
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX185-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm 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 SAIJ80X185-10 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant incorporates a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves, allowing you to add CMSE reed or DMSE electronic switches if positioning feedback is later required.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX185-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 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. |
| ×185 | 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 175-185mm retract position during product size changes without swapping out the entire cylinder or adding external stopper blocks.
Fine-tune the final end-of-stroke deceleration point at commissioning to perfectly seat components, absorbing kinetic energy via the 36mm air cushion.
The adjustable stroke is perfect for machine setups requiring variable end-stops during product changeovers, rather than relying on a fixed-stroke SAI cylinder. When specifying an ISO 15552 replacement, match the 80mm bore, 185mm stroke, PT port thread, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For load-holding without pressure, consider an external rod lock or the SAIL series.
Quick checklist
If pressure is increased to 0.7 MPa, the push force rises to 3518N.
The rear adjusting screw allows you to shorten the effective stroke by up to 10mm, creating a usable travel window of 175-185mm. This stopper fine-tunes the end position at commissioning but does not lock the load without continuous air pressure.
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