Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S
The AirTAC SAIJ100X75-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 75 mm stroke that can be dialed back by up to 75 mm, yielding a highly flexible 0-75 mm usable travel window for precise end-position tuning at commissioning. In this magnet-equipped (-S) configuration, it directly supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed within the dual-sided extruded aluminum barrel grooves.
Delivering 3927 N of push force at 0.5 MPa (and up to 7068 N at 0.9 MPa), this 100 mm bore unit utilizes a robust 25 mm carbon steel piston rod with an M20x1.5 thread. The rear adjustment screw acts purely as a mechanical stop to set the retract end position without requiring external stops. It is not a locking device, meaning load-holding without live air requires a SAIL or BSAI variant.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAIJ100X75-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SAIJ100X75-75S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance anywhere from 0 to 75 mm during machine commissioning to accommodate multiple product sizes on a single line without swapping cylinders.
Product Changeover Setup
Quickly readjust the stroke window on the fly when changing over machinery for different material lengths, utilizing the rear screw to set new end positions rapidly.
High-Force Assembly Pressing
Leverage the 3927 N push force at 0.5 MPa for heavy pressing or holding operations, tuning the travel limit to prevent overtravel and ensure consistent assembly depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X75-75S the Right Cylinder?
Select this 100 mm bore cylinder when an application demands high thrust combined with extreme stroke variability, as the 75 mm adjustment range allows the effective travel to be fine-tuned anywhere from 0 to 75 mm during machine setup or product changeover. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas this 100 mm bore provides 3927 N at the same pressure. The PT tapered port threads and M20x1.5 rod thread ensure secure mechanical connections.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 75 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, omitting FB, CA, CB, and CR. Because the nominal stroke is 75 mm, side-load risks are minimal, but always ensure the load is guided to prevent rod binding. For applications requiring true load holding without continuous air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) alternatives, as the rear adjuster here is strictly a travel stop.
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 SAIJ100X75-75S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to trim the effective travel by up to 75 mm from the nominal 75 mm stroke, creating a 0-75 mm usable travel window. It functions as a mechanical stop, not a lock, so it cannot hold a load without live air pressure.
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