Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX280-100 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke280 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100
The AirTAC SAIJ100X280-100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 280 mm stroke that can be fine-tuned backward by up to 100 mm, yielding a highly flexible 180-280 mm usable travel window.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered port threads, this extruded aluminum cylinder handles demanding environments. The integrated variable air cushions at both ends decelerate the load, while the rear screw acts purely as a travel stop and does not hold the load without live air pressure. For position holding without air, a SAIL or BSAI series cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100 |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100
| 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 SAIJ100AX280-100 Is Used
Variable End-Stop Positioning
Dial in the exact 180-280 mm travel distance during commissioning to accommodate different material thicknesses without physically replacing the cylinder.
Machining Clamp Setup
Fine-tune the clamping reach on large fixtures, using the 100 mm adjustment window to find the optimal holding position before applying live air pressure.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-100 the Right Cylinder?
If the 180-280 mm adjustable travel window exceeds your spatial constraints or force requirements, stepping down to an 80 mm bore provides 2513 N at 0.5 MPa. Because the stroke is 280 mm, the 25 mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is recommended to prevent excessive side loading on long extensions.
This adjustable-stroke design allows you to dial in the exact end-stop without swapping the cylinder or adding external mechanical stops. To achieve a true ISO 15552 replacement match, verify the 100 mm bore, 280 mm stroke, 100 mm adjustment range, PT port threads, and the required mounting set (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this standard configuration omits the -S magnet; if electronic or reed position sensing is needed, CMSE or DMSE sensors require a magnet-equipped variant.
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 SAIJ100AX280-100 FAQ
At its maximum 1.0 MPa pressure, it delivers up to 801 kgf of push force.
The rear adjusting screw acts as a mechanical stop that allows you to shorten the effective stroke from the nominal 280 mm down to as little as 180 mm. This creates a 180-280 mm travel window for fine-tuning end positions at commissioning, though it does not lock the load without continuous air pressure.
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