This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X450-10, 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 SIJ32X450-10 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 SAIJ32X450-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X450-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 10mm on-site (usable 440-450mm). This SKU lacks a magnet (-S) and cannot take a sensor. The direct replacement is the SAIJ32X450-10, retaining the G1/8 port and M10x1.25 rod thread.
The SAIJ successor uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X450-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X450-10 |
| 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 SAIJ32X450-10 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 SAIJ32X450-10 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. |
| ×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).
Finalizing the exact extend end position of a small clamping fixture on-site, using the 10mm adjust screw to dial in the 450mm stroke without machining.
To replace the discontinued SIJ32X450-10, order the direct replacement SAIJ32X450-10, which matches the 32mm bore, 450mm stroke, 10mm adjust window, G1/8 port, and ISO 15552 mounting. When sizing both ways, the neighboring 40mm bore raises the 0.5MPa push to 628N, while dropping to a smaller bore reduces force. Choose the 10mm adjust window if you need to fine-tune the extend end position by up to 10mm on-site. Mounting options include FA, LB, and TC brackets. Because the 450mm stroke exceeds 300mm, support the rod against bending and use external guides to manage side loads. This non-magnetic SKU cannot accept a position sensor.
Replacement checklist
Yes, the SIJ32X450-10 is discontinued. The direct replacement is the SAIJ32X450-10. It shares the same ISO 15552 interface, 32mm bore, 450mm stroke, 10mm adjust window, G1/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw offers a 10mm adjust window, allowing you to shorten the 450mm extend stroke down to 440mm. 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 SAIJ32X450-10 replacement — usually within 7-8 hours.