This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X500-10, 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 SIJ32X500-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X500-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X500-10 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 500 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 490-500 mm window for field tuning. This SIJ model is discontinued; the direct replacement is the SAIJ32X500-10, matching the interface, force, and mounting.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. This non-magnet SKU cannot take a switch. Note the stop screw sets end position only—it is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X500-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X500-10 |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAIJ32X500-10 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 SAIJ32X500-10 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. |
| ×500 | 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).
Field-trimming the 10 mm stroke window to adapt a 32 mm bore pusher for varying box sizes on a packaging line.
To replace the discontinued SIJ32X500-10, order the direct replacement SAIJ32X500-10, reusing your existing FA, LB, or TC ISO 15552 mounts. The 10 mm adjust window allows precise 490-500 mm extend tuning without machining. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch—add external sensors if needed. For the 500 mm stroke, use external guides to prevent rod bending and side-load damage. Remember the stop screw is not a lock; pilot-operated check valves are required for load holding.
Replacement checklist
Yes, the SIJ32X500-10 is discontinued. The direct replacement is the SAIJ32X500-10, which shares the same ISO 15552 interface, 32 mm bore, 500 mm stroke, 10 mm adjust window, and G1/8 port. The SAIJ features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 10 mm adjustment window, allowing the extend stroke to be shortened from 500 mm down to 490 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X500-10 replacement — usually within 7-8 hours.