
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX190-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm 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 SAIJ80X190-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable 140-190 mm adjustment window, letting you dial in the exact end position during commissioning without swapping out the physical cylinder.
This SKU is configured with an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads (G3/8). It supports standard AirTAC CMSE reed and DMSE electronic sensors via dual side sensor grooves. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX190-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 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. |
| ×190 | 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 140-190 mm travel window for different packaging formats without replacing the cylinder or repositioning machine mounts.
Fine-tune the retract position during machine commissioning to achieve exact clamping or pressing depths, avoiding costly mechanical shimming.
Adjust the stroke length on the fly for pneumatic diverters that need to accommodate different carton sizes on a single conveyor line.
The 50 mm adjustment range is particularly useful for production lines running mixed product sizes, as operators can quickly fine-tune the retract end-stop during changeovers instead of adding external stops or buying a fixed-stroke SAI cylinder.
For an exact ISO 15552 replacement, match the 80 mm bore, 190 mm nominal stroke, 50 mm adjuster code, PT port threads, and mounting choice. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the stroke is under 300 mm, side-load stress is manageable, but external guides are still recommended if the load is heavy or off-center. If true load-holding without air pressure is required, consider an AirTAC SAIL or BSAI cylinder instead.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw lets you shorten the 190 mm nominal stroke by up to 50 mm, providing a usable travel window of 140 to 190 mm. It functions as a mechanical stop and does not lock the load without continuous air pressure.
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