Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100
The AirTAC SAIJ100X140-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the 140 mm nominal travel back by up to 100 mm, yielding a wide 40-140 mm usable window for highly flexible machine setups. It delivers a robust 3927 N push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa, making it suitable for heavy-duty positioning tasks.
This SKU features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and pairs with PT tapered port threads (G1/2). The extruded aluminum barrel includes dual sensor grooves, though position sensing requires adding a magnet separately. The rear adjuster functions strictly as a travel stop to fine-tune end positions during commissioning; it does not lock or hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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 SAIJ100AX140-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100AX140-100 Is Used
Variable End-Stop Machining
Dial in the exact clamping depth across multiple part batches by adjusting the rear stopper from 40 to 140 mm without changing the cylinder mounting.
Product Size Changeover
Rapidly adapt automated assembly lines for different product lengths by fine-tuning the 100 mm adjustment window during machine setup.
Commissioning Calibration
Trim the effective travel precisely during initial machine commissioning to prevent mechanical crashes, using the rear screw as a hard stop.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-100 the Right Cylinder?
Select this 100 mm bore when an application requires substantial thrust (3927 N at 0.5 MPa) alongside extreme stroke flexibility, allowing a single cylinder to serve multiple product sizes within a 40-140 mm travel window. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N push force at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. Choose this adjustable-stroke SAIJ over a fixed SAI when you need on-the-fly end-position tuning without swapping cylinders or adding external stoppers.
Because the 140 mm stroke is relatively short for this bore, side-loading is minimal, but always ensure the M20x1.5 rod thread and 25 mm rod are properly aligned. For load-holding without continuous air pressure, the rear stopper is insufficient; you must integrate an external pilot-operated check valve or select a SAIL or BSAI series cylinder. Ensure your ISO 15552 replacement matches the 100 mm bore, 140 mm stroke, 100 mm adjustment, PT port, and the required mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ100AX140-100 FAQ
The rear adjuster acts as an external stopper that shortens the 140 mm nominal stroke by up to 100 mm, providing a usable travel window of 40 to 140 mm. It allows you to fine-tune the retract end position without swapping the cylinder.
At 0.5 MPa operating pressure, the SAIJ100X140-100 provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
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