
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX120-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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 SAIJ80X120-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. The built-in magnet enables position sensing with CMSE reed or DMSE electronic switches.
This specific SKU carries a 100mm adjustment code, transforming the 120mm nominal stroke into a highly versatile 20 to 120mm usable travel window. This wide tuning band allows operators to dial in the exact retract end-position during machine setup or product changeovers without swapping out the physical cylinder. The barrel incorporates sensor grooves on both sides, and the G3/8 porting feeds pneumatic cushioning at both ends to decelerate the load smoothly.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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. |
| ×120 | 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.
Quickly reconfigure the retract distance from 20mm up to 120mm on packaging lines handling different carton sizes without changing the cylinder hardware.
Fine-tune the exact end-position of pressing or locating pins during machine commissioning to ensure perfect alignment before locking down the sequence.
Serve as a programmable physical stop on automated conveyors where the required retraction length shifts based on the specific workpiece being processed.
The massive 100mm adjustment range is ideal for packaging lines or assembly fixtures that process multiple product sizes on the same frame, replacing the need to manually swap fixed-stroke SAI cylinders.
Because the rear screw acts only as a travel stop and the air cushions handle deceleration, this cylinder cannot hold a load unpowered—implement an external rod lock or pilot-operated check valve if static load-holding is required. To match this ISO 15552 footprint for a direct replacement, specify the 80mm bore, 120mm stroke, PT tapered port threads, the -S magnet option, and a mounting accessory from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
If pressure is increased to 0.9 MPa, the push force rises to 4523N.
The rear adjuster screw lets you mechanically shorten the effective stroke from its 120mm nominal length down to as little as 20mm. This creates a 20-120mm travel window, allowing precise end-position tuning without adding external stops.
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