
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX280-75S 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.
The AirTAC SAIJ100X280-75-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows operators to dial in the retract end position during commissioning or product changeovers without swapping out the entire unit.
This SKU includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance. The extruded aluminum barrel incorporates sensor grooves on both sides, and the mounting interface strictly utilizes the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX280-75S |
|---|---|
| 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.
| 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.
| 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.
Ideal for assembly lines where the retract distance must be frequently reconfigured for different product sizes, utilizing the 75mm adjustment range to modify the 280mm stroke on the fly.
Allows engineers to precisely dial in the 205-280mm travel window during machine setup without machining external stopper blocks or changing the cylinder.
The adjustable rear stopper acts solely as a travel end deceleration device, not a lock, so the SAIJ cannot hold a load without live air. For load-holding requirements, consider an external rod lock or the AirTAC SAIL series.
Because the 280mm stroke exceeds 300mm when combined with side loads, ensure an external guide is used to prevent rod binding. To match this ISO 15552 interchangeable cylinder exactly, specify: 100mm bore, 280mm stroke, 75mm adjustment, PT tapered port threads, and the -S magnet option.
Quick checklist
At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the effective travel by up to 75mm. This creates a usable stroke window of 205-280mm, enabling fine-tuning of the end position without replacing the cylinder.
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