This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX30, 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 SI32AX30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 30mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX30 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 30mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, its direct replacement is the SAI32AX30, sharing identical mounting and dimensions. This specific SKU features a SUS420J2 stainless steel rod (-A) but lacks a magnet, meaning it cannot accept position sensors.
The SAI32AX30 upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also expands capabilities with SAIL, SAIF, and BSAI lock variants absent from the legacy line.
| Model | Airtac SI32 Standard Air Cylinder SI32AX30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX30 |
| Bore size | Ø32 mm |
| Stroke | 30 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 SAI32AX30 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 SAI32AX30 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. |
| ×30 | 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).
Perfectly suited for pushing lightweight finished parts out of a die or fixture over a brief 30mm travel distance at high cycle rates.
The SUS420J2 stainless rod offers necessary corrosion resistance for shifting sample trays or valves in damp scientific environments.
To replace the SI32AX30, order the SAI32AX30 to retain the exact ISO 15552 mounting interface, 32mm bore, 30mm stroke, G1/8 port, and M10x1.25 rod thread. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; choose an SAI model with S if sensing is required. If your application needs higher force, step up to a 40mm bore (628N at 0.5MPa); if less is needed, consider smaller non-ISO alternatives. Note that a standard cylinder drifts without live air, so for load holding explore the SAIL lock or an external pilot check valve. The -A rod provides corrosion resistance compared to standard carbon steel.
Replacement checklist
Yes, the SI32AX30 is discontinued. The direct replacement is the SAI32AX30, which matches the ISO 15552 mounting interface, 32mm bore, 30mm stroke, and G1/8 port.
It features a G1/8 port and generates 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a maximum theoretical force of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX30 replacement — usually within 7-8 hours.