This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X80-75S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X80-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X80-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X80-75S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and G1/8 port. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 5-80 mm extension out of the 80 mm nominal maximum. The stop sets the end position; it is not a load lock, and the cylinder will drift on air loss.
This SIJ model is discontinued; the direct replacement is the SAIJ32X80-75S, retaining the same ISO 15552 interface, bore, stroke, force, and mounting. The SAIJ family introduces an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X80-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X80-75S |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X80-75S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X80-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Trimming the extend stroke down to 5 mm on-site allows precise clamping of variable thickness parts without machining custom spacers.
Adjusting the extend stop on the fly accommodates different package sizes on a conveyor line, ensuring accurate diverting without changing cylinders.
Fine-tuning the extend end position in the field compensates for product size variations in material handling push-off stations.
To replace the discontinued SIJ32X80-75S, order the direct replacement SAIJ32X80-75S, which preserves the 32 mm bore, 80 mm nominal stroke, 75 mm adjust window, G1/8 port, and FA/LB/TC mountings. Choose the 75 mm adjust window if your application requires trimming the extend stroke down to a 5 mm minimum; for fixed stops without on-site trim, a standard SAI cylinder is simpler. The -S magnet supports legacy CS1-B/DS1-B reed switches (the SAIJ uses current AirTAC switches). Because the 80 mm stroke is under 300 mm, side-load leverage is minimal, but always verify rod-end alignment. A plain cylinder does not hold loads without live air; for held loads use SAIL/BSAI or an external rod lock.
Replacement checklist
Yes, the SIJ32X80-75S is discontinued. The direct replacement is the SAIJ32X80-75S. It shares the identical ISO 15552 interface, 32 mm bore, 80 mm nominal stroke, 75 mm adjust window, G1/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw window is 75 mm, allowing you to trim the 80 mm nominal extend stroke down to a 5 mm minimum. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X80-75S replacement — usually within 7-8 hours.