
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX115-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 115mm 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 SAIJ160X115-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -20mm adjustment mechanism allows you to fine-tune the retract end position, creating a usable travel window between 95 and 115mm without adding external stops. This version includes a magnet for position sensing and uses a SUS304 stainless steel rod for superior corrosion resistance.
Unlike fixed-stroke actuators, this model lets you dial in the exact end-of-stroke position during commissioning or product changeover. The rear adjuster acts purely as a mechanical travel stop to set the deceleration point alongside the standard air cushions; it does not lock or hold the load without live air pressure. For applications requiring true position holding, consider the SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX115-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 115 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. |
| ×115 | 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 95-115mm travel window during machine setup to accommodate different material thicknesses without swapping the entire actuator.
Quickly readjust the retract end-stop on automated assembly lines when switching between product variants, minimizing downtime.
The SAIJ160X115-20-S is specified here with PT tapered ports and a SUS304 stainless steel rod, which handles harsh environments better than standard carbon steel.
When replacing an ISO 15552 cylinder, match the 160mm bore, 115mm nominal stroke, 20mm adjustment range, PT port thread, and -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR brackets. Although this features a robust 40mm rod and M36x2 thread, long unsupported strokes exceeding 300mm still require an external guide to prevent side-load damage.
Quick checklist
The rear adjuster allows you to mechanically shorten the effective stroke by up to 20mm. This creates an adjustable travel window from 95 to 115mm, letting you fine-tune the end position at commissioning without external stops.
At 0.7 MPa, the push force increases to 14074N, making it suitable for heavy-duty pressing and positioning tasks.
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