
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX250-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ32X250-100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 150-250 mm usable travel window by allowing you to dial back the 250 mm nominal stroke by up to 100 mm.
This adjustable-stroke design lets you fine-tune end positions at commissioning without swapping out the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches, and the rear adjuster functions purely as a travel stop, not a load lock.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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.
Dial in the exact retract distance from 150 to 250 mm during machine setup to accommodate different material lengths without changing hardware.
Adjust the stroke on the fly when switching between package sizes on a packaging line, ensuring precise diverting without mechanical rebuilds.
Use the rear screw to set precise clamping travel limits on delicate workpieces, preventing over-travel while maintaining 345 N of pull force.
If you need more power, stepping up to the 40 mm bore yields 628 N. The 100 mm adjustment range is excellent for product changeovers on a line, letting you shift the end-stop position dynamically. Because the stroke is 250 mm, ensure external guiding to prevent side-load wear on the 12 mm rod.
For ISO 15552 replacement matching, specify bore 32, stroke 250, 100 mm adjustment, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and a SUS304 (B) rod. If the machine requires true load-holding without live air pressure, use a SAIL or BSAI cylinder instead, as the SAIJ rear adjuster only halts travel.
Quick checklist
The rear adjuster acts as an external stopper that lets you shorten the effective travel from 250 mm down to 150 mm. This 100 mm adjustment window is set at commissioning without replacing the cylinder.
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