This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X65SH, 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 SU50X65SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 65mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X65SH, which matches its bore, stroke, force and mounting.
The AirTAC SU50X65SH is a discontinued double-acting profile cylinder with a 50mm bore and 65mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa, utilizing a 1/4" port and a 20mm piston rod with M16x1.5 threading. AirTAC replaced this legacy unit with the SAU50X65SH, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series mounting compatibility.
When upgrading, note that your -S magnet equipped model originally used CS1-B/DS1-B switches, whereas the SAU successor requires CMSG/DMSG/EMSG sensors. The -H Viton seal on this unit supports 0-150 C high-temperature environments. Remember, the cushion only decelerates; it does not hold loads without live air.
| Model | Airtac SU32~50 Standard Cylinder SU50X65SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X65SH |
| Bore size | Ø50 mm |
| Stroke | 65 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 SAU50X65SH 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 SAU50X65SH 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. |
| ×65 | 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.
Secures workpieces in machining fixtures using 982 N of push force at 0.5 MPa, with the Viton seal resisting cutting fluid heat.
Pushes lightweight packages off a belt line; the 65mm stroke provides fast actuation without excessive overtravel.
To replace this discontinued SU50X65SH, order the SAU50X65SH, confirming the 50mm bore, 65mm stroke, 1/4" port, and PT thread. Retain your SC-series mounting brackets, but plan to upgrade your -S magnet sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG. If you need integrated air control, the SAU family offers the SAUF built-in valve variant the SU lacked. For load holding, add an external rod lock or pilot-operated check valve, as cushions only decelerate. If sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N; both share the 30-800 mm/s speed range. For this 65mm stroke, side-load bending is minimal, but always guide the tooling.
Replacement checklist
Yes, the AirTAC SU50X65SH is discontinued. The direct replacement is the SAU50X65SH. It shares the identical 50mm bore, 65mm stroke, 982 N output force, 1/4" port, and SC-series mounting hardware, fitting the same application.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf max at 1.0 MPa. Because this SU model has a -S magnet, note the SAU replacement upgrades the legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X65SH replacement — usually within 7-8 hours.