Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 220mm 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
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S
The AirTAC SAIJ63X220-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 1559N push force at 0.5MPa, utilizing a 20mm diameter carbon steel rod with an M16x1.5 thread. The built-in -S magnet enables direct mounting of CMSE reed and DMSE electronic sensors along the dual-side barrel grooves for precise position detection.
This specific SKU provides a generous 145-220mm usable travel window, allowing you to dial back the nominal 220mm stroke by up to 75mm during machine commissioning. The rod is constructed from SUS420J2 stainless steel (code A) for superior corrosion resistance, and the fluid ports use a PT tapered thread type. The rear adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 220 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 SAIJ63AX220-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×220 | 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 SAIJ63AX220-75S Is Used
Product Changeover
Dial the end-position back by up to 75mm to accommodate different length parts on the same conveyor line without mechanical rebuilds.
Press Fit Tuning
Fine-tune the 145-220mm travel window during commissioning to set the exact bottoming force for a 1559N assembly operation.
End-Stop Calibration
Use the rear adjuster to set precise retract positions on automated machinery, relying on the SUS420J2 rod for durability in varied environments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-75S the Right Cylinder?
Choose this 63mm bore when an application requires roughly 1559N of push force at 0.5MPa, stepping up from a 50mm bore (982N) for heavier pressing or clamping. The 75mm adjustment range is ideal for production lines running multiple product sizes, as it allows rapid end-stop changes without swapping cylinders or adding external stops. For load-holding without continuous air pressure, this plain SAIJ cylinder is insufficient; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
To replace an existing ISO 15552 cylinder, match the 63mm bore, 220mm stroke, 75mm adjustment, PT G3/8 port, and the -S magnet. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Operating speed ranges from 30-800mm/s. Since the 220mm stroke is relatively long, ensure an external guide is used to prevent excessive rod side-loading.
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 SAIJ63AX220-75S FAQ
At 0.5MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At the maximum 1.0MPa pressure, it achieves up to 318 kgf.
The rear adjuster allows you to shorten the effective travel from the 220mm nominal stroke down to 145mm. This stopper only sets the end position and deceleration; it does not lock or hold the load without live air pressure.
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