This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X160S, 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 SI32X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 160mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X160S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X160S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 160mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32X160S, which shares identical mounting, bore, stroke, and output force.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI-S magnet supports legacy CS1-B/DS1-B switches, while SAI adds SAIL, SAIF, and BSAI lock variants.
| Model | Airtac SI32 Standard Air Cylinder SI32X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X160S |
| Bore size | Ø32 mm |
| Stroke | 160 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 SAI32X160S 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 SAI32X160S 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. |
| ×160 | 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 machined components out of a fixture on an assembly line.
To replace the SI32X160S, order the SAI32X160S. Verify the ISO 15552 interface, 32mm bore, 160mm stroke, G1/8 port, M10x1.25 rod thread, and the -S magnet for CS1-B/DS1-B sensors. If you need more force, the 40mm bore yields 628N push at 0.5MPa; if less is acceptable, check smaller bores. Note that 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. At 160mm stroke, side-load risks are low, but ensure guide alignment to prevent rod bending.
Replacement checklist
Yes, the AirTAC SI32X160S is discontinued. The direct replacement is the SAI32X160S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 32mm bore, 160mm stroke, output force, G1/8 port, and mounting accessories.
This 32mm bore double-acting cylinder features a G1/8 air 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 force of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X160S replacement — usually within 7-8 hours.