This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX160, 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 SI32AX160 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 SAI32AX160, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX160 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 160 mm stroke. It delivers a push force of 402 N at 0.5 MPa via a G1/8 port and M10x1.25 rod thread. AirTAC replaced this legacy unit with the SAI32AX160, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, output force and porting.
The SAI successor features an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. This SKU uses an SUS420J2 stainless steel rod (the -A option) for corrosion resistance, but lacks a magnet, meaning it cannot accept a CS1-B/DS1-B sensor.
| Model | Airtac SI32 Standard Air Cylinder SI32AX160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX160 |
| 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 SAI32AX160 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 SAI32AX160 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).
Ideal for securing lightweight machining fixtures or electronics housings, utilizing the 402 N push force at 0.5 MPa with the corrosion-resistant SUS420J2 rod.
Drives short-stroke routing gates or pop-up stops on material handling lines, where the 160 mm travel and 20 kg vertical lift capacity are perfectly matched.
Fits into tight automated benchtop machinery using its ISO 15552 footprint, providing reliable linear actuation without requiring external tie-rod supports.
To replace the SI32AX160, order the SAI32AX160 and confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 port thread (PT/G/NPT), and the 160 mm stroke. Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, order an SAI32AX160S instead. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke ends—so for load holding use an external pilot check valve or the SAIL/BSAI lock variant. With a 160 mm stroke, ensure guide alignment to prevent rod bending side-loads.
Replacement checklist
Yes, the AirTAC SI32AX160 is discontinued. The direct replacement is the SAI32AX160. It shares the identical ISO 15552 mounting interface, 32 mm bore, 160 mm stroke, output force, G1/8 port, and M10x1.25 rod thread, fitting directly into existing fixtures.
This 32 mm bore cylinder uses a G1/8 air port. At 0.5 MPa it provides 402 N of push force and 345 N of pull force. At 0.7 MPa the push force is 563 N, and at 0.9 MPa it is 724 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX160 replacement — usually within 7-8 hours.