Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20 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 SAIJ63AX160-20
The AirTAC SAIJ63X160-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 140-160 mm usable travel window. Equipped with a SUS420J2 stainless steel rod and PT tapered ports, it delivers 1559 N of pull force at 0.5 MPa. This bore size utilizes a 20 mm diameter rod with an M16x1.5 thread, providing robust resistance against side loads.
Instead of bolting on external stops during product changeovers, the integrated rear screw lets you fine-tune the retract end-position quickly. This adjuster acts purely as a travel stop and does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE or DMSE switches if a magnet is added later.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20 |
|---|---|
| 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 SAIJ63AX160-20
| 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 SAIJ63AX160-20 Is Used
Machine Changeover
Fine-tune the 140-160 mm retract position during product size changes without adding external mechanical stops.
End-Stop Calibration
Dial in the exact end-of-stroke position during commissioning to perfect pressing or clamping force.
Variable Positioning
Adjust the travel window on the fly for assembly lines handling parts with slightly varying dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-20 the Right Cylinder?
Choose this 63 mm bore when a 50 mm cylinder (offering 825 N pull at 0.5 MPa) lacks thrust, but an 80 mm bore (2268 N pull) is physically oversized. The adjustable 20 mm window is ideal for dialing in exact end-stops at commissioning without swapping the cylinder. To replace an ISO 15552 cylinder, match the 160 mm stroke, PT G3/8 ports, and mounting style.
For load-holding without continuous air pressure, note that the rear adjuster is not a lock; consider an AirTAC SAIL or BSAI cylinder. Since the stroke is 160 mm, the M16x1.5 rod handles moderate side loads well, though long unsupported loads still require external guiding.
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 SAIJ63AX160-20 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force at 0.7 MPa.
The rear adjuster screw allows you to shorten the 160 mm nominal stroke by up to 20 mm, creating a 140-160 mm travel window. It functions as a travel stop and does not lock the load.
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