
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 55mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ32X55-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 25 to 55 mm for precise end-position tuning. Fitted with a SUS304 stainless steel rod and a -S magnet, it delivers 402 N of push force at 0.5 MPa. The PT tapered port threads ensure a tight, leak-free pneumatic connection.
Because the adjuster acts purely as a mechanical stop on the retract end, it cannot hold a load without continuous live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE reed or DMSE electronic switches to track piston position accurately.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX55-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
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. |
| ×55 | 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 25-55 mm travel window rapidly during format changes on packaging lines without replacing the actuator.
Fine-tune the retract position at commissioning using the rear screw to perfect the picking motion of small parts.
Leverage the -S magnet with DMSE electronic sensors to confirm the adjusted end position in automated test fixtures.
Choose this 32 mm bore when an application requires 402 N push force at 0.5 MPa but demands variable end-stops during commissioning. If your setup needs less force, stepping down is not an option in the standard SAIJ range, but stepping up to a 40 mm bore yields 628 N. The rear screw allows you to dial in the exact 25-55 mm travel without swapping cylinders or adding external stops, unlike a fixed-stroke SAI. For load-holding without live pressure, consider an external rod lock or the SAIL series.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 55 mm nominal stroke, 30 mm adjustment, PT port thread, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Quick checklist
The rear adjuster acts as a mechanical stop, letting you trim the nominal 55 mm stroke back by up to 30 mm, creating a 25-55 mm travel window. It sets the end position but does not lock the load without live air.
At 0.5 MPa, it provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
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