Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100 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 SAIJ100BX280-100
The AirTAC SAIJ100X280-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a generous 180-280mm usable travel window, allowing you to dial back the nominal 280mm stroke by up to 100mm during commissioning. Delivering 7068N of push force at 0.9MPa, it handles heavy loads without requiring cylinder swaps or external stops.
This model features a SUS304 stainless steel rod (option B) for superior corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts purely as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100 |
|---|---|
| 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 SAIJ100BX280-100
| 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 SAIJ100BX280-100 Is Used
Machine Changeover
Fine-tune the 180-280mm travel window during product size transitions without swapping out the entire cylinder or adding external mechanical stops.
Heavy Assembly Pushing
Leverage 7068N of push force at 0.9MPa to shift heavy jigs into exact position, using the rear screw to dial in the final end-stop.
Corrosive Environment Actuation
Rely on the SUS304 stainless steel rod and adjustable end-stop for reliable double-acting motion in washdown or corrosive factory settings.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100 the Right Cylinder?
Choose this 100mm bore when the 50mm class (1374N push at 0.5MPa) is insufficient for moving heavy assemblies. An adjustable stroke is ideal for product changeovers on a line, letting you fine-tune the end position rapidly instead of adding external stops. To replace an ISO 15552 cylinder, match the 100mm bore, 280mm stroke, 100mm adjustment, PT ports, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 280mm stroke is substantial, ensure external guidance to prevent side-loading damage to the SUS304 rod. For position holding without live air, select the SAIL or BSAI series instead.
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 SAIJ100BX280-100 FAQ
At an operating pressure of 0.9MPa, this 100mm bore cylinder provides 7068N of push force and 5497N of pull force.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel down from 280mm to a minimum of 180mm. It sets the deceleration end-point but does not lock the load without live air.
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