
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 145mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
Its 145 mm nominal stroke incorporates a 20 mm adjustment mechanism, providing a precise 125-145 mm usable travel window for fine-tuning end positions without adding external stops. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This heavy-duty unit utilizes a SUS304 stainless steel rod (option B) for superior corrosion resistance and carries a robust 40 mm rod diameter with an M36x2 thread, ensuring excellent side-load capacity. The rear stopper screw acts purely as a travel end-setter to dial in the retract position during commissioning; it is not a locking mechanism and will not hold a load without live air pressure.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 145 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 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. |
|---|---|
| 160 | 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 125-145 mm travel window during machine setup to clamp various part thicknesses without physically swapping out the actuator.
Quickly adjust the retract end-position by up to 20 mm on packaging lines when switching between different box or pallet dimensions.
Select this 160 mm bore actuator when an application requires substantial force—stepping down to a 125 mm bore yields 6136N at 0.5 MPa, whereas this SAIJ160X145-20 provides 10053N, making it ideal for heavy pressing or large-format clamping. The 20 mm adjustable window is chosen over a fixed-stroke SAI cylinder when machinery requires variable end-stops to accommodate multiple product sizes on a single line. For load-holding without continuous air supply, pair this cylinder with an external pilot-operated check valve or select the AirTAC SAIL or BSAI series instead.
To match this ISO 15552 cylinder for a direct replacement, verify the 160 mm bore, 145 mm stroke, 20 mm adjustment code, PT tapered port threads, and the absence of a magnet (-S). Since the 145 mm stroke is under the 300 mm side-load threshold, standard mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2) are fully sufficient without needing external guides.
Quick checklist
At the maximum 1.0 MPa pressure, the push force increases to 15708N.
The rear adjuster screw allows you to shorten the effective travel from the 145 mm nominal stroke down to 125 mm, creating a 125-145 mm usable window. This stopper sets the end position but does not lock or hold the load without live air pressure.
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