This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X140S, 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 SU32X140S is a double-acting profile-type standard cylinder with a Ø32mm bore and 140mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X140S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X140S is a discontinued double-acting profile cylinder with a 32 mm bore and 140 mm stroke, delivering 402 N of push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAU32X140S, a direct upgrade retaining the exact same extruded body profile, output force, 1/8" port, and SC-series mounting accessories.
Because this SU variant includes a piston magnet (-S), it originally paired with legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors.
| Model | Airtac SU32~50 Standard Cylinder SU32X140S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X140S |
| Bore size | Ø32 mm |
| Stroke | 140 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 SAU32X140S 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 SAU32X140S 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. |
| ×140 | 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.
Actuates a routing gate on a 30-800 mm/s conveyor line using the compact 32 mm profile body.
To replace this SU32X140S, order the SAU32X140S, verifying your 1/8" port thread (PT, G, or NPT) and SC-series mounting (LB, FA, FB, CA, CB, or TC). The 140 mm stroke falls well within the 1000 mm standard limit for this 32 mm bore. If you need to size both ways, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa, while dropping pressure reduces force proportionally. For the -S magnet option, note that your legacy CS1-B/DS1-B switches must be upgraded to CMSG/DMSG/EMSG sensors on the SAU. A plain cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for vertical holding. The SAU family also adds a SAUF variant with a built-in 4M solenoid valve, which the SU line lacked.
Replacement checklist
Yes, the SU32X140S is discontinued. The direct replacement is the AirTAC SAU32X140S. It shares the same 32 mm bore, 140 mm stroke, 1/8" port, and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it provides 402 N push and 345 N pull; at 0.7 MPa it pushes 563 N, and the theoretical max is 82 kgf at 1.0 MPa. Because this is an -S model with a magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X140S replacement — usually within 7-8 hours.