Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 280mm 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
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S
The AirTAC SAIJ100X280-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 280 mm nominal stroke that can be fine-tuned down by up to 10 mm, yielding a precise 270-280 mm usable travel window for commissioning without swapping hardware. Built with a SUS304 stainless steel rod and a PT tapered port, it delivers a robust 7068N push force at 0.9 MPa. The extruded aluminum barrel features sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic switches.
This model utilizes adjustable pneumatic cushioning at both ends to decelerate the load smoothly. The rear adjuster acts purely as a travel stop to set the end position, meaning it will not hold the load without continuous air pressure. For load-holding requirements without live pressure, an external rod lock or the AirTAC SAIL/BSAI locking cylinder series is recommended. The mounting footprint supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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 SAIJ100BX280-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×280 | 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 SAIJ100BX280-10S Is Used
Machine Setup & Changeover
Dial in the exact 270-280 mm end position during product family changeovers without replacing the entire cylinder or adding external spacers.
Variable End Stops
Use the 10 mm rear adjustment screw to fine-tune the retract position for assemblies that require precise alignment at commissioning.
High-Force Positioning
Leverage the 7068N push force at 0.9 MPa to move heavy pallets or fixtures into place, relying on the stop to set the final location.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10S the Right Cylinder?
Choose this 100 mm bore if your application requires high thrust, specifically 7068N of push force at 0.9 MPa. If your force requirements are lower, stepping down to an 80 mm bore yields 4523N, while a 125 mm bore provides 11045N. The adjustable stroke is ideal for product changeovers on a line where exact end positions vary slightly by 10 mm, eliminating the need to bolt on external stops or buy a different fixed-stroke SAI cylinder. Because this is a 280 mm stroke, ensure external guidance is used to handle side loads, as the 25 mm rod diameter supports load but does not eliminate deflection on long travels. When replacing an ISO 15552 cylinder, match the 100 mm bore, 280 mm stroke, 10 mm adjustment, PT port, and -S magnet.
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 SAIJ100BX280-10S FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates 7068N of push force and 5497N of pull force. At 0.5 MPa, it provides 3927N push and 3681N pull.
The rear adjusting screw acts as a mechanical stop that shortens the effective travel. For this SAIJ100X280-10-S model, the 280 mm stroke can be trimmed back by up to 10 mm, creating a 270-280 mm usable travel window. Note that this stop does not lock the load without live air pressure.
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