
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 85mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ80X85-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to fine-tune the travel window from 75 to 85 mm without adding external stops. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 2513 N push force at 0.5 MPa, making it ideal for medium-to-heavy pneumatic tasks.
Because the adjuster acts purely as a mechanical stop on the retract end, it does not hold the load without live air pressure; for true load-holding requirements, consider the SAIL or BSAI series. This 80 mm bore model uses a 25 mm rod and M20x1.5 rod thread to handle high side loads, while the extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
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. |
| ×85 | 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 75-85 mm travel window during product size transitions to set exact retract positions without physically replacing the cylinder.
Use the rear stopper to fine-tune the endpoint for a 2513 N push force application, ensuring packages halt precisely at the processing station.
Adjust the 10 mm stroke window on the fly to accommodate slight variations in part tolerances during delicate press-fit operations.
Choose this 80 mm bore adjustable-stroke cylinder when your application requires exact end-position tuning during commissioning or product changeover, stepping up from a 63 mm bore that provides 1559 N push force at 0.5 MPa. The 10 mm adjustment range is perfect for dialing in short 85 mm strokes without swapping out the entire actuator.
For an exact ISO 15552 replacement, match the 80 mm bore, 85 mm stroke, 10 mm adjustment code, PT port thread, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. Since this is a non-magnetic variant without the -S option, it will not support AirTAC CMSE or DMSE sensors directly.
Quick checklist
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 85 mm nominal stroke by up to 10 mm, creating a usable travel window of 75 to 85 mm. It only decelerates and sets the end position; it does not lock the load without live air pressure.
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