
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX750-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 750mm 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 SAIJ32X750-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 730-750 mm usable travel window, enabling precise end-position tuning during commissioning without adding external stops. Built with a SUS304 stainless steel rod and a PT tapered port, it delivers 724N of push force at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches.
This model utilizes a 12mm piston rod and M10x1.25 rod thread. While the robust rod handles standard loads well, an unsupported 750 mm stroke still requires an external guide to prevent side-load damage. The rear adjuster acts strictly as a mechanical stop to set the travel end and does not hold the load without live air pressure.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX750-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 750 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. |
| ×750 | 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 730-750mm retract position during commissioning without swapping cylinders or adding external mechanical stops.
Quickly adjust the travel end to accommodate different material lengths on a production line, saving setup time.
Leverage 724N of push force at 0.9 MPa for precise pressing and light assembly tasks requiring exact positioning.
Choose this 32mm bore when your application requires 724N of push force at 0.9 MPa; stepping up to a 40mm bore raises that force to 1130N. An adjustable stroke is ideal for machine setups needing variable end-stops or product-size changeovers, whereas a fixed SAI cylinder locks you into one exact travel length. When replacing an ISO 15552 unit, match the 32mm bore, 750mm stroke, 20mm adjustment, PT port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting options. Add the -S magnet for CMSE or DMSE sensor compatibility.
For any stroke length of 300mm or more, side-load risks increase significantly. Even with the 12mm rod, you must use an external guide to support the load. Remember that the rear adjuster and air cushions only decelerate the travel end; they do not function as a lock. For true load-holding without live pressure, consider an external rod lock, a pilot-operated check valve, or the AirTAC SAIL and BSAI cylinder series.
Quick checklist
The rear adjuster screw lets you trim the effective stroke by up to 20 mm, creating a 730-750 mm usable travel window. It acts as a mechanical stop to fine-tune the end position and is not a lock.
At 0.9 MPa operating pressure, the SAIJ32X750-20-S provides 724N of push force and 345N of pull force at 0.5 MPa.
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