
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX275-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 275mm 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 SAIJ160X275-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks requiring precise end-position tuning. This mechanism enables fine-tuning during commissioning or product changeovers without swapping out the entire unit.
Built with a SUS304 stainless steel rod for superior corrosion resistance, this model includes a magnet for position sensing via CMSE reed and DMSE electronic switches. The extruded aluminum barrel integrates sensor grooves on both sides, and the G3/4 PT tapered port ensures high flow capacity for rapid actuation at speeds up to 30-500 mm/s.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 275 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. |
| ×275 | 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 255-275 mm stroke window during product size transitions without physically replacing the cylinder or adding external mechanical stops.
Integrate CMSE or DMSE sensors in the dual-side barrel grooves to confirm retract positions within the adjustable travel window.
Select this 160 mm bore cylinder when an application demands high thrust—stepping down to a 125 mm bore drops the 0.7 MPa push force to 8590N. Choose this adjustable-stroke SAIJ variant over a fixed SAI when you need to dial in a variable end-stop on the fly. For exact ISO 15552 replacement matching, verify the 275 mm stroke, 20 mm adjustment range, PT G3/4 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting options, and the -S magnet requirement.
Because the 275 mm stroke exceeds 300 mm when fully extended, long unsupported loads require an external guide to prevent rod side-loading. Remember that the rear adjuster acts only as a travel stop; it will not hold a load without live air. For true fail-safe load holding, consider an external pilot-operated check valve or the AirTAC BSAI clamp-lock series.
Quick checklist
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 275 mm nominal stroke, giving a usable window of 255 to 275 mm. It functions as an end-position stopper and does not lock the load without live air pressure.
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