This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X25, 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 Airtac SU32~50 Standard Cylinder SU32X25 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 SAU32X25, which matches its bore, stroke, force and mounting.
The AirTAC SU32X25 is a discontinued double-acting profile-type cylinder with a 32mm bore and 25mm stroke. Delivering 402N push at 0.5MPa via a 1/8" port, it is replaced by the SAU32X25. This direct upgrade matches the exact body, force and SC-series mounting.
The SAU brings current CMSG/DMSG/EMSG sensors and a new SAUF valve-integrated option. For this non-magnet SKU, no switch can be fitted.
| Model | Airtac SU32~50 Standard Cylinder SU32X25 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X25 |
| 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 SAU32X25 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 SAU32X25 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.
Uses the 402N push force at 0.5MPa to eject light plastic components from a molding area, relying on the short 25mm stroke for rapid cycling.
Pushes small cartons on a conveyor line where a compact 32mm profile body is required to fit within tight side-clearance constraints.
To replace the SU32X25, order the SAU32X25. Verify your 1/8" port, M10x1.25 rod thread and SC-series mounts. As this SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, specify an -S SAU model (which uses CMSG/DMSG/EMSG switches instead of legacy CS1-B/DS1-B). The 25mm stroke is highly compact. For sizing, the neighbouring 40mm bore yields 628N push at 0.5MPa if more force is needed. Note: the cylinder will not hold a load without live air—the 21mm cushions only decelerate; use a pilot-operated check valve for holding.
Replacement checklist
Yes, the SU32X25 is discontinued. The direct replacement is the AirTAC SAU32X25. It shares the same 32mm bore, 25mm stroke, 1/8" port, output force and SC-series mounting, so it fits the same application without modification.
It features a 1/8" port and delivers a push of 402N and pull of 345N at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. The 32mm bore uses a 12mm rod with an M10x1.25 thread.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X25 replacement — usually within 7-8 hours.