Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10
The AirTAC SAIJ63X350-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 1559 N push force at 0.5 MPa. Its defining feature is the external 10 mm adjustment screw at the rear cap, which permits precise end-position tuning without swapping out the entire unit. This specific configuration yields a 340-350 mm usable travel window, enabling operators to dial in the exact retraction point during machine commissioning or product changeovers.
Built with an SUS420J2 stainless steel piston rod and PT tapered port threads, this model handles standard industrial demands while resisting corrosion. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. The extruded aluminum barrel features sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAIJ63AX350-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAIJ63AX350-10 Is Used
Long-Stroke Component Seating
Dial in the exact 340-350 mm retraction point during assembly machine commissioning to ensure delicate components are seated perfectly without adding external stopper blocks.
Product Size Changeover
Quickly adjust the rear stopper by up to 10 mm when a production line switches to a slightly different package or part length, minimizing downtime.
End-Stop Calibration
Fine-tune the travel end-point to compensate for mechanical wear or sensor drift over time, maintaining precise positioning without repositioning the cylinder mounts.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10 the Right Cylinder?
Selecting this 63 mm bore cylinder makes sense when your application requires the 1559 N thrust at 0.5 MPa (or 2182 N at 0.7 MPa) and a nominal 350 mm travel, but you need leeway to fine-tune the retract stop on-site. If your setup demands less force, stepping down to a 50 mm bore yields 982 N push at 0.5 MPa; if you need more clamping power, the 80 mm bore provides 2513 N. Because the 350 mm stroke creates a long lever arm, you must use an external guide to prevent excessive side-loading on the SUS420J2 rod.
The integrated 10 mm adjuster acts purely as a mechanical travel stop for end-position tuning, not as a locking device. It cannot hold a load dynamically without live air pressure. For true fail-safe load holding, you would need to specify a related SAIL pneumatic lock or BSAI clamp-lock cylinder instead of this standard SAIJ profile. This model is dimensionally interchangeable per ISO 15552 mounting-interface dimensions.
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 SAIJ63AX350-10 FAQ
At a standard 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. If you increase the supply to 0.7 MPa, the push force rises to 2182 N.
The rear adjustment screw allows you to shorten the effective travel from the nominal 350 mm down to 340 mm. This creates a 340-350 mm usable window for fine-tuning the end position at commissioning, but the screw functions only as a stop and does not lock the load without air pressure.
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