This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X150-75, 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 SIJ32X150-75 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 SAIJ32X150-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X150-75 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 75mm on-site, giving a usable 75-150mm window from the 150mm nominal maximum.
The direct replacement is the SAIJ32X150-75, matching the interface, bore, force, and mounting. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note the stop screw sets end position only; it is not a load lock.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X150-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X150-75 |
| 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 SAIJ32X150-75 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 SAIJ32X150-75 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).
Dial in precise 75-150mm extend stops on-site for drilling multiple material thicknesses without swapping cylinders.
Tune the extend stroke on the fly to fold varying carton heights, using the stop screw to set the exact flap position.
Field-adjust the diverter arm stroke between 75mm and 150mm to route different package widths on a single line.
To replace this discontinued SIJ32X150-75, order the direct replacement SAIJ32X150-75, keeping the exact 32mm bore, 150mm nominal stroke, 75mm adjust window, and G1/8 port. Mounting interfaces (Basic, FA, LB, TC) reuse directly under ISO 15552. This SKU lacks the -S magnet and cannot accept a sensor. For strokes >=300mm, verify side-load guidance to prevent rod binding. The stop screw only sets end position and does not hold load on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
Yes, the SIJ32X150-75 is discontinued. The direct replacement is the SAIJ32X150-75, offering the same ISO 15552 interface, 32mm bore, 150mm nominal stroke, 75mm adjust window, and G1/8 port. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows you to shorten the extend stroke by up to 75mm on-site, yielding a usable 75-150mm stroke. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X150-75 replacement — usually within 7-8 hours.