Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75S 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 SAIJ100AX140-75S
The AirTAC SAIJ100X140-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features a SUS420J2 stainless steel rod and a built-in magnet for position sensing. The 75mm adjustment screw allows you to tune the effective travel down from the 140mm nominal stroke, providing a usable 65-140mm positioning window. This fine-tuning happens directly at the rear stopper without requiring external stops.
Because the adjuster acts purely as a mechanical travel stop and works alongside the standard air cushions, it does not lock the load without live air pressure. For position holding, an external rod lock or SAIL cylinder is required. This extruded aluminum profile cylinder includes sensor grooves on both sides and is fully dimensionally interchangeable with ISO 15552 mounting interfaces.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75S |
|---|---|
| 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 SAIJ100AX140-75S
| 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 SAIJ100AX140-75S Is Used
Product Changeovers
Dial in the 65-140mm stroke window during format changes on packaging lines without swapping out the entire cylinder.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to achieve exact clamping or pressing depths.
Variable Assembly Stops
Adjust the rear stopper on the fly for production lines handling multiple part sizes requiring different travel distances.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75S the Right Cylinder?
Choose this 100mm bore when you need high thrust (5497N push at 0.7 MPa) that exceeds the 2182N capacity of a 63mm bore, but do not require the massive 8590N output of a 125mm unit. The adjustable 65-140mm travel window is ideal for product changeovers or commissioning setups where the exact end-of-stroke position varies. It uses a PT tapered G1/2 port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. The -S magnet enables tracking with CMSE reed and DMSE electronic sensors.
Since the 140mm stroke is relatively short, side-loading is less severe than in long-stroke applications, but the robust 25mm rod still handles moderate lateral forces well. Remember that the rear adjuster is a stop, not a brake; if the machine loses air, the cylinder will not hold its load. For pilot-operated check valve or clamp-lock needs, consider the BSAI series instead.
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 SAIJ100AX140-75S FAQ
The rear adjuster acts as a mechanical stop that lets you trim the nominal 140mm stroke back by up to 75mm. This creates a usable travel window of 65-140mm, allowing you to set the exact end position without adding external stops.
At 0.7 MPa operating pressure, it provides 5497N of push force and 3681N of pull force. The maximum thrust at 1.0 MPa is 801 kgf.
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