This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X580S, 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 SU50X580S is a double-acting profile-type standard cylinder with a Ø50mm bore and 580mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X580S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X580S is a discontinued double-acting profile-type cylinder with a 50mm bore and 580mm stroke. Delivering 982 N push force at 0.5 MPa through a 1/4" port, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this end-of-life unit with the SAU50X580S, a direct replacement retaining the exact bore, stroke, force, port and SC-series mounting.
When upgrading to the SAU50X580S, your CS1-B/DS1-B legacy switches must change to the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU lacked.
| Model | Airtac SU32~50 Standard Cylinder SU50X580S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X580S |
| Bore size | Ø50 mm |
| Stroke | 580 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X580S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X580S 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). |
|---|---|
| 50 | Bore size in mm. |
| ×580 | 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.
Raises 50 kg tooling or bins vertically using the 982 N thrust at 0.5 MPa, requiring an external guide to manage the long 580mm rod extension.
Ejects machined parts from a press bed over a 580mm distance, relying on adjustable 21mm end cushions to decelerate the 20mm rod smoothly.
To replace the SU50X580S, order the SAU50X580S direct equivalent, verifying your 1/4" port, M16x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU includes a magnet (-S), note the mandatory sensor swap: legacy CS1-B/DS1-B switches will not fit the SAU, requiring CMSG/DMSG/EMSG sensors instead. If you need higher force, the neighboring 63mm bore provides 1559 N push at 0.5 MPa; if less is required, the 40mm bore offers 628 N. For the 580mm stroke, use an external guide to prevent rod bending and side-load damage. This cylinder will not hold a load without live air—add an external rod lock or pilot-operated check valve for secure holding, as the cushions only decelerate. The SAUF valve-integrated option can simplify cycling if you lack external valve plumbing.
Replacement checklist
Yes, the SU50X580S is discontinued. The direct replacement is the AirTAC SAU50X580S. It matches the 50mm bore, 580mm stroke, 982 N force, 1/4" port, and SC-series mounting. You simply order the SAU50X580S, but note that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 50mm bore features a 1/4" air port and a 20mm rod. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, with adjustable 21mm cushions at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X580S replacement — usually within 7-8 hours.