This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X260S, 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 SU50X260S is a double-acting profile-type standard cylinder with a Ø50mm bore and 260mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X260S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X260S is a discontinued double-acting profile-type cylinder with a 50mm bore and 260mm stroke. It delivers 982N push and 825N pull at 0.5MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X260S, a direct upgrade retaining the exact body, force, and SC-series mounting.
The SAU replacement modernizes your sensor setup: the -S magnet on this old SU worked with legacy CS1-B/DS1-B switches, whereas the SAU uses current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M valve, which the SU lacked. Note that a plain cylinder drifts without live air; use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X260S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X260S |
| Bore size | Ø50 mm |
| Stroke | 260 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 SAU50X260S 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 SAU50X260S 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. |
| ×260 | 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.
Pushes light-to-medium cartons off a sorting line using 982N thrust, with the 260mm stroke clearing guide rails.
Indexes empty pallets into a wrapping station, utilizing the compact profile to fit tight conveyor frames.
Secures workpieces during light machining, applying a safe 589N clamping force without deforming components.
To replace the SU50X260S, order the SAU50X260S, confirming the 50mm bore, 260mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounts. Because this SKU includes the -S magnet, you must switch from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. For sizing both ways: dropping to a 40mm bore yields 628N push, while stepping up to a 63mm bore provides 1559N at 0.5MPa. At 260mm stroke, side-load risks are moderate, but ensure adequate guiding to prevent rod bending. The cylinder cannot hold a load without live air; the 21mm cushions only decelerate, so add a pilot-operated check valve if needed. If valve integration is desired, explore the SAUF option.
Replacement checklist
Yes, the SU50X260S is discontinued. The direct replacement is the AirTAC SAU50X260S. It shares the same 50mm bore, 260mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits the same application directly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. Because this is an -S magnet model, the old CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X260S replacement — usually within 7-8 hours.