This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X50FA, 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 Airtac SU32~50 Standard Cylinder SU32X50FA is a double-acting profile-type standard cylinder with a Ø32mm bore and 50mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X50FA, which matches its bore, stroke, force and mounting.
The AirTAC SU32X50FA is a discontinued double-acting profile-type cylinder with a 32mm bore, 50mm stroke, and an FA front-flange mount. Delivering 402N push force at 0.5MPa through a 1/8" port, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced it with the exact direct replacement SAU32X50FA: identical body, force, port, stroke, and SC-series FA mounting.
This no-magnet SKU cannot accept a sensor. If you previously used an -S model, the SAU upgrade transitions from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve variant. Note that standard cylinders drift on air loss; use an external rod lock for held loads.
| Model | Airtac SU32~50 Standard Cylinder SU32X50FA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X50FA |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAU32X50FA 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 SAU32X50FA 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. |
| ×50 | 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.
Short 50mm stroke pushes small cartons off a conveyor line, operating efficiently at 30-800 mm/s within tight machinery envelopes.
Acts as a compact pneumatic stop for low-mass product accumulation on roller conveyors, retracting quickly to release workflow.
To replace this SU32X50FA, order the SAU32X50FA, confirming the 32mm bore, 50mm stroke, 1/8" port, M10x1.25 rod thread, and FA front-flange mount. This non-magnetic version cannot take a switch; if sensing is needed, step up to an -S SAU model and migrate from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. For higher loads, the 40mm bore yields 628N push at 0.5MPa, while dropping to 0.15MPa yields only 120N. The 21mm cushions decelerate the rod but do not lock it—install a pilot-operated check valve for load holding. The 50mm stroke is well under the 1000mm standard limit, so rod bending is negligible. You can also explore the SAUF variant for an integrated 4M solenoid valve.
Replacement checklist
Yes, the AirTAC SU32X50FA is discontinued. The direct replacement is the SAU32X50FA. It shares the identical 32mm bore, 50mm stroke, 1/8" port, 402N force, and FA front-flange mounting, fitting the exact same SC-series accessory footprint.
At 0.5MPa it provides 402N push and 345N pull; 563N push at 0.7MPa; 724N at 0.9MPa; and a theoretical max of 82kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot accept a sensor. If you need position detection, order the -S version of the SAU replacement, which uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X50FA replacement — usually within 7-8 hours.