Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 160mm 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
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S
The AirTAC SAIJ63X160-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 140 to 160 mm, allowing you to dial back the nominal 160 mm stroke by up to 20 mm during commissioning. This bore size delivers 1559 N of pull force at 0.5 MPa and 2182 N at 0.7 MPa, making it well-suited for mid-range actuation tasks.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance compared to standard carbon steel. The -S suffix indicates an integrated magnet for position sensing, compatible with AirTAC CMSE reed and DMSE solid-state switches mounted in the dual-side sensor grooves. Fluid connections use PT tapered threads, and the extruded aluminum barrel design strictly avoids tie-rod construction.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 160 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 SAIJ63AX160-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SAIJ63AX160-20S Is Used
Machine Changeover
Dial in the 140-160 mm stroke window during product size transitions without swapping the cylinder or bolting on external physical stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning to absorb mechanical tolerances, using the rear screw to set the exact travel limit.
Variable End Stops
Ideal for assembly lines needing flexible retract distances, allowing operators to adjust the stroke within the 20 mm window on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20S the Right Cylinder?
Select this 63 mm bore cylinder when your application requires around 1559 N pull force at 0.5 MPa; step down to a 50 mm bore (825 N pull) for lighter loads, or up to an 80 mm bore (2268 N pull) for heavier duty. Choose this adjustable-stroke SAIJ model over a fixed SAI when you need variable end-stops for product changeovers or fine-tuning without adding external stops. The rear adjuster acts purely as a travel stop to set deceleration endpoints—it does not hold the load without live air. For fail-safe load holding, use an external rod lock or pilot-operated check valve, or select the SAIL or BSAI series.
As a dimensionally interchangeable ISO 15552 cylinder, it mounts via Basic, FA, LB, TC, FTC, TCM1, or TCM2 accessories. The 160 mm stroke is well below the 1500 mm maximum, so side-loading is minimal, though long unsupported strokes still require an external guide. The 20 mm stroke adjustment window is ideal for setups requiring precise end-position tuning.
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 SAIJ63AX160-20S FAQ
The rear adjuster screw lets you shorten the nominal 160 mm stroke by up to 20 mm, providing an effective travel window of 140 to 160 mm. It functions as a mechanical stop to tune the end position and does not lock the load without continuous air pressure.
At 0.5 MPa it provides 1559 N pull and 1402 N push, reaching 2182 N push at 0.7 MPa. The -S magnet works with AirTAC CMSE reed switches and DMSE solid-state sensors in the standard sensor grooves.
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