Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-30 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 SAIJ63AX260-30
The AirTAC SAIJ63X260-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 230 to 260 mm, enabling exact end-position tuning at commissioning without swapping the barrel or adding external stops. Operating at 0.15 to 1.0 MPa, it generates 1559 N pull force at 0.5 MPa and 2805 N push at 0.9 MPa.
This variant incorporates a SUS420J2 stainless steel piston rod for enhanced durability against moisture and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-30 |
|---|---|
| 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 SAIJ63AX260-30
| 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 SAIJ63AX260-30 Is Used
Product Changeover
Dial in the 230 to 260 mm travel window during packaging size changes without disassembling the machine.
Machine Setup
Fine-tune the retract end-position during commissioning to hit exact sensor targets and avoid hard crashes.
Variable End Stops
Set precise mechanical stops for clamping or pressing tasks where the exact 260 mm stroke needs slight trimming.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-30 the Right Cylinder?
Choose this 63 mm bore when your application requires the 1559 N pull force at 0.5 MPa, bridging the gap between the 50 mm bore (825 N pull) and the 80 mm bore (2268 N pull). The 30 mm adjustment range is ideal for product changeovers on a line, allowing you to dial in the exact 230 to 260 mm end-stop on the fly instead of machining custom spacers. For fixed travel without a rear screw, the standard SAI cylinder is the alternative.
As an ISO 15552 interchangeable cylinder, replacement requires matching the 63 mm bore, 260 mm stroke, 30 mm adjustment, PT ports, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Because the stroke is 260 mm, an external guide is recommended to prevent side-load wear on the 20 mm rod. For load-holding without live pressure, use an external rod lock or the SAIL/BSAI series.
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 SAIJ63AX260-30 FAQ
At 0.5 MPa, the 63 mm bore provides 1559 N of pull force and 1402 N of push force. At 0.9 MPa, the push force increases to 2805 N.
The rear adjuster screw lets you shorten the 260 mm nominal stroke by up to 30 mm, giving a usable travel window of 230 to 260 mm. It acts as a travel stop and does not lock the load.
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