Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75
The AirTAC SAIJ100X135-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 135 mm stroke that can be fine-tuned backward by up to 75 mm, yielding a usable travel window between 60 mm and 135 mm. Equipped with a PT tapered port and a SUS420J2 stainless steel rod, it delivers a robust 7068 N push force at 0.9 MPa, making it suitable for heavy-duty positioning tasks.
This adjustable-stroke design allows precise end-position tuning during commissioning without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop for deceleration alongside the standard air cushions, meaning it will not hold a load without live air pressure. For load-holding requirements, an external rod lock or a related SAIL pneumatic lock cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 135 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 SAIJ100AX135-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×135 | 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 SAIJ100AX135-75 Is Used
Machine Changeover
Dial in the 60-135 mm travel window during product size transitions to set new retract endpoints without physically swapping the actuator.
Heavy Forming Stops
Leverage the 7068 N push force at 0.9 MPa to press components, using the rear stopper to precisely limit the retract position.
Assembly Line Setup
Fine-tune the end-of-stroke position during initial commissioning to perfect part ejection distances on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-75 the Right Cylinder?
Choose this 100 mm bore cylinder when an application demands high thrust, such as the 7068 N push force at 0.9 MPa, combined with variable end-stop positioning between 60 and 135 mm. If the 135 mm nominal stroke is excessive for a compact machine layout, the 75 mm adjustment screw provides significant trimming capacity. Conversely, if a shorter fixed stroke is acceptable and higher force is unnecessary, stepping down to a 63 mm bore provides 2805 N push force at 0.9 MPa.
When replacing an ISO 15552 cylinder, verify the 100 mm bore, 135 mm stroke, 75 mm adjustment range, PT port thread, and mounting style. SAIJ supports a specific mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR options. Since this model lacks the -S magnet suffix, it cannot host CMSE or DMSE sensors for position detection. Additionally, the 25 mm rod diameter handles side loads well, though any stroke approaching 300 mm or beyond requires an external guide to prevent rod deflection.
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 SAIJ100AX135-75 FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates a push force of 7068 N and a pull force of 3681 N. The maximum push force reaches 801 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 135 mm nominal stroke down to 60 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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