
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 20mm 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 SAIJ32X20-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 0-20 mm. It delivers 402 N of push force at 0.5 MPa, making it well-suited for compact actuation tasks. The integrated -S magnet supports AirTAC CMSE reed and DMSE electronic sensors for precise position detection.
This model features a SUS420J2 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads (G1/8). The rear adjuster acts purely as a mechanical stop for end-position tuning; it does not lock or hold the load without continuous air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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. |
| ×20 | 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 clamping end-stop during machine changeovers without physically swapping the actuator.
Leverage the -S magnet with DMSE solid-state sensors to trigger commands at custom retracted positions.
Ideal for compact testing rigs where the SUS420J2 rod resists minor splashes and the stroke needs micro-adjustments.
Choose this 32 mm bore when you need to trim a 20 mm nominal stroke down to a near-zero position during machine commissioning, avoiding the need to swap cylinders or add external stops. If your application requires higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if lower force is acceptable, this bore is the optimal minimum.
When matching an ISO 15552 replacement, verify the 20 mm stroke, 20 mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR variants found in other series.
Quick checklist
The rear adjuster screw lets you mechanically shorten the 20 mm nominal stroke by up to 20 mm, providing a usable travel window of 0-20 mm. It functions as a travel stop for fine-tuning and does not lock the load without live air pressure.
At a 0.5 MPa operating pressure, 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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