Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75 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 SAIJ100AX140-75
The AirTAC SAIJ100X140-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 65 to 140 mm. Delivering 3927 N of push force at 0.5 MPa, it handles substantial pneumatic workloads while allowing precise end-position tuning during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU is configured with an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads (G1/2) and operates without a magnet. The rear adjustment screw acts purely as a mechanical stop to trim the retract stroke; it does not lock the load, meaning live air pressure is required to maintain position.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75 |
|---|---|
| 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 SAIJ100AX140-75
| 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 SAIJ100AX140-75 Is Used
Product Size Changeovers
Quickly reconfigure the 65-140 mm stroke window on packaging lines handling varying carton dimensions without replacing the actuator.
Commissioning Calibration
Fine-tune the retract end-position during machine setup to achieve precise mechanical alignment without fabricating external stopper blocks.
Heavy Forming Operations
Leverage the 3927 N push force at 0.5 MPa for pressing or holding tasks where the exact travel limit must be dialed in on-site.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-75 the Right Cylinder?
Choose this 100 mm bore when an application requires heavy thrust—such as 3927 N push at 0.5 MPa—exceeding the 1559 N push capacity of a 63 mm bore, but where a 125 mm bore (6136 N push) would be excessive. The 75 mm adjustment range is ideal for production lines running multiple product sizes, allowing operators to dial in the exact end-stop without swapping cylinders or adding external stops. For fixed-position tasks without changeover needs, a standard SAI cylinder is a simpler alternative.
Because the nominal stroke is 140 mm, side-load risks are minimal, but the 25 mm rod and M20x1.5 thread provide robust mechanical rigidity for the payload. If true load-holding is required without continuous air pressure, this cylinder will not suffice; you should specify an SAIL (air-released lock) or BSAI (clamp-lock) variant instead. Dimensionally interchangeable per ISO 15552, this model supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options.
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 SAIJ100AX140-75 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it achieves a maximum push force of 801 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 140 mm stroke by up to 75 mm, providing an effective travel range of 65 to 140 mm. It only sets the end-position; it does not lock the load without live air pressure.
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