
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX30-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 30mm 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 SAIJ80X30-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. With a nominal 30mm stroke and a 30mm adjustment range, this configuration provides a highly adaptable 0-30mm usable travel window for precise positioning.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat neatly into the sensor grooves on both sides of the extruded aluminum barrel. The rear adjuster functions strictly as a mechanical stop to dial in the retract end position during setup, meaning it will not hold a load without continuous live air pressure. For load-holding requirements, consider an external rod lock or the related SAIL cylinder series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX30-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 30 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. |
| ×30 | 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.
Ideal for clamping varied part sizes on a machining fixture, using the 0-30mm adjustment to accommodate different material thicknesses without retooling the entire station.
Enables rapid line changeovers in packaging equipment by allowing operators to dial in the exact retract end-stop position for different package dimensions on the fly.
Provides high-force (2513N at 0.5MPa) positioning where exact end-of-travel matters, using the rear stopper to guarantee repeatable physical contact against the workpiece.
The adjustable 0-30mm travel window is specifically beneficial for machines requiring rapid product-size changeovers, allowing operators to fine-tune the retract distance on the fly without swapping out the physical cylinder for a fixed-stroke SAI variant.
Because the nominal stroke is only 30mm, side-loading risks are minimal, but the robust 25mm rod and M20x1.5 thread naturally handle greater off-center loads than smaller bores. When matching this exact ISO 15552 interchangeable replacement, confirm the PT tapered port threads, the SUS304 (B) rod material, the -S magnet requirement, and compatibility with the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), which omits FB, CA, CB, and CR brackets.
Quick checklist
If operating pressure is increased to 0.7MPa, the push force rises to 3518N.
The rear mechanical adjuster allows you to trim the effective travel anywhere within a 0-30mm window from the nominal 30mm stroke. This stopper sets the retract end position but does not lock the load without live air pressure.
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