
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 280mm 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 SAIJ32X280-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 280mm stroke that can be dialed back by up to 100mm, giving you a flexible 180-280mm usable travel window for precise end-position tuning at commissioning. In the 32mm bore class, it delivers 402N of push force at 0.5MPa and uses a PT tapered G1/8 port.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a built-in magnet for position sensing with CMSE reed and DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop for deceleration and is not a load-holding lock, meaning live air pressure is required to maintain position.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX280-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 280 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. |
| ×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.
Dial in the exact 180-280mm retract position during product family switchovers without adding external mechanical stops.
Fine-tune the final end-position at commissioning to compensate for mechanical tolerance stack-up in your fixture.
Adjust the ejection travel distance on the fly to safely push different sized parts from a machining center.
Choose this 32mm bore adjustable cylinder when your setup requires variable end-stops or frequent product-size changeovers without swapping the entire unit. If your application needs less force, stepping down is not an option in this series, but if you require higher thrust, stepping up to a 40mm bore yields 628N at 0.5MPa. Unlike a fixed-stroke SAI cylinder, this SAIJ model allows you to fine-tune the retract position on the fly. For true load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the adjuster. This unit uses PT ports and supports SAIJ mounting options: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because this cylinder features a 280mm stroke, the 12mm diameter rod and M10x1.25 thread have limited side-load capacity over that extended length. For optimal seal life and smooth operation, always pair this long-stroke actuator with an external guide to prevent rod binding.
Quick checklist
At 0.5MPa, this 32mm bore cylinder provides 402N of push force and 345N of pull force. It can reach up to 724N of push force at 0.9MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 280mm down to 180mm, creating a 180-280mm usable window. It functions as a mechanical stop and does not lock the load without live air.
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