
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX190-75 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.
It features a SUS304 stainless steel rod and PT tapered port threads. By turning the rear stopper screw, you can trim the effective travel anywhere within a 115 to 190 mm window, providing immense flexibility during machine commissioning or product changeovers without swapping hardware.
This extruded aluminum profile cylinder relies on its external adjuster purely as a travel stop, not a load lock, meaning it cannot hold position without live air pressure. It supports a standard operating speed of 30-800 mm/s and includes sensor grooves on both sides for adding CMSE or DMSE switches when position feedback is required.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX190-75 |
|---|---|
| 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.
Dial in the 115-190mm travel window on the fly to accommodate different package lengths on a packaging line without changing out the cylinder.
Fine-tune the exact end-of-stroke position during commissioning to prevent crashes, using the rear stopper to perfect the 80mm bore's heavy thrust alignment.
If you need less force, stepping down to a 63mm bore yields 1559N, but the 80mm rod provides superior side-load resistance. The generous 75mm adjustment window makes this SKU ideal for prototyping or lines running multiple product sizes. For load-holding without continuous air, a standard SAIJ is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
Because the 190mm stroke is under the 300mm threshold, side-load stress is moderate, but an external guide is still recommended for heavy loads. To match this ISO 15552 interchangeable cylinder exactly, specify: 80mm bore, 190mm stroke, 75mm adjustment, PT port threads, SUS304 (B) rod material, and no magnet.
Quick checklist
If operating at 0.9 MPa, the push force increases to 4523N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 190mm nominal stroke by up to 75mm, creating a usable travel window of 115 to 190mm. It only sets the end position and does not lock the load without air pressure.
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