Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10 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 SAIJ100BX280-10
The AirTAC SAIJ100X280-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 270 to 280 mm. This built-in adjustability allows for precise end-position tuning during commissioning or product changeovers without the need to physically swap the cylinder or bolt on external stops. It delivers a robust 5497 N of push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. It utilizes PT tapered port threads and omits the -S magnet option. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific SKU lacks the internal magnet, the standardized grooves remain ready for external proximity switches if future upgrades are needed.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10 |
|---|---|
| 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 SAIJ100BX280-10
| 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 SAIJ100BX280-10 Is Used
Machine Setup Tuning
Dial in the exact 270-280 mm retract position during initial machine commissioning to perfect end-of-stroke locations without machining new stopper blocks.
Product Size Changeovers
Quickly adapt automated lines to different product lengths by turning the rear adjuster screw to shift the effective stroke within the 10 mm window.
Heavy-Duty Positioning
Leverage the 5497 N push force at 0.7 MPa to move heavy pallets or fixtures, relying on the robust 25 mm rod and M20x1.5 thread to handle elevated side loads.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-10 the Right Cylinder?
When selecting this actuator, its 100 mm bore provides substantial power; stepping down to an 80 mm bore would reduce the 0.7 MPa push force to 3518 N, while a 125 mm bore increases it to 8590 N. The 10 mm adjustment range is ideal for applications requiring micro-adjustments to the retract position, offering a distinct advantage over a fixed-stroke SAI cylinder when exact positioning needs fine-tuning on the factory floor.
Because the stroke is 280 mm, which exceeds the 300 mm threshold, it is important to note that long unsupported strokes can generate leverage forces; an external guide is recommended to prevent rod binding and premature seal wear. Remember that the rear adjuster functions strictly as a travel stop and cannot hold a load without continuous live air pressure—true load-holding requires a SAIL pneumatic lock or a BSAI clamp-lock cylinder. This unit is dimensionally interchangeable with ISO 15552 cylinders and supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX280-10 FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. At the maximum pressure of 1.0 MPa, the push force reaches 7068 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 280 mm stroke by up to 10 mm, creating a 270-280 mm usable travel window. This adjuster only sets the end position and does not lock the load without live air pressure.
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