This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X325S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC SU32~50 Standard Cylinder SU32X325S is a double-acting profile-type standard cylinder with a Ø32mm bore and 325mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X325S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X325S is a discontinued double-acting profile-type cylinder with a 32mm bore and 325mm stroke, delivering 402N push force at 0.5MPa via a 1/8" port. AirTAC replaced this legacy unit with the SAU32X325S, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU includes a magnet (-S), it originally paired with legacy CS1-B/DS1-B switches, whereas the SAU replacement now uses current CMSG/DMSG/EMSG sensors. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU32X325S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X325S |
| Bore size | Ø32 mm |
| Stroke | 325 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| 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, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X325S carries the same 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 SAU32X325S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×325 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Uses the 402N push force at 0.5MPa to reliably push lightweight molded components out of a machining center.
Extends 325mm to deflect small cartons on a sorting line, benefiting from the compact 32mm profile body.
To replace this SU32X325S with the SAU32X325S, verify the 32mm bore, 325mm stroke, 1/8" port, M10x1.25 rod thread, and SC-series mounting. If your fixture relied on the -S magnet, note that the SAU uses CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B. For loads needing 563N at 0.7MPa, this bore suffices, but heavier cycles may require stepping up to a 40mm bore. At 325mm stroke, prevent rod bending by supporting the load with an external guide. The cylinder will not hold a load without live air; use an external rod lock or pilot-operated check valve for safety. The SAUF variant offers a built-in valve the SU lacked.
Replacement checklist
Yes, the SU32X325S is discontinued. The direct replacement is the AirTAC SAU32X325S, which matches the 32mm bore, 325mm stroke, 1/8" port, force, and SC-series mounting.
It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a max of 82kgf at 1.0MPa. The -S magnet on this SU worked with CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X325S replacement — usually within 7-8 hours.