This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX80S, 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 SI32AX80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX80S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX80S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 80mm stroke, and a SUS420J2 stainless steel rod. Delivering 402N push force at 0.5MPa, it is directly replaced by the SAI32AX80S direct, sharing the exact G1/8 port and mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. The -S magnet works with CS1-B/DS1-B switches, while the SAI family adds SAIL, SAIF, and BSAI lock variants.
| Model | Airtac SI32 Standard Air Cylinder SI32AX80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX80S |
| Bore size | Ø32 mm |
| Stroke | 80 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 SAI32AX80S 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 SAI32AX80S 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. |
| ×80 | 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).
Uses the 402N push force at 0.5MPa to reliably push small machined components out of CNC fixtures without damaging surfaces.
Diverts small lightweight boxes on a 80mm stroke, with the 30-800mm/s speed range allowing rapid pneumatic sorting gate actuation.
The SUS420J2 stainless rod provides corrosion resistance for repetitive cycling in humid environmental testing chambers.
To replace the SI32AX80S, order the SAI32AX80S to retain the exact ISO 15552 mounting interface, 80mm stroke, G1/8 port, and M10x1.25 rod thread. The -S magnet enables CS1-B/DS1-B sensors, and the -A rod specifies SUS420J2 stainless steel. For higher force, the 40mm bore yields 628N push at 0.5MPa; for lighter loads, verify space. Because air cushions only decelerate, use a pilot check valve or SAIL lock to hold loads.
Replacement checklist
Yes, the SI32AX80S is discontinued. The direct replacement is the SAI32AX80S, which shares the exact ISO 15552 mounting interface, 32mm bore, 80mm stroke, output force, and G1/8 port.
The 32mm bore features a G1/8 air port and provides 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 SAI32AX80S replacement — usually within 7-8 hours.