This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X150-75S, 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 SIJ32X150-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X150-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X150-75S 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 75 mm on-site, giving a usable 75-150 mm window from the 150 mm nominal maximum. The direct replacement is the SAIJ32X150-75S, matching the interface, force, and mounting.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss. For held loads, use an external rod lock or SAIL/BSAI variant. The SAIJ upgrade uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X150-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X150-75S |
| Bore size | Ø32 mm |
| Stroke | 150 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 SAIJ32X150-75S 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 SAIJ32X150-75S 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. |
| ×150 | 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).
Adjusts the extend stroke on-site to match multiple material thicknesses without swapping the entire actuator assembly.
Trims the extend position on packaging lines to accommodate different box sizes or flap heights dynamically.
Tunes the gate extension length on-site to route varying product widths accurately without repositioning mounts.
To replace the discontinued SIJ32X150-75S, order the direct replacement SAIJ32X150-75S, reusing your existing ISO 15552 FA, LB, or TC mounts. Choose the 75 mm adjust window when you need wide on-site extend variability from 75 to 150 mm. The -S magnet enables position sensing. For stroke lengths of 300 mm or greater, verify your side-load limits to prevent excessive rod wear.
Replacement checklist
Yes, the SIJ32X150-75S is discontinued. The direct replacement is the SAIJ32X150-75S. It shares the same ISO 15552 interface, 32 mm bore, 150 mm stroke, 75 mm adjust window, G1/8 port, and mounting, but adds an upgraded piston seal.
The external stop screw provides a 75 mm adjust window, allowing the extend stroke to be shortened from the 150 mm nominal maximum down to 75 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X150-75S replacement — usually within 7-8 hours.