
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX105-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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 SAIJ80X105-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 105 mm travel back by up to 75 mm. This creates a highly flexible 30-105 mm usable window, letting you dial in the exact end position during commissioning without swapping out the barrel or adding external stops.
This unit is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. It features PT tapered ports and omits the FB, CA, CB, and CR mounting interfaces, offering the standard SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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. |
| ×105 | 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.
Rapidly adjust the 30-105 mm travel window during product size changes to set new retract positions without disassembling the actuator.
Fine-tune the final retract position during initial commissioning, using the rear screw to compensate for mechanical tolerances in the fixture.
Leverage the SUS304 stainless steel rod for positioning tasks in environments where moisture or cleaning chemicals would degrade standard carbon steel.
The 75 mm adjustment range is particularly useful for product changeovers on a line, allowing you to reposition the retract end-stop on the fly rather than machining new fixture plates. For true load-holding without continuous air pressure, you would need to step away from the SAIJ and select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 105 mm stroke, PT port thread, and the required mounting accessory. Because this cylinder lacks a magnet, position sensing requires adding external hardware or switching to a -S coded model to utilize the integrated sensor grooves with CMSE reed or DMSE electronic switches.
Quick checklist
At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that can shorten the 105 mm nominal stroke by up to 75 mm, giving you a usable travel window of 30 to 105 mm. It sets the end position but does not lock the load without live air.
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