This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X260, 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 SU50X260 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 SAU50X260, which matches its bore, stroke, force and mounting.
The AirTAC SU50X260 is a discontinued double-acting profile-type cylinder with a 50mm bore and 260mm stroke. Built with an extruded aluminum barrel, it is shorter and more compact than an ISO 15552 cylinder of the same bore, delivering 982 N of push force at 0.5 MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X260, a direct alternative retaining the exact body dimensions, stroke, output force, and SC-series mounting hardware.
Because this specific SKU lacks a magnet, it cannot accept a piston switch. The SAU50X260 successor modernizes sensing by using CMSG/DMSG/EMSG switches on its groove, and introduces the SAUF variant with a built-in 4M solenoid valve the SU line never offered.
| Model | Airtac SU32~50 Standard Cylinder SU50X260 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X260 |
| 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 SAU50X260 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 SAU50X260 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.
Acts as a 50 kg vertical lift stop in end-of-line pallet handling, relying on adjustable 21mm air cushions to decelerate the payload smoothly.
Secures workpieces during machining using 982 N of push force at 0.5 MPa, taking advantage of the compact profile body to save machine footprint.
To replace the SU50X260, order the SAU50X260 with the same 50mm bore, 260mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Since this SKU has no magnet (-S), it cannot support sensing; if you require position detection on the SAU, specify the -S option and note that the legacy CS1-B/DS1-B switches are replaced by the current CMSG/DMSG/EMSG family. When sizing, check neighboring bores: a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. For stroke lengths over 300mm, guide the load to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for load holding. If self-switching is needed, explore the SAUF valve-integrated model.
Replacement checklist
Yes, the AirTAC SU50X260 is discontinued and end-of-life. The direct replacement is the SAU50X260. It shares the identical 50mm bore, 260mm stroke, 982 N push force at 0.5 MPa, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
This double-acting cylinder delivers 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. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU50X260 replacement supports CMSG/DMSG/EMSG switches if you specify the -S magnet option.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X260 replacement — usually within 7-8 hours.