This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X125S, 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 SU32X125S is a double-acting profile-type standard cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X125S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X125S is a discontinued double-acting profile-type cylinder with a 32mm bore and 125mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a 1/8" port. The direct replacement is the SAU32X125S, preserving the original bore, stroke, force, port, and SC-series mounting footprint.
This compact extruded-aluminium body is shorter than an ISO 15552 equivalent. Because this is an -S magnet model, note the SAU upgrade transitions from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and the new SAUF variant offers a built-in valve the SU lacked.
| Model | Airtac SU32~50 Standard Cylinder SU32X125S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X125S |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAU32X125S 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 SAU32X125S 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. |
| ×125 | 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 lightweight electronics housings during machining, utilizing the 402N push force at 0.5MPa for stable, low-profile fixturing.
Deploys a 125mm stroke to push small cartons off a production line, where the compact 32mm extruded body saves valuable machine space.
To replace this SU32X125S, order the SAU32X125S. Verify your 1/8" port thread (PT, G, or NPT) and M10x1.25 rod-end. The 125mm stroke is standard (max 1000mm for 32mm bore). If sizing alternatives, a 40mm bore yields 628N push at 0.5MPa, while dropping to a smaller bore loses force. The -S magnet means you must upgrade sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG. A plain cylinder drifts without air; use an external rod lock for holding. The SAUF built-in-valve option is available if needed.
Replacement checklist
Yes, the SU32X125S is discontinued. The direct replacement is the SAU32X125S. It shares the identical 32mm bore, 125mm stroke, 1/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
It provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. Because this is an -S magnet model, the original CS1-B/DS1-B switches are obsolete; the SAU32X125S replacement requires current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X125S replacement — usually within 7-8 hours.