Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S
The AirTAC SAIJ63X140-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 130-140 mm usable travel window, letting you dial back the retract end-position by up to 10 mm during commissioning. Belonging to the 63 mm bore class, it delivers 1559 N of pull force at 0.5 MPa and up to 2805 N at 0.9 MPa.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides, and the -S magnet equips it for non-contact detection with AirTAC CMSE reed or DMSE solid-state switches.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAIJ63AX140-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SAIJ63AX140-10S Is Used
End-Position Tuning
Fine-tune the 130-140 mm retract window at machine commissioning to dial in exact stopping points without swapping cylinders.
Product Changeover
Quickly adjust the travel end-stop on packaging lines when handling slightly different package sizes or formats.
Assembly Actuation
Provides 1559 N pull at 0.5 MPa for pressing or lifting tasks where the exact final position needs minor field adjustment.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-10S the Right Cylinder?
Choose this 63 mm bore when your application requires around 1559 N pull force at 0.5 MPa; step down to a 50 mm bore (825 N pull) for lighter loads, or up to an 80 mm bore (2268 N pull) for heavier demands. The adjustable-stroke design is preferred over a fixed SAI cylinder when you need precise end-position tuning for product changeovers without adding external stops. For strokes of 140 mm, the 20 mm rod and M16x1.5 thread handle moderate side loads, but long unsupported travel still requires an external guide. When replacing an ISO 15552 cylinder, match the 63 mm bore, 140 mm stroke, 10 mm adjustment, PT G3/8 port, and -S magnet. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air, use SAIL or BSAI.
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 SAIJ63AX140-10S FAQ
It delivers 1559 N pull and 2182 N push at 0.5 MPa, reaching 2805 N push at 0.9 MPa. The 140 mm nominal stroke can be adjusted backward by up to 10 mm, creating a 130-140 mm usable travel window.
No, the rear adjuster acts only as a travel stop to set the end position, and the air cushions only decelerate the load. Neither functions as a lock or brake. For true load-holding without live air pressure, consider the SAIL or BSAI cylinder series.
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