Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 230mm 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
- Stroke230 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20
The AirTAC SAIJ63X230-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 210 to 230 mm, allowing you to dial back the nominal 230 mm stroke by up to 20 mm during machine commissioning. Operating at 0.5 MPa, it delivers 1559 N of pull force and 1402 N of push force, making it well-suited for moderate-duty positioning tasks.
This variant uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE reed and DMSE electronic switches if position feedback is later required. The rear adjuster acts strictly as a mechanical stop to fine-tune the end position, not a lock, and the standard variable air cushions at both ends handle end-of-stroke deceleration.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 230 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 SAIJ63AX230-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×230 | 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 SAIJ63AX230-20 Is Used
End-Stop Calibration
Perfect for dialing in the exact 210 to 230 mm travel window during machine commissioning without physically swapping out the cylinder.
Product Changeover
Ideal for production lines running varying part sizes, allowing operators to quickly readjust the retract end-position on the fly.
Stainless Rod Operations
The SUS420J2 stainless steel rod provides the necessary corrosion resistance for manufacturing environments with moisture or mild chemicals.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-20 the Right Cylinder?
Select this 63 mm bore cylinder when your application requires 1559 N of pull force at 0.5 MPa but needs on-the-fly end-position tuning without adding external stops. If your process demands less force, stepping down to a 50 mm bore yields 825 N of pull force; if you need significantly more thrust, an 80 mm bore provides 2268 N. Because this is a 230 mm stroke, it falls under the 300 mm side-load threshold, but you should still ensure adequate guidance for any heavy loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. To replace an ISO 15552 cylinder, match the 63 mm bore, 230 mm stroke, 20 mm adjustment, PT G3/8 port, and the correct mounting hardware. Note that the SAIJ adjuster only sets the travel end and will not hold a load without live air; for true fail-safe holding, consider an SAIL or BSAI series cylinder.
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 SAIJ63AX230-20 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of pull force and 1402 N of push force. At the maximum pressure of 1.0 MPa, it can deliver up to 318 kgf.
The rear mechanical adjuster allows you to shorten the effective stroke from the nominal 230 mm down to 210 mm. This creates a 20 mm adjustable travel window for fine-tuning the end position without needing to replace the cylinder or add external stops.
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