This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X25SLB, 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 SU32X25SLB is a double-acting profile-type standard cylinder with a Ø32mm bore and 25mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X25SLB, which matches its bore, stroke, force and mounting.
The AirTAC SU32X25SLB is a discontinued double-acting profile-type cylinder with a 32mm bore and 25mm stroke. Delivering 402N push force at 0.5MPa, it features an extruded aluminum barrel and adjustable air cushions, making it more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this unit with the SAU32X25SLB, a direct replacement retaining the exact bore, stroke, output force, 1/8" port, and SC-series LB mounting interface.
This SU model includes a piston magnet for legacy CS1-B/DS1-B switches; upgrading to the SAU requires switching to current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked.
| Model | Airtac SU32~50 Standard Cylinder SU32X25SLB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X25SLB |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAU32X25SLB 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 SAU32X25SLB 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. |
| ×25 | 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.
Provides compact actuation for a diverting gate on a conveyor line, fitting into tight spaces with the LB foot mount.
Secures small electronic components or housings during an assembly process, offering 20kg of vertical holding margin.
To replace this SU32X25SLB, order the SAU32X25SLB direct equivalent, verifying the 32mm bore, 25mm stroke, 1/8" port, M10x1.25 rod thread, and LB mounting. Because this SKU has the -S magnet, note that your legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the SAU. If your application needs higher force, the neighboring 40mm bore provides 628N push at 0.5MPa; if less force is acceptable, check smaller options. A plain cylinder does not hold load without live air, as the cushion only decelerates near stroke end; for load holding on air loss, install an external rod lock or pilot-operated check valve. For automated actuation, consider the SAUF valve-integrated variant.
Replacement checklist
Yes, the AirTAC SU32X25SLB is discontinued. The direct replacement is the SAU32X25SLB. It matches the original 32mm bore, 25mm stroke, 1/8" port, output force, and SC-series LB mounting, so it fits the same application. You just order the SAU equivalent.
The 32mm bore provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. This SU32X25SLB includes a magnet for legacy CS1-B/DS1-B switches; when upgrading to the SAU replacement, you must use the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X25SLB replacement — usually within 7-8 hours.