This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X75-30, 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 SIJ32X75-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X75-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X75-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 45-75 mm extend range from the 75 mm nominal maximum. The direct replacement is the SAIJ32X75-30, matching the interface, force, and mounting.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop screw sets end position only; it is not a lock, so use an external rod lock for held loads. This SKU lacks a magnet and cannot take a switch.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X75-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X75-30 |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAIJ32X75-30 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 SAIJ32X75-30 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. |
| ×75 | 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).
A packaging dial feed requiring precise 45-75 mm extend stops to push varied carton widths without swapping the entire cylinder.
A conveyor diverter arm needing on-site stroke trimming to accommodate profile height changes without re-engineering the hard stops.
A small bore 32 mm assembly station pressing caps where the 30 mm adjust window dials the exact seating depth for different batches.
To replace the discontinued SIJ32X75-30, order the direct replacement SAIJ32X75-30, reusing your FA, LB, or TC ISO 15552 mounts. Choose the 30 mm adjust window if you need field stroke tuning between 45-75 mm; if fixed positioning is enough, a standard SAI avoids the stop screw. This non-magnetic SKU cannot fit a sensor; order a -S SAIJ if you need legacy CS1-B/DS1-B switch accuracy. For stroke lengths over 300 mm, verify side-load guidance. The external stop sets end position but is not a load lock; for held loads use SAIL/BSAI or an external rod lock.
Replacement checklist
Yes, the SIJ32X75-30 is discontinued. The direct replacement is the SAIJ32X75-30. It shares the same ISO 15552 interface, 32 mm bore, 75 mm stroke, 30 mm adjust window, G1/8 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal.
The external stop screw provides a 30 mm adjust window, allowing you to trim the extend stroke from the 75 mm nominal maximum down to 45 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X75-30 replacement — usually within 7-8 hours.