
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX155-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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 SAIJ80X155-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that provides a usable travel window of 55 to 155 mm. The integrated magnet enables direct position feedback using AirTAC CMSE reed and DMSE electronic sensors mounted into the dual-side extruded barrel grooves.
Equipped with a massive 100 mm adjustment range, this cylinder allows you to dial back the end-of-stroke position at commissioning without swapping hardware or adding external stops. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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. |
| ×155 | 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 assembly lines processing different product lengths, allowing the stroke to be dialed back up to 100 mm via the rear screw without changing the cylinder mounting position.
Perfect for fine-tuning the retract end-position during machine setup, ensuring precise alignment of heavy 80 mm bore tooling without adding external mechanical stops.
The SUS420J2 stainless steel rod withstands harsh wash-down and industrial settings while providing reliable position detection via the integrated magnet and DMSE sensors.
If you need less force, stepping down to a 63 mm bore yields 1559 N; stepping up to 100 mm provides 3927 N. Unlike a fixed-stroke SAI cylinder, this SAIJ model allows variable end-stops for rapid machine changeover.
For an exact ISO 15552 replacement match, specify: 80 mm bore, 155 mm stroke, 100 mm adjustment, PT tapered port threads, SUS420J2 (A) rod material, and a magnet for -S sensors. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 155 mm stroke exceeds 300 mm only in larger configurations, side-load is manageable here, but always guide external loads to prevent rod binding.
Quick checklist
At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 155 mm down to 55 mm. It only decelerates and sets the travel end; it does not lock or hold the load without continuous live air pressure.
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