This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X300S, 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 SU32X300S is a double-acting profile-type standard cylinder with a Ø32mm bore and 300mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X300S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X300S is a discontinued double-acting profile-type cylinder featuring a 32mm bore, 300mm stroke, and a 1/8" port. It delivers 402 N of push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAU32X300S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; upgrading to the SAU requires switching to current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve. Note that plain cylinders drift without live air, so use an external rod lock for load holding.
| Model | Airtac SU32~50 Standard Cylinder SU32X300S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X300S |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAU32X300S 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 SAU32X300S 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. |
| ×300 | 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.
Ejects machined components from fixtures using the 20 kg vertical lift capacity, relying on the compact profile to fit tight machine envelopes.
Actuates flow control gates in material handling lines, where the 1/8" port and 32mm bore provide responsive cycling at 30-800 mm/s.
To replace this SU32X300S, order the SAU32X300S. Confirm the 1/8" port, M10x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are retained. Because this is a -S magnet model, you must upgrade your sensors from legacy CS1-B/DS1-B to the modern CMSG/DMSG/EMSG family. If your application needs self-switching, explore the SAUF variant which integrates a 4M valve. Sizing both ways: a 40mm bore offers 628 N push at 0.5 MPa if you need more force, while a 20mm bore is smaller. At 300mm stroke, prevent rod bending by guiding the load externally. For load holding on air loss, add a pilot-operated check valve or rod lock, as cushions only decelerate.
Replacement checklist
Yes, the AirTAC SU32X300S is discontinued. The direct replacement is the SAU32X300S. It shares the identical 32mm bore, 300mm stroke, force, 1/8" port, and SC-series mounting, so it drops right into the same application.
At 0.5 MPa it pushes 402 N and pulls 345 N; at 0.7 MPa it pushes 563 N, with a theoretical max of 82 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X300S replacement — usually within 7-8 hours.