Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S
The AirTAC SAIJ63X260-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 220-260 mm usable travel window, allowing you to dial back the 260 mm nominal stroke by up to 40 mm during commissioning. Delivering 1559 N of pull force at 0.5 MPa, it handles robust actuation while maintaining a standard ISO 15552 mounting footprint.
This specific configuration includes a SUS420J2 stainless steel rod for superior corrosion resistance and an integrated magnet (-S) for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides, and pneumatic cushioning at both ends manages deceleration. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, consider the SAIL or BSAI series.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 260 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 SAIJ63AX260-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×260 | 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 SAIJ63AX260-40S Is Used
Product Changeovers
Dial in the 220-260 mm travel window on the fly to accommodate varying product lengths without physically swapping the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke end during machine commissioning to achieve precise seating forces, using the rear screw to hit exact tolerances.
Assembly Line Actuation
Leverage the 1559 N pull force at 0.5 MPa to move jigs and fixtures, using the SUS420J2 stainless rod in environments where minor corrosion resistance is beneficial.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-40S the Right Cylinder?
Choose this 63 mm bore cylinder when your application requires 1559 N pull force at 0.5 MPa alongside precise end-position tuning. If your setup demands less force, the 50 mm bore offers 825 N pull; if you need more, the 80 mm bore provides 2268 N. The adjustable stroke is ideal for product-size changeovers, eliminating the need to swap cylinders or bolt on external stops. For drop-in replacement, match the 63 mm bore, 260 mm stroke, 40 mm adjustment, PT tapered port threads, and the -S magnet.
Because the 260 mm stroke exceeds 300 mm? No, but even at 260 mm, an M16x1.5 rod thread handles moderate side loads, yet long unsupported strokes still require an external guide to prevent rod binding. Mounting options include the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The cylinder operates at 30-800 mm/s.
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 SAIJ63AX260-40S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 40 mm. This creates a 220-260 mm adjustable travel window, allowing you to fine-tune the retract end position at commissioning or during product changeovers without replacing the cylinder.
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. The rear adjuster and air cushions only manage travel ends and do not hold the load without live air.
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