This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X100-50SN, 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 SIJ32X100-50SN 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 SAIJ32X100-50SN, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X100-50SN is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ32X100-50SN. Its external stop screw lets you trim the extend stroke by up to 50mm on-site, giving a usable 50-100mm window from the 100mm nominal maximum. The stop sets the end position but is not a load lock.
The SAIJ direct retains the interface, force, and mounting, while adding an upgraded two Y-shaped one-way piston seal for low start-up pressure. The -S magnet suits legacy CS1-B/DS1-B switches, and the -N NBR seal handles -20 to +70C. For load holding on air loss, use SAIL/BSAI or an external rod lock.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X100-50SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X100-50SN |
| 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 SAIJ32X100-50SN 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 SAIJ32X100-50SN 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).
Field-tunes the extend clamp position on parts of varying widths without swapping cylinders, trimming up to 50mm on-site.
Sets precise diverting distances on a conveyor line where product lengths change, using the 50-100mm usable stroke window.
Dials in the exact downward sealing depth for different carton heights, relying on the external stop screw to set the end position.
To replace the discontinued SIJ32X100-50SN, map directly to the SAIJ32X100-50SN direct, keeping the 32mm bore, 100mm stroke, 50mm adjust window, and G1/8 port. Choose the 50mm adjust window if your field stroke tuning requires trimming the extend by up to 50mm; the stop sets end position and is not a lock. Mounting uses FA, LB, or TC brackets. The -S magnet enables CS1-B/DS1-B sensors; without -S there is no sensor. For strokes >=300mm, verify side-load guidance.
Replacement checklist
Yes, the SIJ32X100-50SN is discontinued. The direct replacement is the SAIJ32X100-50SN, offering the same ISO 15552 interface, 32mm bore, 100mm stroke, 50mm adjust window, G1/8 port, and mounting. The SAIJ uses an upgraded piston seal and current AirTAC switches.
The external stop screw allows trimming the extend stroke by up to 50mm on-site, yielding a usable 50-100mm window from the 100mm nominal maximum. 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 SAIJ32X100-50SN replacement — usually within 7-8 hours.