This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX100N, 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 SI32AX100N 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 SAI32AX100N, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX100N is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 100mm stroke. It delivers 402N push and 345N pull at 0.5MPa through a G1/8 port. The direct replacement is the SAI32AX100N, sharing the same interface, force, and mounting. This specific SKU features a SUS420J2 stainless piston rod (-A) and NBR seals (-N), but lacks a magnet, so it cannot accept a sensor.
The SAI32AX100N upgrades the piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
| Model | Airtac SI32 Standard Air Cylinder SI32AX100N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX100N |
| 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 SAI32AX100N 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 SAI32AX100N 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).
Ideal for holding light machined components during drilling, utilizing the 402N push force and SUS420J2 stainless rod for corrosion resistance in wet coolant environments.
Deploys precise pressing or insertion forces for PCB connectors, where the NBR seals and 20kg vertical lift capacity match light-duty automated handling tasks.
To replace this SI32AX100N with the SAI32AX100N, verify the ISO 15552 mounting interface, 100mm stroke, G1/8 port, and NBR seal. Because this SKU lacks an -S magnet, it cannot support legacy CS1-B/DS1-B sensors; order an -S version if sensing is required. The 32mm bore yields 402N push at 0.5MPa; if undersized, the 40mm bore provides 628N. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The SUS420J2 rod is ideal for corrosive settings.
Replacement checklist
Yes, the SI32AX100N is discontinued. The direct replacement is the SAI32AX100N. It is dimensionally interchangeable per ISO 15552, maintaining the same 32mm bore, 100mm stroke, G1/8 port, and mounting interface.
This 32mm bore cylinder uses a G1/8 port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX100N replacement — usually within 7-8 hours.