This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X100SN, 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 SI32 Standard Air Cylinder SI32X100SN 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 SAI32X100SN, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X100SN is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 100mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X100SN. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, and port.
The SAI32X100SN features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The NBR seal handles -20 to +70C, while a Viton H option extends this to 0-150C. The -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI32 Standard Air Cylinder SI32X100SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X100SN |
| 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 SAI32X100SN 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 SAI32X100SN 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).
Provides reliable 402N push force at 0.5MPa to eject small machined components from fixtures.
Actuates diverting gates on 100mm strokes, moving light packages at speeds up to 800mm/s.
To replace the SI32X100SN, order the SAI32X100SN. Confirm the ISO 15552 interface, 32mm bore, 100mm stroke, G1/8 port (PT/G/NPT), and mounting accessory. The -S magnet enables current AirTAC switches, replacing legacy CS1-B/DS1-B units. If you need more force, the 40mm bore offers 628N push at 0.5MPa; if less is required, consider a smaller bore. Note that a plain cylinder drifts on air loss since the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve option for bores 32-100mm.
Replacement checklist
Yes, the SI32X100SN is discontinued. The direct replacement is the SAI32X100SN. It shares the same ISO 15552 mounting interface, 32mm bore, 100mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly.
The 32mm bore uses a G1/8 port. Force outputs are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. The piston rod is 12mm with an M10x1.25 thread.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X100SN replacement — usually within 7-8 hours.