
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 145mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ32X145-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end-of-travel position without adding external stops. With a nominal 145mm stroke and a 20mm adjustment range, it provides a usable travel window of 125-145mm to accommodate product changeovers or precise commissioning.
This variant features a SUS420J2 stainless steel piston rod (material code A) for improved corrosion resistance compared to standard carbon steel. The 12mm rod diameter and M10x1.25 rod thread handle moderate side loads, though long unsupported strokes still require an external guide. It uses PT tapered port threads and operates at speeds between 30-800mm/s, relying on variable air cushions at both ends to decelerate the load.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 145 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
| ×145 | 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 end position within the 125-145mm window when switching between product sizes on a packaging line, avoiding the need to physically swap cylinders or add external shims.
Fine-tune the retract stroke during initial commissioning to perfectly seat a part or trigger a sensor without mechanical modifications to the fixture.
If your process needs less force, stepping down is not an option in the SAIJ series as 32mm is the smallest available bore.
The adjustable stroke is ideal for machine setups where the exact end position varies slightly between fixtures, replacing the need to swap out a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ32X145-20 will not hold its load without live air pressure. For load-holding requirements, explore the SAIL or BSAI series instead. This model is dimensionally interchangeable with ISO 15552 cylinders and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Quick checklist
If you increase the pressure to 0.7MPa, the push force rises to 563N.
The SAIJ32X145-20 has a nominal stroke of 145mm with a 20mm adjustment range, creating a usable travel window of 125-145mm. You turn the rear adjusting screw to set the retract end position precisely, but note this acts as a stop and does not lock the load without live air pressure.
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