This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X80S, 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 SU50X80S is a double-acting profile-type standard cylinder with a Ø50mm bore and 80mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X80S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X80S is a discontinued double-acting profile-type cylinder with an 80mm stroke and 50mm bore. Delivering 982N push force at 0.5MPa via a 1/4" port, its extruded aluminum barrel is more compact than an ISO 15552 unit of the same size. The direct replacement is the SAU50X80S, matching the bore, stroke, force, port, and SC-series mounting.
When upgrading, note the SAU50X80S uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model, and introduces the SAUF built-in-valve variant.
| Model | Airtac SU32~50 Standard Cylinder SU50X80S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X80S |
| Bore size | Ø50 mm |
| Stroke | 80 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 SAU50X80S 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 SAU50X80S 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. |
| ×80 | 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.
Handles 50kg carton routing on conveyor lines using the 80mm stroke, providing positive push force without exceeding safe load limits.
Acts as a compact pneumatic stop for lightweight pallets, utilizing the 1/4" port and 982N thrust to halt items securely at workstations.
Clamps medium-duty workpieces during machining, where the shorter profile body saves space compared to standard ISO cylinders.
To replace this SU50X80S, order the SAU50X80S keeping the 50mm bore, 80mm stroke, 1/4" port, and SC-series mounting. Because this SKU has the -S magnet, you must switch to CMSG/DMSG/EMSG sensors as the older CS1-B/DS1-B switches are obsolete. If your application needs higher force, the 63mm bore yields 1559N push at 0.5MPa; if less is needed, the 40mm bore gives 628N. A plain cylinder drifts without live air, so use an external rod lock or pilot-operated check valve for secure load holding. For self-actuation, explore the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
Yes, the SU50X80S is discontinued. The direct replacement is the SAU50X80S, which shares the identical 50mm bore, 80mm stroke, output force, 1/4" port, and SC-series mounting accessories.
At 0.5MPa it provides 982N push and 825N pull force, increasing to 1374N push at 0.7MPa, with a theoretical max of 200kgf at 1.0MPa. Because this is an -S model, the original CS1-B/DS1-B sensors are obsolete and the SAU replacement requires CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X80S replacement — usually within 7-8 hours.