This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X50SN, 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 SU32X50SN 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 SAU32X50SN, which matches its bore, stroke, force and mounting.
The AirTAC SU32X50SN is a discontinued double-acting profile-type cylinder with a 32mm bore and 50mm stroke. It delivers 402N push force at 0.5MPa via a 1/8" port. AirTAC replaced it with the SAU32X50SN, a direct upgrade retaining the exact bore, stroke, force, port and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 equivalent. The -S magnet worked with legacy CS1-B/DS1-B switches, but the SAU replacement uses current CMSG/DMSG/EMSG sensors. The -N NBR seal handles -20 to +70C.
| Model | Airtac SU32~50 Standard Cylinder SU32X50SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X50SN |
| 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 SAU32X50SN 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 SAU32X50SN 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.
Ideal for securing delicate electronic components during assembly, providing precise 402N force without damaging the product.
Effectively pushes lightweight parcels on sorting lines, where the compact 32mm profile saves space while delivering reliable actuation.
Operates small access gates or diverters in material handling systems, benefiting from the 50mm stroke and adjustable cushions.
To replace this SU32X50SN, order the SAU32X50SN. Confirm the 1/8" port, M10x1.25 rod thread and PT thread type. The -S magnet means you must change sensors: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG on the SAU. If dropping to a bore size is considered, expect lower force; stepping up increases footprint. The SAUF variant offers a built-in valve the SU lacked. For load holding, note the cushion only decelerates; use an external rod lock or pilot-operated check valve to prevent drift on air loss.
Replacement checklist
Yes, the SU32X50SN is discontinued. The direct replacement is the SAU32X50SN. It shares the same 32mm bore, 50mm stroke, 402N force at 0.5MPa, 1/8" port, and SC-series mounting. You just order the SAU equivalent.
It delivers 402N push and 345N pull at 0.5MPa, 563N at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. The -S magnet on this SU works with legacy CS1-B/DS1-B switches. The SAU replacement upgrades this to current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X50SN replacement — usually within 7-8 hours.