
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 450mm 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 SAIJ32X450-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the 450 mm nominal stroke by up to 40 mm, creating a precise 410-450 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This variant uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance over standard carbon steel. The M10x1.25 rod thread and PT tapered port threads are standard for the 32 mm bore size. The rear adjuster acts purely as a travel stop to fine-tune end positions at commissioning without adding external stops; it is not a load-holding lock.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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. |
| ×450 | 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.
Fine-tune the 410-450 mm travel window during product line changeovers without physically replacing the cylinder or bolting on external mechanical stops.
Dial in the exact retract end-position during commissioning to accommodate slight mechanical variations or sensor drift on automated assembly stations.
Utilize the 402 N push force at 0.5 MPa for moving small components or deflecting lightweight gates on conveyor sorting lines.
Choose this 32 mm bore cylinder when an application requires a 410-450 mm stroke range and moderate thrust (345 N pull at 0.5 MPa). If your process demands greater force, stepping up to the 40 mm bore yields 528 N of pull force at the same pressure. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. Because the 450 mm stroke is relatively long for this small 12 mm rod diameter, an external guide is recommended to prevent excessive side-loading and rod deflection.
This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options. It operates at speeds of 30-800 mm/s and uses PT port threads. For applications requiring the cylinder to hold a load without live air pressure, a plain SAIJ is insufficient—consider an AirTAC SAIL or BSAI cylinder with a locking mechanism.
Quick checklist
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum rated pressure of 1.0 MPa, it can deliver up to 82 kgf.
The rear adjusting screw acts as a mechanical stop that shortens the effective stroke by up to 40 mm, providing a usable travel window of 410 to 450 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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