This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X720, 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 SU50X720 is a double-acting profile-type standard cylinder with a Ø50mm bore and 720mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X720, which matches its bore, stroke, force and mounting.
The AirTAC SU50X720 is a discontinued double-acting profile-type cylinder with a 50mm bore and 720mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. The direct replacement is the SAU50X720, matching the body, stroke, force, and SC-series mounting. Because this SKU lacks a magnet, it cannot accept a sensor.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a SAUF built-in valve option the SU lacked. Note that a 720mm stroke requires external guides to prevent rod bending.
| Model | Airtac SU32~50 Standard Cylinder SU50X720 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X720 |
| Bore size | Ø50 mm |
| Stroke | 720 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 SAU50X720 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 SAU50X720 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. |
| ×720 | 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 packages across a 720mm conveyor lane using the 982N push force at 0.5MPa, guided externally to prevent rod bending.
Ejects pressed parts from a machine bed, relying on the 21mm adjustable air cushions at both ends to decelerate the 720mm travel smoothly.
To replace the SU50X720, order the SAU50X720 with the same 50mm bore, 720mm stroke, M16x1.5 rod thread, and 1/4" port (PT/G/NPT). Reuse your SC-series mounts. This non-magnetic SKU cannot take a switch; if you need sensing, order an SAU-S and use CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For loads needing holding on air loss, add an external rod lock, as cushions only decelerate. With a 720mm stroke, use external guides to prevent rod bending. Neighboring bores: a 40mm gives 628N [email protected], while a 63mm gives 1559N.
Replacement checklist
Yes, the AirTAC SU50X720 is discontinued. The direct replacement is the SAU50X720. It offers the same 50mm bore, 720mm stroke, 1/4" port, and SC-series mounting compatibility. The body and force characteristics are unchanged.
The 50mm bore provides 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. Because this specific SKU lacks a magnet (-S), it cannot accept a sensor. The SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X720 replacement — usually within 7-8 hours.