Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-30 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 SAIJ100BX280-30
The AirTAC SAIJ100X280-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 280 mm stroke that can be fine-tuned down by up to 30 mm, giving operators a precise 250-280 mm usable travel window during commissioning. Delivering substantial thrust, it generates 7068 N of push force at 0.9 MPa and utilizes a G1/2 port for high airflow.
This specific configuration features a SUS304 stainless steel rod (material code B) for superior corrosion resistance in harsh environments. As an extruded aluminum profile cylinder, it includes sensor grooves on both sides, though this unit is supplied without a magnet. The rear stopper functions strictly as a travel end-position setter, not a load lock, meaning live air pressure is required to maintain force against the stop.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-30 |
|---|---|
| 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 SAIJ100BX280-30
| 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 SAIJ100BX280-30 Is Used
Product Size Changeovers
Quickly dial in the 250-280 mm stroke window when switching between product sizes on a packaging line, avoiding the need to physically swap out cylinders.
End-Stop Calibration
Fine-tune the final retracted position during machine commissioning to achieve precise mechanical alignment without machining external stop blocks.
Corrosive Press Operations
Leverage the 7068 N push force and SUS304 stainless steel rod for pressing or forming tasks in washdown or chemically exposed industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-30 the Right Cylinder?
Choose this 100 mm bore when an 80 mm cylinder's 4523 N push force at 0.9 MPa is insufficient, or step down if the 63 mm bore's 2805 N is adequate for lighter loads. The adjustable 250-280 mm window is ideal for product changeovers on a line, allowing you to reposition the end stop without physically swapping the cylinder or adding external shims. For fixed-position tasks without variation, a standard SAI cylinder is a simpler alternative.
To match this exact configuration, specify a 100 mm bore, 280 mm stroke, 30 mm adjustment, PT tapered port thread, SUS304 rod, and no magnet. Because the 280 mm stroke is relatively long, ensure adequate external guiding to prevent excessive side-loading on the SUS304 rod. Note that the rear adjuster and air cushions only decelerate the load; they do not hold position without air pressure. For dead-load holding, consider an AirTAC SAIL or BSAI cylinder. Mounting options include 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 SAIJ100BX280-30 FAQ
At 0.9 MPa operating pressure, this 100 mm bore cylinder provides a push force of 7068 N and a pull force of 3681 N. At 0.5 MPa, the push force is 3927 N.
The rear adjuster acts as a mechanical stopper, allowing you to shorten the effective travel from the 280 mm nominal stroke down to 250 mm. It sets the end position but does not lock the load without continuous air pressure.
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