Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S
The AirTAC SAIJ63X105-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 105 mm stroke that can be dialed back by up to 75 mm, yielding a wide usable travel window of 30 to 105 mm. This allows precise end-position tuning at commissioning without swapping the barrel or adding external stops. In the 63 mm bore class, it generates 1559 N of push force and 1402 N of pull force at 0.5 MPa.
This SKU ships with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a piston magnet (-S) for position feedback. It is fully compatible with AirTAC CMSE reed and DMSE electronic sensors mounted into the extruded aluminum barrel grooves. The rear adjuster acts purely as a mechanical stop to set the travel end; it does not lock or hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 105 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 SAIJ63AX105-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×105 | 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 SAIJ63AX105-75S Is Used
Machine Setup & Changeover
Dial in the exact retract position during commissioning or product size changeovers without machining new stopper blocks.
Variable End-Stop Positioning
Adjust the usable stroke anywhere from 30 to 105 mm to accommodate multiple part lengths on a single fixture.
Sensor-Ready Actuation
Leverage the built-in magnet and barrel sensor grooves to confirm end-of-travel positions via CMSE or DMSE switches.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX105-75S the Right Cylinder?
Choose this 63 mm bore cylinder when an application requires 1559 N of thrust at 0.5 MPa but demands a highly variable end-stop. The 75 mm adjustment range is ideal for product changeovers on a line, letting operators reset the travel window anywhere between 30 and 105 mm on the fly. If your force requirements are lower, stepping down to a 50 mm bore yields 982 N of push force, while moving up to an 80 mm bore provides 2513 N. Because the rod thread is M16x1.5, it handles moderate side loads well, though any stroke over 300 mm would require an external guide.
When specifying an ISO 15552 replacement, match the 63 mm bore, 105 mm nominal stroke, PT tapered port threads, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles. For applications requiring the load to be held without live air, select the SAIL or BSAI series instead, as the SAIJ rear adjuster only decelerates the travel end.
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 SAIJ63AX105-75S 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 0.7 MPa, the push force increases to 2182 N.
A rear adjusting screw acts as a mechanical stop, allowing you to shorten the 105 mm nominal stroke by up to 75 mm. This creates a usable travel window of 30 to 105 mm, which can be fine-tuned during setup.
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