This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X100-20, 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 SIJ32X100-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X100-20, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X100-20 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 80-100 mm range from the 100 mm nominal maximum. The direct replacement is the SAIJ32X100-20, matching the interface, force, and adjust window.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements 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. This non-magnet SKU cannot take a switch.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X100-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X100-20 |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAIJ32X100-20 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 SAIJ32X100-20 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. |
| ×100 | 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).
Tuning the extend stroke by up to 20 mm on-site lets operators set the exact diverter angle for changing product lines without machining new hard stops.
Trimming the 100 mm extend stroke ensures consistent contact pressure on different carton heights, preventing crushing while maintaining a secure fold.
The adjustable end position allows precise control of where parts halt on the belt, accommodating varied product lengths without swapping cylinders.
To replace the discontinued SIJ32X100-20, order the direct replacement SAIJ32X100-20, reusing your existing FA, LB, or TC ISO 15552 mounts. The 20 mm adjust window lets you tune the extend stroke from 80 to 100 mm on-site, often beating a fixed SAI plus external stop by saving space. Because this SKU lacks the -S magnet, it cannot accept a sensor; add -S for legacy CS1-B/DS1-B switch accuracy. For strokes of 300 mm or more, verify side-load guiding to prevent rod binding.
Replacement checklist
Yes, the SIJ32X100-20 is discontinued. The direct replacement is the SAIJ32X100-20, which shares the same ISO 15552 interface, 32 mm bore, 100 mm stroke, 20 mm adjust window, G1/8 port, and mounting options.
The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be shortened from the 100 mm maximum down to 80 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X100-20 replacement — usually within 7-8 hours.