Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-50S 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 SAIJ63AX220-50S
The AirTAC SAIJ63X220-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 170 to 220 mm. It delivers 1559 N of pull force at 0.5 MPa and accepts PT tapered port threads (G3/8). The integrated magnet enables position sensing with CMSE reed or DMSE electronic switches.
This variant uses a SUS420J2 stainless steel rod to resist corrosion in humid environments. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning; it does not lock the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-50S |
|---|---|
| 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 SAIJ63AX220-50S
| 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 SAIJ63AX220-50S Is Used
Product Changeover Tuning
Dial back the retract position by up to 50 mm on packaging lines when switching to a shorter container size, eliminating the need to physically swap cylinders.
End-Stop Calibration
Precisely set the 170 to 220 mm travel window during machine commissioning to perfect pressing or clamping depth without adding external mechanical stops.
Corrosive Environment Actuation
Leverage the SUS420J2 stainless steel rod for double-acting actuation tasks in food processing or humid facilities where standard carbon steel rods would pit.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX220-50S the Right Cylinder?
Choose this 63 mm bore when a 50 mm stroke reduction is needed for product changeovers without swapping cylinders. If your application requires less force, stepping down to a 50 mm bore yields 825 N of pull at 0.5 MPa. For heavier loads, an 80 mm bore provides 2268 N. Because the nominal stroke is 220 mm, an external guide is recommended to prevent side-loading. To replace an ISO 15552 cylinder, match the 63 mm bore, 220 mm stroke, 50 mm adjustment, G3/8 PT ports, and the -S magnet.
The rear screw stopper allows variable end-stop tuning, unlike a fixed-stroke SAI cylinder. Remember that the adjuster and air cushions only decelerate the travel end; they do not hold the load. For true fail-safe load holding without live air, use an SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ63AX220-50S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 170 to 220 mm. It allows fine-tuning of the retract end position at commissioning without replacing the cylinder.
At 0.5 MPa operating pressure, this 63 mm bore double-acting cylinder delivers 1559 N of pull force and 1402 N of push force. It operates at speeds between 30 and 800 mm/s.
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