Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 145mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke145 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S
The AirTAC SAIJ100X145-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 45-145 mm, letting you dial back the 145 mm nominal stroke by up to 100 mm during commissioning. Delivering 3927 N of push force at 0.5 MPa, it handles substantial loads while maintaining a standard ISO 15552 mounting footprint.
This variant includes a SUS420J2 stainless steel rod (option A) for corrosion resistance and ships with a magnet (-S) for position sensing with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel integrates sensor grooves on both sides, and the G1/2 port handles the required airflow for the 30-800 mm/s speed range.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 145 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×145 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX145-100S Is Used
Variable End-Stop Setup
Dial in the 45-145 mm travel window during machine commissioning to accommodate multiple product sizes without physically replacing the cylinder.
Changeover Positioning
Quickly adjust the retract end-position for new production runs, using the rear stopper to fine-tune the stroke rather than reprogramming fixed stops.
Heavy-Duty Forming
Leverage the 3927 N push force at 0.5 MPa for pressing or forming tasks that require precise, adjustable travel limits on the production line.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-100S the Right Cylinder?
Choose this 100 mm bore when you need 3927 N of thrust at 0.5 MPa and a highly variable end-stop. If your process requires less force, stepping down to the 80 mm bore yields 2513 N at 0.5 MPa. The SAIJ100X145-100-S is ideal for product changeovers where the stroke must be fine-tuned on the machine without swapping cylinders or adding external stops. Remember, the rear adjuster acts as a travel stop, not a lock; it cannot hold a load without live air. For fail-safe load holding, consider the SAIL or BSAI series. To match an ISO 15552 replacement, verify bore, stroke, 100 mm adjustment, PT port, and the -S magnet.
Because the 145 mm stroke is under the 300 mm side-load threshold, the 25 mm rod diameter and M20x1.5 rod thread provide excellent rigidity for standard loads. However, any heavy offset payload still requires an external guide. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
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 SAIJ100 Adjustable Cylinder SAIJ100AX145-100S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 100 mm. This provides a usable travel window of 45-145 mm, enabling fine end-position tuning at commissioning without changing the cylinder.
At 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. It can deliver up to 7068 N of push force at 0.9 MPa.
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