Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-10
The AirTAC SAIJ63X300-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 290-300 mm usable travel window, letting you dial back the 300 mm nominal stroke by up to 10 mm during commissioning. Delivering 1559 N of push force at 0.5 MPa, it handles robust positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses a SUS420J2 stainless steel rod (option A) for superior corrosion resistance. It features PT tapered ports and lacks a standard piston magnet, meaning position sensing requires external or custom solutions rather than CMSE or DMSE switches. 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 SAIJ63AX300-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAIJ63AX300-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 SAIJ63AX300-10 Is Used
Machine Changeover
Fine-tune the 290-300 mm travel end during product size changes to avoid recalculating fixed stop positions.
Assembly Positioning
Dial in the exact retraction point for a 1559 N press operation without installing secondary external stops.
Automated Ejection
Adjust the ejection stroke by up to 10 mm on the fly to accommodate varying workpiece dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX300-10 the Right Cylinder?
Choose this 63 mm bore when you need more thrust than the 50 mm version (982 N at 0.5 MPa) but want a smaller footprint than the 80 mm class (2513 N at 0.5 MPa). The 10 mm adjustment range is ideal for applications requiring exact end-position tuning without swapping cylinders or adding external stops. Because the stroke is 300 mm, an external guide is recommended to prevent side-loading damage to the 20 mm rod and M16x1.5 thread. For load-holding without live air, consider the SAIL or BSAI series, as the adjuster here is a stop, not a lock. To match this ISO 15552 cylinder, specify a 63 mm bore, 300 mm stroke, 10 mm adjustment, PT G3/8 ports, and no magnet.
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 SAIJ63AX300-10 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N of push force at 0.9 MPa.
A rear screw stopper lets you mechanically shorten the 300 mm nominal stroke by up to 10 mm, creating a 290-300 mm usable travel window. This stopper only sets the end position and does not lock or hold the load without continuous air pressure.
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