
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX190-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X190-20 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. By turning the rear screw, you can trim the effective travel within a 170 to 190 mm window, enabling precise end-position tuning without swapping hardware.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads with a G3/8 connection. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear stopper sets the retract position but does not lock the load; for dead-pilot holding, consider an external SAIL or BSAI lock cylinder.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX190-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 170 to 190 mm travel window during line format changes to accommodate different package depths without replacing the actuator.
Fine-tune the retract position during commissioning to perfect tool alignment, using the rear screw rather than re-shimming mechanical stops.
The 20 mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to bolt on external stops or buy a fixed-stroke SAI cylinder. When specifying an exact ISO 15552 replacement, match the 190 mm stroke, 20 mm adjuster, PT G3/8 port, and desired mounting bracket. Because the 190 mm stroke is relatively short, side-load stress is minimal, though the robust 25 mm rod naturally handles greater off-center loads than smaller bores. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop that shortens the nominal 190 mm stroke by up to 20 mm, creating a 170 to 190 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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