
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX120-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 120mm 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.
The AirTAC SAIJ160X120-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end-of-travel position. With a nominal 120 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 100-120 mm.
Equipped with a SUS304 stainless steel rod (option B) and a PT tapered port, this model is built for demanding environments. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports position detection using AirTAC CMSE reed or DMSE solid-state switches.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX120-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 120 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. |
| ×120 | 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 100-120 mm travel window during product size transitions without replacing the cylinder or adding external stopper blocks.
Compensates for mechanical tolerance stack-up during initial machine commissioning by trimming up to 20 mm off the nominal stroke directly at the cylinder.
Choose this 160 mm bore cylinder when an application requires high force combined with precise end-position tuning at commissioning, avoiding the need to swap out physical components or add external stops. Remember that the rear adjuster acts solely as a travel stop; it does not hold the load without live air pressure. For secure load-holding without continuous air supply, consider an AirTAC SAIL or BSAI cylinder. To ensure a true ISO 15552 replacement match, verify the 160 mm bore, 120 mm stroke, 20 mm adjustment, PT G3/4 port, and the -S magnet requirement.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from its nominal 120 mm down to 100 mm. This creates a 100-120 mm adjustable travel window for fine-tuning at commissioning, but it does not lock or hold the load without continuous air pressure.
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