This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X132STC, 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 SI32X132STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 132mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X132STC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X132STC is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 132mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32X132STC, matching the bore, stroke, force, port, and TC trunnion mount exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
| Model | Airtac SI32 Standard Air Cylinder SI32X132STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X132STC |
| Bore size | Ø32 mm |
| Stroke | 132 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 SAI32X132STC 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 SAI32X132STC 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. |
| ×132 | 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 lightweight molded parts out of an injection molding fixture.
Actuates a routing gate on a packaging line, where the 345N pull force easily handles the friction of the diverter arm.
To replace the SI32X132STC, order the SAI32X132STC. Confirm the ISO 15552 interface, 32mm bore, 132mm stroke, G1/8 port, and TC trunnion mount. The 132mm stroke is nonstandard; ensure fixture clearance. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa, while dropping to 0.3MPa yields ~241N. For loads over 20kg, use external guides to prevent rod bending. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The SAIF variant adds a built-in 4M valve.
Replacement checklist
Yes, the SI32X132STC is discontinued. The direct replacement is the AirTAC SAI32X132STC. It is dimensionally interchangeable per ISO 15552, retaining the exact same 32mm bore, 132mm stroke, G1/8 port, and TC trunnion mounting interface.
This 32mm bore double-acting cylinder uses a G1/8 air port. The thrust ratings are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X132STC replacement — usually within 7-8 hours.