This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-10S, 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 SIJ32X450-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 450mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X450-10S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X450-10S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore, 450 mm maximum stroke, and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 440-450 mm forward travel. This bore uses a G1/8 port, a 12 mm rod, and 27 mm adjustable cushions. Because the SIJ line is end-of-life, the direct replacement is the SAIJ32X450-10S, retaining the same interface, force, and adjustability.
The SAIJ upgrade features a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-10S |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAIJ32X450-10S 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 SAIJ32X450-10S 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. |
| ×450 | 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).
Ideal for assembly stations needing exact 440-450 mm extend positioning, using the stop screw to dial in the final 10 mm without re-engineering the fixture.
Useful on diverters where the extend reach must be adjusted by a few millimeters on-site to accommodate varying package sizes without changing cylinder mounts.
To replace the discontinued SIJ32X450-10S, order the direct replacement SAIJ32X450-10S, which preserves the 32 mm bore, 450 mm nominal stroke, 10 mm adjust window, G1/8 port, and ISO 15552 mounting dimensions. The 10 mm adjust window is ideal for fine-tuning the extend end position within the 440-450 mm range. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). Because the stroke is 450 mm, ensure external guides support side loads to prevent rod bending.
Replacement checklist
Yes, the SIJ32X450-10S is discontinued. The direct replacement is the SAIJ32X450-10S. It shares the identical ISO 15552 interface, 32 mm bore, 450 mm stroke, 10 mm adjust window, G1/8 port, and mounting options, but features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 10 mm adjust window, allowing you to shorten the 450 mm extend stroke down to 440 mm on-site. 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 SAIJ32X450-10S replacement — usually within 7-8 hours.