Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-75S 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 SAIJ100AX145-75S
The AirTAC SAIJ100X145-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 70 to 145 mm, allowing you to dial back the stroke by up to 75 mm during commissioning. It delivers a robust push force of 3927 N at 0.5 MPa and utilizes a G1/2 port. This configuration includes a SUS420J2 stainless steel rod (option A) for enhanced durability against lateral stress.
Equipped with a magnet for position sensing, it integrates seamlessly with AirTAC CMSE reed and DMSE solid-state switches fitted into the dual-side sensor grooves. The rear stopper mechanism serves strictly to decelerate and set the travel end; it does not hold a load without live air pressure. For secure load holding without continuous pneumatic supply, consider integrating an external rod lock or exploring the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-75S |
|---|---|
| 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 SAIJ100AX145-75S
| 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 SAIJ100AX145-75S Is Used
Machine Setup Changeover
Fine-tune the 70 to 145 mm travel window during line changeovers to accommodate varying product lengths without physically replacing the cylinder.
Variable End-Stop Tuning
Leverage the 75 mm rear adjuster to precisely set the retract end-position during commissioning, ensuring perfect alignment of heavy 100 mm bore assemblies.
Heavy-Duty Positioning
Utilize the 3927 N push force to move substantial loads while relying on the SUS420J2 stainless rod to withstand demanding industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX145-75S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 2513 N push force at 0.5 MPa) is insufficient for your application, but you want to avoid stepping up to a 125 mm cylinder. The extensive 75 mm adjustment range is ideal for machinery requiring frequent product-size changeovers, replacing the need to swap out fixed-stroke SAI cylinders or bolt on external stops. Ensure your setup matches the ISO 15552 interface by specifying the PT tapered port threads, the desired mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and the -S magnet requirement for sensor compatibility.
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 SAIJ100AX145-75S FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum pressure of 0.9 MPa, the push force increases to 7068 N.
The rear adjuster allows you to shorten the 145 mm nominal stroke by up to 75 mm, creating a usable travel window of 70 to 145 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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