Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10
The AirTAC SAIJ63X240-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 10 mm. This yields a precise 230-240 mm usable travel window, enabling exact end-position tuning at commissioning without swapping out the barrel or adding external stops. It delivers a robust 2182 N of push force at 0.7 MPa, making it well-suited for medium-duty positioning tasks.
This unit is built with a SUS420J2 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Mounting options cover the standard SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 240 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 SAIJ63AX240-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×240 | 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 SAIJ63AX240-10 Is Used
Machine Changeover
Dial in the 230-240 mm travel window during product size changes, setting the exact retract position without altering the PLC program.
End-Stop Calibration
Fine-tune the final end position during commissioning, absorbing minor mechanical tolerances without installing external physical stops.
Assembly Positioning
Provides 2182 N of push force at 0.7 MPa to move medium-weight jigs, with the rear screw allowing precise clearance adjustments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-10 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (providing 1374 N push at 0.7 MPa) is too weak, but an 80 mm bore (3518 N) would be overkill. The 10 mm rear adjuster is ideal for product changeovers on a line, letting you dial in the exact 230-240 mm end-stop mechanically rather than reprogramming the entire machine cycle. Because the adjuster is a travel stop and not a lock, this cylinder will not hold a suspended load without live air; for fail-safe load holding, consider the SAIL or BSAI series instead. When replacing an ISO 15552 cylinder, match the 63 mm bore, 240 mm stroke, 10 mm adjustment, PT port, and mounting bracket.
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 SAIJ63AX240-10 FAQ
At 0.7 MPa operating pressure, this 63 mm bore cylinder provides 2182 N of push force and 1402 N of pull force. It can deliver up to 2805 N push at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 240 mm nominal stroke by up to 10 mm, creating a 230-240 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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