Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S
The AirTAC SAIJ100X80-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the nominal 80 mm travel by up to 75 mm to achieve an exact 5-80 mm usable end-position window. It delivers substantial thrust, pushing with 3927 N and pulling with 3681 N at 0.5 MPa operating pressure. The carbon steel piston rod and M20x1.5 rod thread provide robust resistance to side loads, though external guidance remains wise for unsupported tooling.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during commissioning or product changeovers. The rear adjuster acts purely as a mechanical travel stop to fine-tune deceleration, meaning it will not hold a load without live air pressure. For position holding without continuous pressure, consider the SAIL or BSAI variants. This -S model includes a magnet for use with CMSE reed and DMSE electronic sensors fitted into the dual-side sensor grooves.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100X80-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SAIJ100X80-75S Is Used
Variable End-Stop Tuning
Perfect for dialing in the exact 5 to 80 mm travel distance during machine commissioning without physically changing the cylinder or adding external stopper blocks.
Product Size Changeover
Enables rapid adjustment of the stroke window on automated lines when switching between different product sizes, minimizing downtime and mechanical rework.
Deceleration Calibration
Allows operators to mechanically fine-tune the end-of-stroke stopping point to work in harmony with the 36 mm air cushions for smooth payload deceleration.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X80-75S the Right Cylinder?
Choose this 100 mm bore when an 80 mm nominal stroke needs extreme flexibility, as the 75 mm adjustment range allows the effective travel to be precisely set anywhere from 5 to 80 mm. If your application requires less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 80 mm stroke, 75 mm adjustment, PT tapered port threads, and the -S magnet requirement. Because the nominal stroke is under 300 mm, side-load concerns are manageable, but the rigid carbon steel rod still handles moderate offset loads effectively. Remember that the rear adjuster is a stop, not a lock, so loads must be driven by live air or managed by external holding valves.
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 SAIJ100X80-75S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. If operating at 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop that can trim the nominal 80 mm stroke back by up to 75 mm, giving you a usable travel window of 5 to 80 mm. It only sets the end position and does not hold the load without live air pressure.
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