Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S
The AirTAC SAIJ63X250-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 1559N push force at 0.5 MPa, making it well-suited for mid-range industrial actuation. By turning the rear screw, you achieve a 240-250mm usable travel window, allowing precise end-position tuning without adding external stops.
This specific SKU features an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a built-in magnet for position sensing. It operates at 30-800mm/s and accepts PT-threaded G3/8 ports. The extruded aluminum barrel incorporates sensor grooves on both sides, seamlessly accommodating CMSE reed and DMSE electronic solid-state switches.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAIJ63AX250-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SAIJ63AX250-10S Is Used
Precision End-Stop Tuning
Dial in the exact 240-250mm travel limit during machine commissioning to perfect part seating or clamping depth without swapping physical hardware.
Sensor-Driven Changeover
Leverage the integrated magnet with DMSE electronic switches to confirm retracted positions across slightly varying product sizes on automated lines.
Corrosion-Resistant Actuation
Utilize the SUS420J2 stainless steel rod in humid or mildly corrosive manufacturing environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-10S the Right Cylinder?
Select this 63mm bore when a 50mm cylinder's 982N push force at 0.5MPa is insufficient, but an 80mm bore (2513N) would be physically oversized. The 10mm adjustment range is ideal for applications needing slight commissioning tweaks rather than massive product changeovers. For fixed-position tasks requiring no end-tuning, a standard SAI cylinder offers identical ISO 15552 footprint compatibility.
Because this is a 250mm stroke, ensure adequate external guiding to prevent excessive side-loading on the SUS420J2 rod. The rear adjuster acts purely as a travel stop to set deceleration, not as a locking device; it will not hold a load without live air pressure. For true pneumatic load-holding, consider an AirTAC SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX250-10S FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from its 250mm nominal length down to 240mm. This creates a 240-250mm usable travel window for fine-tuning the end position.
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