This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X450SN, 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 SU32X450SN 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 SAU32X450SN, which matches its bore, stroke, force and mounting.
The AirTAC SU32X450SN is a discontinued double-acting profile-type cylinder with a 32 mm bore and 450 mm stroke. It delivers 402 N push force at 0.5 MPa, utilizing a 1/8" port and M10x1.25 rod thread. AirTAC replaced this legacy unit with the SAU32X450SN, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU includes a magnet, it originally used CS1-B/DS1-B switches, whereas the SAU successor requires CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked. The NBR seal supports standard -20 to +70 C operation.
| Model | Airtac SU32~50 Standard Cylinder SU32X450SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X450SN |
| 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 SAU32X450SN 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 SAU32X450SN 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.
Pushes lightweight cartons at 30-800 mm/s on packaging lines, utilizing the 402 N force to redirect items without damaging contents.
Cycles access gates or light baffles over the 450 mm travel, benefiting from the compact profile body to save machine footprint.
To replace the SU32X450SN, order the SAU32X450SN direct equivalent, verifying the 32 mm bore, 450 mm stroke, 1/8" port, and PT thread. If downsizing, a 40 mm bore yields 628 N at 0.5 MPa; if upsizing, a 50 mm bore provides 982 N. The -S magnet means you must upgrade from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAU. The -N NBR seal is standard temperature; for 150 C environments specify Viton H. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock for held loads. Finally, the 450 mm stroke demands external guides to prevent rod bending under side loads. Consider the SAUF variant if you need a built-in valve.
Replacement checklist
Yes, the SU32X450SN is discontinued. The direct replacement is the SAU32X450SN. It matches the 32 mm bore, 450 mm stroke, 402 N force, 1/8" port, and SC-series mounting. You simply order the SAU equivalent.
It provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X450SN replacement — usually within 7-8 hours.