This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X125SH, 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 SU32X125SH 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 SAU32X125SH, which matches its bore, stroke, force and mounting.
The AirTAC SU32X125SH is a discontinued double-acting profile-type cylinder with a 32 mm bore and 125 mm stroke. It delivers 402 N push force at 0.5 MPa through a 1/8" port. AirTAC replaced this unit with the SAU32X125SH, a direct upgrade retaining the exact bore, stroke, force, port size, and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches, but the SAU replacement uses modern CMSG/DMSG/EMSG sensors. The -H seal option provides Viton FKM high-temperature resistance up to 150 C.
| Model | Airtac SU32~50 Standard Cylinder SU32X125SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X125SH |
| 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 SAU32X125SH 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 SAU32X125SH 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.
Provides reliable actuation for routing small boxes on a conveyor line, utilizing the compact 32 mm profile body to fit tight spaces.
With the -H Viton seal handling up to 150 C, this cylinder reliably sorts warm parts exiting a drying oven without seal degradation.
To replace this SU32X125SH, order the SAU32X125SH direct equivalent, confirming the 32 mm bore, 125 mm stroke, M10x1.25 rod thread, and 1/8" port. Retain your SC-series mounting brackets, as they fit the identical profile body. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. The -H Viton seal allows operation up to 150 C. If you need higher force, the neighbouring 40 mm bore offers 628 N push at 0.5 MPa. For load holding, know that the air cushion only decelerates the piston; it does not lock. You must add an external rod lock or pilot-operated check valve to prevent drift on air loss. If your application needs integrated control, the SAU family offers the SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked.
Replacement checklist
Yes, the SU32X125SH is discontinued. The direct replacement is the AirTAC SAU32X125SH. It shares the same 32 mm bore, 125 mm stroke, 1/8" port, output force, and SC-series mounting, so it fits your existing application directly. The only change is that your -S magnet will require upgrading from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
The 32 mm bore uses a 1/8" port. At 0.5 MPa it provides 402 N push and 345 N pull force. At 0.7 MPa push is 563 N, and at 0.9 MPa it is 724 N. The theoretical maximum force is 82 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X125SH replacement — usually within 7-8 hours.