This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X450S, 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 SU32X450S is a double-acting profile-type standard cylinder with a Ø32mm bore and 450mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X450S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X450S is a discontinued double-acting profile-type cylinder with a 32mm bore and 450mm stroke. Delivering 402N push force at 0.5MPa, its extruded aluminum barrel is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this EOL unit with the SAU32X450S direct replacement, matching the exact bore, stroke, 1/8" port, output force and SC-series mounting.
When upgrading to the SAU32X450S, the body and mechanics remain identical, but the -S magnet now pairs with current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B sensors. The SAU line also introduces a SAUF built-in-valve variant the SU never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X450S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X450S |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAU32X450S 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 SAU32X450S 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. |
| ×450 | 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 routing gates on 24V conveyor lines where the 402N push force at 0.5MPa easily overcomes carton friction without requiring high-pressure air.
Ejects small machined components from fixtures, using the extruded profile body to save space in dense CNC cells while achieving the 450mm ejection stroke.
To replace the SU32X450S, order the SAU32X450S direct equivalent, verifying the 1/8" port, M10x1.25 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB). Because this SKU includes the -S magnet, you must switch from the old CS1-B/DS1-B switches to the SAU-compatible CMSG/DMSG/EMSG sensor family. If your application requires a held load during air loss, note that the adjustable 21mm air cushions only decelerate the piston at stroke ends and do not function as a brake; integrate an external rod lock or pilot-operated check valve. With the 450mm stroke, prevent rod bending by supporting the load against side-load forces with an external linear guide. If you need more force, the neighboring 40mm bore provides 628N push at 0.5MPa, while dropping to a 25mm stroke reduces overall length if travel can be shortened.
Replacement checklist
Yes, the SU32X450S is discontinued and end-of-life. The direct replacement is the AirTAC SAU32X450S. It shares the identical 32mm bore, 450mm stroke, 1/8" port, output force, and SC-series mounting, so it fits the same application. You simply order the SAU32X450S as a direct replacement.
The SAU32X450S maintains the exact force figures: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. The critical upgrade difference is the sensors: this discontinued SU-S magnet used legacy CS1-B/DS1-B switches, whereas the SAU replacement requires the current CMSG/DMSG/EMSG switch family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X450S replacement — usually within 7-8 hours.