Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100S 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 SAIJ100BX280-100S
The AirTAC SAIJ100X280-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5 MPa. Its 100mm adjustment screw provides a usable travel window of 180-280mm, enabling precise end-position tuning during commissioning without swapping hardware. The SUS304 stainless steel rod offers superior corrosion resistance for harsh environments.
This model includes a magnet for CMSE reed and DMSE electronic sensors, fitting neatly into the dual-side sensor grooves on the extruded aluminum barrel. Operating at speeds of 30-800mm/s, it utilizes a G1/2 port and variable air cushions at both ends to manage kinetic energy. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100S |
|---|---|
| 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 SAIJ100BX280-100S
| 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 SAIJ100BX280-100S Is Used
Variable Product Changeover
Dial in the 180-280mm travel window rapidly when switching a packaging line between different carton depths, using the rear screw to set the new end stop without changing the cylinder.
Fixture Positioning
Leverage the 3927N push force to clamp heavy metal parts, making micro-adjustments to the final clamping position during machine setup to achieve perfect alignment.
Diversion Gate Control
Control a conveyor sorting gate where the actuation distance needs frequent adjustment, relying on the SUS304 rod to withstand washdown environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100S the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder (2513N push at 0.5 MPa) lacks the thrust for moving heavier fixtures, but a 125mm bore is physically oversized. The 100mm adjustment range is perfect for machines processing varying product sizes, allowing operators to dial in the exact stroke limit on the fly instead of adding external mechanical stops. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
When replacing an ISO 15552 cylinder, match the 100mm bore, 280mm nominal stroke, G1/2 PT port, and the specific 100mm adjustment code. Because the 280mm stroke is substantial, the 25mm rod diameter handles significant side loads, but an external guide rail is still recommended for heavy off-center loads to prevent premature seal wear. Mounting options are limited to 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 SAIJ100BX280-100S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the effective stroke by up to 100mm, creating a usable travel window of 180-280mm from the 280mm nominal stroke. It acts as a physical stop for end-position tuning and is not a locking mechanism.
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