This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X270S, 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 SU32X270S is a double-acting profile-type standard cylinder with a Ø32mm bore and 270mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X270S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X270S is a discontinued double-acting profile cylinder with a 32mm bore and 270mm stroke. Delivering 402N push at 0.5MPa, it uses an extruded aluminum barrel making it more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this EOL unit with the SAU32X270S, a direct replacement retaining the exact 1/8 port, M10x1.25 rod thread and SC-series mounting.
The SAU upgrade reuses the same body but modernizes sensing, swapping the legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF valve-integrated option the SU lacked. Note that the air cushion only decelerates; use an external rod lock for load holding.
| Model | Airtac SU32~50 Standard Cylinder SU32X270S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X270S |
| Bore size | Ø32 mm |
| Stroke | 270 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 SAU32X270S 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 SAU32X270S 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. |
| ×270 | 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, fitting neatly into compact frames.
To replace this SU32X270S with the SAU32X270S, verify the 32mm bore, 270mm stroke, 1/8 port, and SC-series mounting. Because this SKU includes the -S magnet, you must update your sensing: the SAU uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. If you need load holding on air loss, add a pilot-operated check valve, as the cushion only decelerates. At 270mm stroke, guide external rods to prevent side-load bending. For higher force, the 40mm bore offers 628N push at 0.5MPa; for smaller setups, the 32mm is optimal. The SAUF variant adds a built-in 4M solenoid valve if you need self-switching.
Replacement checklist
Yes, the SU32X270S is discontinued. The direct replacement is the SAU32X270S, which matches the 32mm bore, 270mm stroke, 402N force, 1/8 port, and SC-series mounting.
The SAU32X270S provides 402N push and 345N pull at 0.5MPa, 563N at 0.7MPa, and a max of 82kgf at 1.0MPa. The -S magnet on the 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 SAU32X270S replacement — usually within 7-8 hours.