This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X230S, 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 SI32X230S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 230mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X230S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X230S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 230mm stroke, delivering 402N push force at 0.5MPa through its G1/8 port. AirTAC replaced this legacy unit with the SAI32X230S, a direct upgrade retaining the exact same interface, bore, stroke, output force, and mounting accessories.
The SAI replacement features an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family expands capabilities with SAIL, SAIF, and BSAI lock or valve variants the original SI lacked.
| Model | Airtac SI32 Standard Air Cylinder SI32X230S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X230S |
| Bore size | Ø32 mm |
| Stroke | 230 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 SAI32X230S 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 SAI32X230S 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. |
| ×230 | 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 pushing lightweight machined components out of a fixture, utilizing the 402N push force at 0.5MPa to reliably clear the work area.
Suitable for actuating small diverting arms or gates on a packaging line, where the 230mm stroke provides adequate travel to redirect boxes.
To replace the discontinued SI32X230S, order the SAI32X230S and verify your ISO 15552 mounting interface, 230mm stroke, G1/8 port, and mounting accessory (LB, FA, TC, etc.). The integrated magnet (-S) works with legacy CS1-B/DS1-B switches, though the SAI family uses current AirTAC sensors. If you need more force, neighboring bores like 40mm offer 628N push at 0.5MPa; if less is required, dropping pressure reduces output accordingly. Because the 230mm stroke exceeds 300mm guidelines, ensure adequate guiding to prevent rod bending or side-load wear. Note that a standard cylinder does not hold load without live air—the cushion only decelerates. For load holding on air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI32X230S is discontinued. The direct replacement is the AirTAC SAI32X230S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 230mm stroke, G1/8 port, and mounting interface, so it fits existing fixtures perfectly.
The 32mm bore features a G1/8 air port and provides a push force of 402N and pull force of 345N at 0.5MPa. At 0.7MPa the push force is 563N, and at 0.9MPa it is 724N. The theoretical maximum force is 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X230S replacement — usually within 7-8 hours.