
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX900-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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 SAIJ80X900-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 900 mm travel to anywhere within an 800-900 mm usable window. The integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic solid-state sensors.
Because the stroke reaches 900 mm, the 25 mm rod diameter and M20x1.5 rod thread provide robust support, though an external guide is highly recommended to manage side loads on such a long unsupported span. The rear adjuster acts purely as a travel stop for end-position tuning during commissioning; it does not hold the load without live air pressure. For load-holding requirements, consider an external rod lock or the related SAIL pneumatic lock cylinder series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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. |
| ×900 | 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.
Adjusts the retract distance on a sorting line to handle different package sizes without physically repositioning the cylinder mount.
Fine-tunes the 800-900 mm travel window during setup to perfectly time the end-of-stroke position without adding external stopper hardware.
Quickly dials in a new end-stop position on automated assembly lines when switching between different product lengths.
The 100 mm adjustment range is ideal for machinery requiring flexible end-stops during product changeovers, eliminating the need to physically swap cylinders or bolt on external stopper blocks. This model uses PT tapered ports and supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
When replacing an ISO 15552 cylinder, match the 80 mm bore, 900 mm nominal stroke, 100 mm adjustment code, PT G3/8 port, and the -S magnet requirement. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement. Remember that the air cushion and rear stopper only decelerate the piston; they are not a braking mechanism, so pilot-operated check valves are needed to hold loads statically without air pressure.
Quick checklist
At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you mechanically shorten the effective stroke from the nominal 900 mm down to 800 mm. This creates an 800-900 mm adjustable travel window for fine-tuning end positions at commissioning, acting as a stop rather than a load lock.
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