
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX270-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 270mm 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 SAIJ32X270-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 240-270mm, letting you dial back the nominal 270mm stroke by up to 30mm during machine commissioning.
This variant uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. Because this is a 270mm stroke, the 12mm diameter piston rod should be guided externally on long reaches to prevent excessive side-loading and premature seal wear.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX270-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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. |
| ×270 | 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 240-270mm retract position during initial machine build without machining external spacers or changing the cylinder.
Quickly adapt the end-stop for varying product lengths on a packaging line by turning the rear adjustment screw.
Choose this 32mm bore adjustable-stroke actuator when your application requires fine-tuning of the retract end-position without swapping cylinders or adding external stops. Conversely, if you require higher clamping or pressing forces, the 50mm bore provides 982N at 0.5MPa.
When specifying a replacement, match the 32mm bore, 270mm stroke, 30mm adjustment range, PT tapered port threads, and the SUS420J2 rod material. Note that the rear adjuster acts only as a mechanical stop and does not hold the load without live air pressure; for true load-holding without supply pressure, consider an AirTAC SAIL or BSAI series cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
Quick checklist
At 0.7MPa, the push force increases to 563N.
The rear adjuster screw allows you to shorten the effective stroke from 270mm down to a minimum of 240mm. It acts as a mechanical stop to fine-tune the end position, but it does not lock or hold the load without continuous air pressure.
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