This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X50-10, 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 SIJ32X50-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 50mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X50-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X50-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 50 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 40-50 mm extension window. The stop sets the end position; it is not a load lock. The direct replacement is the SAIJ32X50-10, retaining the exact interface, force, and mounting.
The SAIJ successor uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. This non-magnet SKU cannot take a switch. A plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X50-10 |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32X50-10 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 SAIJ32X50-10 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. |
| ×50 | 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).
Ejecting small parts on a line where the non-magnet design is acceptable and the 10 mm stop screw dials in the exact ejection point.
Acting as a variable mechanical stop for lightweight 20 kg vertical lifts, using the external screw to set the final rest position.
To replace the discontinued SIJ32X50-10, order the direct replacement SAIJ32X50-10, reusing your existing FA, LB, or TC ISO 15552 mounts. Choose the 10 mm adjust window if you need precise 40-50 mm extend tuning. Because this SKU lacks the -S suffix, it has no magnet and cannot support legacy CS1-B/DS1-B sensors. As the 50 mm stroke is under 300 mm, side-load guide concerns are minimal. Remember the stop screw sets end position but does not lock; for load holding on air loss, specify a pilot-operated check valve or an external rod lock.
Replacement checklist
Yes, the SIJ32X50-10 is discontinued. The direct replacement is the SAIJ32X50-10, which shares the same ISO 15552 interface, 32 mm bore, 50 mm stroke, 10 mm adjust window, G1/8 port, and mounting options.
The external stop screw window is 10 mm, allowing you to trim the extend stroke from 50 mm down to 40 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X50-10 replacement — usually within 7-8 hours.