This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X50H, 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 SU50X50H is a double-acting profile-type standard cylinder with a Ø50mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X50H, which matches its bore, stroke, force and mounting.
The AirTAC SU50X50H is a discontinued double-acting profile-type cylinder featuring a 50mm bore, 50mm stroke, and high-temperature Viton H seals rated for 0 to 150 C. It delivers 982 N of push force at 0.5 MPa through a 1/4" port. AirTAC replaced this end-of-life unit with the SAU50X50H, a direct alternative retaining the exact bore, stroke, force, and SC-series mounting footprint.
Because this non-magnetic SKU lacks a sensor groove, it cannot accept position switches. The SAU upgrade introduces compatibility with modern CMSG/DMSG/EMSG sensors (the legacy line used CS1-B/DS1-B) and offers a new SAUF built-in-valve variant.
| Model | Airtac SU32~50 Standard Cylinder SU50X50H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X50H |
| Bore size | Ø50 mm |
| Stroke | 50 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 SAU50X50H 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 SAU50X50H 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. |
| ×50 | 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 finished parts out of a heated hot-stamping press, utilizing the Viton H seals to withstand ambient radiant heat up to 150 C without degrading.
Drives a short-stroke divertor arm on a packaging line, providing 982 N of push force at 0.5 MPa to reliably reroute 50 kg carton loads.
Secures composite materials inside a curing oven, where the high-temperature seal option maintains operational integrity in elevated thermal environments.
To replace this discontinued SU50X50H, order the SAU50X50H. Confirm the 50mm bore, 50mm stroke, M16x1.5 rod thread, 1/4" port, and your SC-series mounting hardware. This unit uses Viton H seals for up to 150 C; verify your temperature range. Since this is a non-magnetic SKU, it cannot hold a sensor. If you need position detection on the SAU, you must order an -S model and switch to CMSG/DMSG/EMSG switches. For loads needing 1374 N at 0.7 MPa, step up to a 63mm bore; for lighter loads under 628 N, a 40mm bore suffices. Note that a standard cylinder drifts without live air; use an external rod lock or pilot-operated check valve for load holding, as the adjustable cushion only decelerates.
Replacement checklist
Yes, the AirTAC SU50X50H is discontinued. The direct replacement is the SAU50X50H. It shares the same 50mm bore, 50mm stroke, 1/4" port, Viton H high-temperature seals, and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it pushes 982 N and pulls 825 N. Push force is 1374 N at 0.7 MPa, with a theoretical max of 200 kgf at 1.0 MPa. This specific non-magnetic SKU cannot accept sensors; the SAU replacement uses CMSG/DMSG/EMSG switches if you order the -S variant.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X50H replacement — usually within 7-8 hours.