Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30S 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 SAIJ63AX240-30S
The AirTAC SAIJ63X240-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 240 mm stroke that can be fine-tuned backward by up to 30 mm, creating a precise 210-240 mm usable travel window. Delivering 1559 N of pull force at 0.5 MPa, it fits mid-range automation tasks perfectly.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and fluid control is managed via a G3/8 port.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30S |
|---|---|
| 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 SAIJ63AX240-30S
| 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 SAIJ63AX240-30S Is Used
Product Changeovers
Quickly dial in the 210-240 mm travel window during format size changes on a packaging line without swapping out the entire actuator.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to achieve exact material placement, preventing mechanical crashes.
Variable Diverter Stroke
Adjust the stroke length on the fly for a sorting diverter arm to accommodate different package widths on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30S the Right Cylinder?
Select this 63 mm bore cylinder when an application requires 1559 N pull force at 0.5 MPa but demands variable end-positioning during commissioning. If you need less force, stepping down to the 50 mm bore yields 825 N pull, while stepping up to the 80 mm bore provides 2268 N. Choose this adjustable SAIJ model over a fixed SAI when you need to dial in the retract end-stop without adding external stops.
Because the stroke is 240 mm, ensure adequate external guidance to prevent excessive side-loading on the rod. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This unit is dimensionally interchangeable per ISO 15552 and uses a PT tapered port thread.
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 SAIJ63AX240-30S FAQ
It features a rear adjusting screw that allows you to shorten the effective stroke by up to 30 mm. This provides a usable travel window of 210-240 mm, which can be fine-tuned during commissioning without changing the cylinder's physical mounting.
At 0.5 MPa operating pressure, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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