 mm bore, 280 mm nominal stroke, 10 mm adjustment range, PT ports, and the -S magnet. This actuator supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your application requires true load holding without continuous air pressure, use an external pilot-operated check valve or select the SAIL or BSAI locking cylinder series.
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 SAIJ63AX280-10S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.9 MPa, the push force increases to 2805 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a 270-280 mm usable travel window. This stopper only sets the end position; it does not lock the load without live air pressure.
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