This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X275S, 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 SU32X275S is a double-acting profile-type standard cylinder with a Ø32mm bore and 275mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X275S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X275S is a discontinued double-acting profile-type cylinder with a 32mm bore and 275mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a 1/8" port. AirTAC replaced this unit with the SAU32X275S, a direct upgrade sharing the same extruded body, force, stroke and SC-series mounting footprint.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X275S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X275S |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAU32X275S 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 SAU32X275S 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. |
| ×275 | 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 fixture.
Actuates a routing flap at 275mm stroke to sort small parcels on a conveyor belt without requiring ISO 15552 bulk.
Secures delicate electronic housings during assembly, taking advantage of the 345N pull force and short profile body.
To replace this discontinued SU32X275S, order the SAU32X275S. Verify your 1/8" port, M10x1.25 rod thread and SC-series mounting hardware, which all carry over directly. If your stroke needs differ, the neighboring 40mm bore provides 628N push at 0.5MPa, while dropping to a shorter stroke maintains the 32mm profile. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the new SAU. At 275mm stroke, ensure adequate guidance to prevent rod bending under side loads. This plain cylinder will not hold a load without air; use an external rod lock or pilot-operated check valve if drift is unacceptable.
Replacement checklist
Yes, the SU32X275S is discontinued. The direct replacement is the AirTAC SAU32X275S. It shares the same 32mm bore, 275mm stroke, 1/8" port, output force and SC-series mounting, so it drops directly into the same application.
At 0.5MPa it provides 402N push and 345N pull, increasing to 563N push at 0.7MPa, with a theoretical max of 82kgf at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the new SAU unit.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X275S replacement — usually within 7-8 hours.