
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX190-20S 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-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The SUS304 stainless steel rod provides excellent corrosion resistance, and the integrated magnet supports position sensing.
This model utilizes PT tapered ports and includes adjustable air cushions at both ends to manage kinetic energy. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position without needing external stops, though it does not lock the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX190-20S |
|---|---|
| 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 exact 170-190mm retract position during setup without swapping cylinders or adding external stopper blocks.
Quickly adjust the stroke end by up to 20mm to accommodate different product sizes on the same production line.
Leverage the built-in magnet with CMSE reed or DMSE electronic sensors to confirm the adjusted end-of-travel position.
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (1559N at 0.5MPa) but does not need the full output of a 100mm bore (3927N at 0.5MPa). The adjustable 170-190mm travel window is ideal for product changeovers or fine-tuning end positions on the fly. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder, as this adjuster is only a travel stop.
To replace an ISO 15552 cylinder, match the 80mm bore, 190mm stroke, 20mm adjustment, PT ports, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the 190mm stroke is under 300mm, side-load stress is moderate, but the 25mm rod diameter handles standard loads effectively.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 20mm, creating a 170-190mm usable travel window. It acts as a mechanical stop to set the retract position precisely.
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