Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30 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 SAIJ63AX240-30
The AirTAC SAIJ63X240-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 210 to 240 mm. Belonging to the 63 mm bore class, it delivers a robust push force of 2182 N and pull force of 1402 N at 0.7 MPa, making it well-suited for medium-duty handling tasks.
This variant uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, allowing you to fit CMSE reed or DMSE solid-state switches if position feedback is later required. The rear adjuster acts purely as a mechanical stop to set the end position and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30 |
|---|---|
| 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 SAIJ63AX240-30
| 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 SAIJ63AX240-30 Is Used
Machine Changeover
Dial in the 210-240 mm travel window during product size changes on a packaging line without replacing the entire cylinder assembly.
End-Stop Calibration
Use the rear adjuster to precisely set the retract end position during machine commissioning, compensating for mechanical tolerances.
Assembly Station Positioning
Provide adaptable end-of-stroke positioning for modular assembly fixtures where the exact contact point varies by component batch.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX240-30 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (offering 1374 N push at 0.5 MPa) lacks the necessary thrust, but an 80 mm bore (2513 N push at 0.5 MPa) would be excessive. The 30 mm adjustment range is ideal for product changeovers, letting you dial in the exact end-stop during commissioning without adding external stops or swapping out a fixed-stroke SAI cylinder. If your application requires true load holding without continuous air pressure, consider the SAIL or BSAI locking cylinders instead. To match this ISO 15552 footprint, specify the 63 mm bore, 240 mm stroke, 30 mm adjustment, PT G3/8 port, and the SUS420J2 rod material. Because the stroke is 240 mm, ensure external guiding is used if the load imposes significant side loads.
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 SAIJ63AX240-30 FAQ
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 30 mm. This provides a usable travel window of 210 to 240 mm, which can be fine-tuned during commissioning without changing the cylinder.
At an operating pressure of 0.7 MPa, the SAIJ63X240-30 provides a push (extend) force of 2182 N and a pull (retract) force of 1402 N. The maximum allowable operating pressure is 1.0 MPa.
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