Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-75S 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 SAIJ100BX140-75S
The AirTAC SAIJ100X140-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers substantial thrust with 7068N push force at 0.9 MPa and provides a usable travel window of 65 to 140 mm. This wide adjustment range allows operators to dial in the exact end position during commissioning without adding external stops.
Equipped with a SUS304 stainless steel rod (code B) and PT tapered ports, this model is built for durability. The integrated magnet (-S) supports position sensing with AirTAC CMSE reed and DMSE electronic switches fitted into the dual-side sensor grooves. The rear adjuster acts purely as a travel stop to tune deceleration, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-75S |
|---|---|
| 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 SAIJ100BX140-75S
| 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 SAIJ100BX140-75S Is Used
Variable End-Position Stops
Ideal for packaging machinery requiring frequent adjustments to the retraction point without changing the physical cylinder mounting.
Product-Size Changeovers
Quickly adapt a production line to different part lengths by dialing the stroke back up to 75 mm during product transitions.
Commissioning Fine-Tuning
Perfect for dialing in exact tooling contact points during machine setup, preventing the need to swap out components.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX140-75S the Right Cylinder?
Choose this 100 mm bore cylinder when an application demands high force (7068N push at 0.9 MPa) alongside significant stroke variability. If your setup requires less force, stepping down to an 80 mm bore yields 4523N push, whereas moving up to a 125 mm bore provides 11045N. The 75 mm adjustment range is ideal for product-size changeovers on a line, offering far more flexibility than a fixed SAI cylinder.
For an exact ISO 15552 replacement match, verify the 100 mm bore, 140 mm nominal stroke, 75 mm adjustment range, PT port thread, and the -S magnet option. Although the 140 mm stroke is relatively short, the robust M20x1.5 rod thread handles high side loads well, though any long-stroke configurations beyond 300 mm would require an external guide.
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 SAIJ100BX140-75S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, providing a usable travel window of 65 to 140 mm. This allows precise end-position tuning at commissioning without swapping the cylinder.
At 0.9 MPa operating pressure, the push force is 7068N and the pull force is 5497N. The maximum force at 1.0 MPa is 801 kgf.
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Standard models usually ship in 3-4 days.
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