Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 220mm 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
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75
The AirTAC SAIJ63X220-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 145 to 220 mm usable travel window. Delivering 1559 N of pull force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses a PT tapered port thread.
This adjustable-stroke design allows precise end-position tuning during commissioning without swapping cylinders or adding external stops. The rear screw acts purely as a travel stop and works alongside standard air cushions to decelerate the load, but it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 220 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 SAIJ63AX220-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×220 | 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 SAIJ63AX220-75 Is Used
Machine Changeover
Rapidly dial in the 145 to 220 mm travel window during product size changes without bolting on physical spacers.
End-Stop Calibration
Fine-tune the exact retract position at commissioning to perfect seating or clamping force against a workpiece.
Variable Pitch Indexing
Accommodate multiple stopping distances on a single assembly line by adjusting the rear stopper as needed.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75 the Right Cylinder?
Choose this 63 mm bore when you need the 1559 N pull force at 0.5 MPa and a highly variable retract end-stop, avoiding the fixed stroke limits of a standard SAI cylinder. If your application requires less force, stepping down to a 50 mm bore yields 825 N pull force, while moving up to an 80 mm bore provides 2268 N. Because the 220 mm stroke exceeds 300 mm is false here, standard guiding applies, but always ensure the SUS420J2 rod handles the expected side loads.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 220 mm nominal stroke, 75 mm adjustment range, PT port thread, and desired mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this series. For load-holding without live pressure, consider an external rod lock or the SAIL/BSAI variants.
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 SAIJ63AX220-75 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force. The maximum thrust is 318 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the 220 mm nominal length, creating a 145 to 220 mm travel window. It functions as a mechanical stop to set the end position and does not lock the load.
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