Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100 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 SAIJ63AX280-100
The AirTAC SAIJ63X280-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to shorten the effective travel by up to 100 mm. This creates a highly flexible usable travel window of 180 to 280 mm, letting you dial in the exact retract position without swapping out the barrel or adding external stops. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for medium-force actuation tasks.
This variant is configured with an SUS420J2 stainless steel rod (code A) for improved corrosion resistance over standard carbon steel. The barrel is an extruded aluminum profile with sensor grooves on both sides, though this specific SKU omits the internal magnet, meaning position sensing via CMSE or DMSE switches is not enabled out of the box. The rear adjuster functions purely as a mechanical stop to set the end position, and like the integrated air cushions, it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100 |
|---|---|
| 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 SAIJ63AX280-100
| 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 SAIJ63AX280-100 Is Used
Product Changeover
Quickly reconfigure the retract distance from 180 to 280 mm on packaging lines without replacing the cylinder or adding external spacers.
End-Stop Tuning
Fine-tune the exact end-of-stroke position during machine commissioning to perfect pressing or forming operations.
Variable Forming
Adjust the mechanical stop on the fly for equipment that processes multiple material lengths or thicknesses.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100 the Right Cylinder?
Choose this 63 mm bore cylinder when your application requires 1559 N of pull force at 0.5 MPa, which sits comfortably between the 982 N of a 50 mm bore and the 2513 N of an 80 mm bore. The 100 mm adjustment range is ideal for machines that undergo frequent product changeovers, allowing the retract end-stop to be fine-tuned on the floor rather than machining new hard stops. Because the nominal stroke is 280 mm, you should ensure adequate external guiding to prevent excessive side-loading on the M16x1.5 rod thread, as long unsupported travels can induce premature wear.
To match this ISO 15552 dimensionally interchangeable cylinder, specify a 63 mm bore, 280 mm stroke, PT tapered G3/8 port, and the SAIJ mounting set which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). If your process requires the piston to hold its position during a complete air pressure loss, note that this standard adjuster is not a lock; you should instead look at the SAIL or BSAI series for true pneumatic locking.
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 SAIJ63AX280-100 FAQ
At 0.5 MPa it provides 1559 N pull force and 2182 N push force at 0.7 MPa. The operational speed range for this 63 mm bore cylinder is 30-800 mm/s.
The rear adjuster acts as a mechanical stop that can shorten the 280 mm nominal stroke by up to 100 mm, giving an effective travel window of 180 to 280 mm. It sets the end position but does not lock the load without live air pressure.
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