Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-20S 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 SAIJ63AX220-20S
The AirTAC SAIJ63X220-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 200 to 220 mm. Delivering 1559 N of push force at 0.5 MPa, it features a SUS420J2 stainless steel rod for enhanced corrosion resistance and an integrated magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This adjustable-stroke design allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops. The rear adjuster functions strictly as a travel stop to set the end position and relies on the built-in air cushion for deceleration; it is not a lock and will not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-20S |
|---|---|
| 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 SAIJ63AX220-20S
| 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 SAIJ63AX220-20S Is Used
Machine Changeover
Dial in the exact retract stop from 200 to 220 mm when switching product sizes on a packaging line, eliminating the need to swap out physical spacers.
End-Position Tuning
Fine-tune the final resting position during commissioning to perfectly align a 1559 N press or clamping operation without replacing the actuator.
Adjustable Ejection
Vary the ejection stroke length on an assembly conveyor to accommodate different part depths while maintaining standard ISO 15552 mounting.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-20S the Right Cylinder?
Choose this 63 mm bore when you need more thrust than the 50 mm class (982 N push at 0.5 MPa) but want to avoid the bulk of an 80 mm body. The adjustable 200-220 mm window is ideal for product changeovers, letting you dial in the exact end-stop during machine setup rather than machining custom spacers. It uses a PT G3/8 port and a 20 mm rod with an M16x1.5 thread, offering robust side-load capacity, though strokes of 220 mm still benefit from an external guide to prevent rod binding.
For ISO 15552 dimensional interchangeability, match the 63 mm bore, 220 mm stroke, 20 mm adjustment range, PT G3/8 port, and -S magnet. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors.
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 SAIJ63AX220-20S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa, it delivers up to 318 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 220 mm stroke by up to 20 mm, creating a usable travel window of 200 to 220 mm. It only sets the end position and does not lock the load without air pressure.
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